Pub Date : 2022-11-20DOI: 10.1584/jpestics.D22-049
Daisuke Hayasaka, Masayoshi K Hiraiwa, Yu Maebara, Yugo Seko
Slow-acting fipronil is one of the best components for controlling invasive ants. However, its efficacy against invasive Lepisiota frauenfeldi, which recently invaded Japan, remains unclear. Here, its acute toxicity to Le. frauenfeldi was assessed, and its lethal concentrations were compared with those against other invasive ants (Linepithema humile and Solenopsis invicta). The LC10 and LC50 values of fipronil for Le. frauenfeldi were significantly lower than the previously reported values for Li. humile and/or S. invicta, and its LC90 value against Le. frauenfeldi was in the same range as that required for Li. humile extermination. Additionally, Le. frauenfeldi can be more sensitive to fipronil than non-target arthropods. Therefore, recent fipronil-based Li. humile and S. invicta eradication/control programs may be effective against Le. frauenfeldi as well. Moreover, applying fipronil at dosages appropriate for Le. frauenfeldi would lead to effective Le. frauenfeldi extermination/control with low damage to other native species/ants.
{"title":"Acute toxicity of fipronil to an invasive ant, <i>Lepisiota frauenfeldi</i>.","authors":"Daisuke Hayasaka, Masayoshi K Hiraiwa, Yu Maebara, Yugo Seko","doi":"10.1584/jpestics.D22-049","DOIUrl":"https://doi.org/10.1584/jpestics.D22-049","url":null,"abstract":"<p><p>Slow-acting fipronil is one of the best components for controlling invasive ants. However, its efficacy against invasive <i>Lepisiota frauenfeldi</i>, which recently invaded Japan, remains unclear. Here, its acute toxicity to <i>Le. frauenfeldi</i> was assessed, and its lethal concentrations were compared with those against other invasive ants (<i>Linepithema humile</i> and <i>Solenopsis invicta</i>). The LC<sub>10</sub> and LC<sub>50</sub> values of fipronil for <i>Le. frauenfeldi</i> were significantly lower than the previously reported values for <i>Li. humile</i> and/or <i>S. invicta</i>, and its LC<sub>90</sub> value against <i>Le. frauenfeldi</i> was in the same range as that required for <i>Li. humile</i> extermination. Additionally, <i>Le. frauenfeldi</i> can be more sensitive to fipronil than non-target arthropods. Therefore, recent fipronil-based <i>Li. humile</i> and <i>S. invicta</i> eradication/control programs may be effective against <i>Le. frauenfeldi</i> as well. Moreover, applying fipronil at dosages appropriate for <i>Le. frauenfeldi</i> would lead to effective <i>Le. frauenfeldi</i> extermination/control with low damage to other native species/ants.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 4","pages":"208-212"},"PeriodicalIF":2.4,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/00/1c/jps-47-4-D22-049.PMC9716042.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10360215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Colletotrichum gloeosporioides species complex (CGSC) is the major pathogen causing strawberry anthracnose in Taiwan. Benzimidazoles and strobilurins are common fungicides used to control strawberry anthracnose. A total of 108 CGSC isolates were collected from five major strawberry-producing areas in Taiwan. The half-maximal effective concentration (EC50) values of most CGSC isolates for benomyl (59 isolates), carbendazim (70 isolates), and thiabendazole (63 isolates) were higher than 500 µg a.i./mL. Strobilurin tests showed that the EC50 values of most CGSC isolates for azoxystrobin (66 isolates), kresoxim-methyl (42 isolates), and trifloxystrobin (56 isolates) were higher than 500 µg a.i./mL. However, most CGSC isolates were sensitive to pyraclostrobin at 100 µg a.i./mL. Fungicide tests indicated that CGSC isolates show multi-resistance to benzimidazoles and strobilurins. Benzimidazole-resistant isolates were associated with a point mutation in codon 198 of the β-tubulin gene, and strobilurin-resistant isolates did not correspond with mutation in the cyt b gene or alternative oxidase activity.
炭疽菌是台湾草莓炭疽病的主要病原菌。苯并咪唑和间苯脲是常用的杀真菌剂,用于控制草莓炭疽病。从台湾5个主要草莓产区共采集到108株CGSC分离株。大多数CGSC菌株对苯甲酰(59株)、多菌灵(70株)和噻苯达唑(63株)的半最大有效浓度(EC50)值均大于500µg a.i./mL。Strobilurin试验结果显示,大多数CGSC菌株对偶氮氧虫酯(66株)、甲基克雷索辛(42株)和三氯虫酯(56株)的EC50值均大于500µg a.i./mL。然而,大多数CGSC分离株对100 μ g a.i./mL pyraclostrobin敏感。杀菌剂试验表明,CGSC菌株对苯并咪唑类和异脲类具有多重抗性。苯并咪唑耐药菌株与β-微管蛋白基因密码子198的点突变有关,而strobilurin耐药菌株与cyt - b基因或替代氧化酶活性的突变无关。
{"title":"Sensitivity of <i>Colletotrichum gloeosporioides</i> species complex (CGSC) isolated from strawberry in Taiwan to benzimidazole and strobilurin.","authors":"Sheng-Chi Chu, Kuo-Hsi Lin, Tsung-Chun Lin, Chinnapan Thanarut, Wen-Hsin Chung","doi":"10.1584/jpestics.D22-030","DOIUrl":"https://doi.org/10.1584/jpestics.D22-030","url":null,"abstract":"<p><p><i>Colletotrichum gloeosporioides</i> species complex (CGSC) is the major pathogen causing strawberry anthracnose in Taiwan. Benzimidazoles and strobilurins are common fungicides used to control strawberry anthracnose. A total of 108 CGSC isolates were collected from five major strawberry-producing areas in Taiwan. The half-maximal effective concentration (EC<sub>50</sub>) values of most CGSC isolates for benomyl (59 isolates), carbendazim (70 isolates), and thiabendazole (63 isolates) were higher than 500 µg a.i./mL. Strobilurin tests showed that the EC<sub>50</sub> values of most CGSC isolates for azoxystrobin (66 isolates), kresoxim-methyl (42 isolates), and trifloxystrobin (56 isolates) were higher than 500 µg a.i./mL. However, most CGSC isolates were sensitive to pyraclostrobin at 100 µg a.i./mL. Fungicide tests indicated that CGSC isolates show multi-resistance to benzimidazoles and strobilurins. Benzimidazole-resistant isolates were associated with a point mutation in codon 198 of the β-tubulin gene, and strobilurin-resistant isolates did not correspond with mutation in the <i>cyt b</i> gene or alternative oxidase activity.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 4","pages":"172-183"},"PeriodicalIF":2.4,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/9d/c5/jps-47-4-D22-030.PMC9716047.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10360704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The target site of the novel fungicide quinofumelin was investigated in the rice blast fungus Pyricularia oryzae. Quinofumelin-induced mycelial growth inhibition was reversed by orotate but not by dihydroorotate. Recovery tests suggested that the target site of quinofumelin was dihydroorotate dehydrogenase (DHODH), which catalyzes the oxidation of dihydroorotate to orotate. Quinofumelin strongly inhibited P. oryzae class 2 DHODH (DHODH II) (IC50: 2.8 nM). The inhibitory activities of mycelial growth and DHODH II were strongly positively correlated, indicating that DHODH II inhibition by quinofumelin lead to antifungal activity. A P. oryzae DHODH II gene (PoPYR4) disruption mutant (ΔPopyr4), showing the same tendency as the quinofumelin-treated wild strain in recovery tests, was constructed, and disease symptoms were not observed in rice plants infected by ΔPopyr4. Thus, DHODH II, which plays an important role in pathogenicity and mycelial growth, is found to be the target site of quinofumelin.
{"title":"The target site of the novel fungicide quinofumelin, <i>Pyricularia oryzae</i> class II dihydroorotate dehydrogenase.","authors":"Norikazu Higashimura, Akira Hamada, Toshiaki Ohara, Seiya Sakurai, Hiroyuki Ito, Shinichi Banba","doi":"10.1584/jpestics.D22-027","DOIUrl":"https://doi.org/10.1584/jpestics.D22-027","url":null,"abstract":"<p><p>The target site of the novel fungicide quinofumelin was investigated in the rice blast fungus <i>Pyricularia oryzae</i>. Quinofumelin-induced mycelial growth inhibition was reversed by orotate but not by dihydroorotate. Recovery tests suggested that the target site of quinofumelin was dihydroorotate dehydrogenase (DHODH), which catalyzes the oxidation of dihydroorotate to orotate. Quinofumelin strongly inhibited <i>P. oryzae</i> class 2 DHODH (DHODH II) (IC<sub>50</sub>: 2.8 nM). The inhibitory activities of mycelial growth and DHODH II were strongly positively correlated, indicating that DHODH II inhibition by quinofumelin lead to antifungal activity. A <i>P. oryzae</i> DHODH II gene (<i>PoPYR4</i>) disruption mutant (<i>ΔPopyr4</i>), showing the same tendency as the quinofumelin-treated wild strain in recovery tests, was constructed, and disease symptoms were not observed in rice plants infected by <i>ΔPopyr4</i>. Thus, DHODH II, which plays an important role in pathogenicity and mycelial growth, is found to be the target site of quinofumelin.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 4","pages":"190-196"},"PeriodicalIF":2.4,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5e/fe/jps-47-4-D22-027.PMC9716045.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10353890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-20DOI: 10.1584/jpestics.D22-019
Saleh Panahandeh, Kamal Ahmadi
The common pistachio psylla, Agonoscena pistaciae, is a serious global pest menacing pistachio orchards. Considering the dangers of using excessive chemical pesticides, it seems that using natural insecticides such as diatomaceous earth is a suitable way to lower the residual amount of highly hazardous pesticides. In this study, the effects of diatomaceous earth with different additives, including dipotassium hydrogen phosphate, polyurethane glue as a wood adhesive, and potassium silicate, were investigated in several concentrations over two years in orchard conditions. Although all treatments showed significant effects, the most effective treatments were (diatomaceous earth+dipotassium hydrogen phosphate) and (diatomaceous earth+polyurethane glue). Therefore, the use of diatomaceous earth combined with the additive materials mentioned can potentially be a safe method for the integrated management of the common pistachio psylla.
{"title":"Diatomaceous earth foliar spraying along with adjuvants in pistachio orchards associated with the common pistachio psylla, <i>Agonoscena pistaciae</i>.","authors":"Saleh Panahandeh, Kamal Ahmadi","doi":"10.1584/jpestics.D22-019","DOIUrl":"https://doi.org/10.1584/jpestics.D22-019","url":null,"abstract":"<p><p>The common pistachio psylla, <i>Agonoscena pistaciae</i>, is a serious global pest menacing pistachio orchards. Considering the dangers of using excessive chemical pesticides, it seems that using natural insecticides such as diatomaceous earth is a suitable way to lower the residual amount of highly hazardous pesticides. In this study, the effects of diatomaceous earth with different additives, including dipotassium hydrogen phosphate, polyurethane glue as a wood adhesive, and potassium silicate, were investigated in several concentrations over two years in orchard conditions. Although all treatments showed significant effects, the most effective treatments were (diatomaceous earth+dipotassium hydrogen phosphate) and (diatomaceous earth+polyurethane glue). Therefore, the use of diatomaceous earth combined with the additive materials mentioned can potentially be a safe method for the integrated management of the common pistachio psylla.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"125-130"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e1/a1/jps-47-3-D22-019.PMC9706285.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10371197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The extrapolability of the lysimeter test as a dissipation simulator in an actual paddy field was evaluated using mathematical models and their inverse analyses for predicting pesticide fate and transport processes in paddy test systems. As a source of experimental data, a four-year comparative experiment in lysimeters and paddy fields was conducted using various paddy pesticides. First, the dissipations for various active ingredients in granule pesticides under submerged applications were statistically compared using simple kinetic modeling. Second, the dissipation pathways, unobserved experimental components, and effect of the experimental setting were evaluated using a higher tier mathematical model with a novel inverse analysis protocol. Finally, owing to experimental constraints, the unobtainable parameters were extracted from the laboratory container test before being transferred to compare the outdoor experimental data under different formulation types.
{"title":"Use of mathematical modeling and its inverse analysis for precise assessment of pesticide dissipation in a paddy environment.","authors":"Kei Kondo","doi":"10.1584/jpestics.J22-03","DOIUrl":"https://doi.org/10.1584/jpestics.J22-03","url":null,"abstract":"<p><p>The extrapolability of the lysimeter test as a dissipation simulator in an actual paddy field was evaluated using mathematical models and their inverse analyses for predicting pesticide fate and transport processes in paddy test systems. As a source of experimental data, a four-year comparative experiment in lysimeters and paddy fields was conducted using various paddy pesticides. First, the dissipations for various active ingredients in granule pesticides under submerged applications were statistically compared using simple kinetic modeling. Second, the dissipation pathways, unobserved experimental components, and effect of the experimental setting were evaluated using a higher tier mathematical model with a novel inverse analysis protocol. Finally, owing to experimental constraints, the unobtainable parameters were extracted from the laboratory container test before being transferred to compare the outdoor experimental data under different formulation types.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"146-153"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/bd/1a/jps-47-3-J22-03.PMC9706284.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10378470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The uptake experiments with pesticides were performed to clarify differences among plant species, and the influence of growth stages and conditions on the uptake and translocation ability of pesticides. There were 2-10-fold differences among plant species in the root and shoot concentrations of each pesticide, and shoot concentrations of pesticides in Brassica rapa L. var. perviridis were relatively high. In addition, the changes in shoot concentrations with growth stage of B. rapa were affected by root system development. The influence of temperature on uptake and translocation ability differed for each pesticide, while uptake and translocation ability were high for short day lengths. This indicated that plant uptake and translocation of pesticides were affected by root system development and growth conditions such as temperature and day length, not only the relationships to the chemical's properties and behavior of organic chemicals in the soil.
{"title":"Studies on the abilities of uptake and translocation from root to shoot of pesticides in soil.","authors":"Sayuri Namiki","doi":"10.1584/jpestics.J22-01","DOIUrl":"https://doi.org/10.1584/jpestics.J22-01","url":null,"abstract":"<p><p>The uptake experiments with pesticides were performed to clarify differences among plant species, and the influence of growth stages and conditions on the uptake and translocation ability of pesticides. There were 2-10-fold differences among plant species in the root and shoot concentrations of each pesticide, and shoot concentrations of pesticides in <i>Brassica rapa</i> L. var. <i>perviridis</i> were relatively high. In addition, the changes in shoot concentrations with growth stage of <i>B. rapa</i> were affected by root system development. The influence of temperature on uptake and translocation ability differed for each pesticide, while uptake and translocation ability were high for short day lengths. This indicated that plant uptake and translocation of pesticides were affected by root system development and growth conditions such as temperature and day length, not only the relationships to the chemical's properties and behavior of organic chemicals in the soil.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"131-138"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fa/a1/jps-47-3-J22-01.PMC9706277.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10378474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-20DOI: 10.1584/jpestics.D22-017
Zhongzhong Yan, Zihui Yang, Longjian Qiu, Yan Chen, Aijun Li, Taopeng Chang, Xinzhe Niu, Jingyan Zhu, Shihao Wu, Feng Jin
Fifteen novel pyridine carboxamide derivatives bearing a diarylamine-modified scaffold were designed, synthesized, and their antifungal activity was evaluated. Preliminary bioassay results showed that some of the synthesized compounds exhibited moderate to good in vitro antifungal activity. Further, compound 6-chloro-N-(2-(phenylamino)phenyl)nicotinamide (3f) displayed good in vivo antifungal activity against Botrytis cinerea. The enzymatic test on B. cinerea succinate dehydrogenase (SDH) showed that the inhibitory activity possessed by compound 3f equally matches that of thifluzamide. Molecular docking results demonstrated that compound 3f could commendably dock with the active site of SDH via stable hydrogen bonds and hydrophobic interactions, suggesting the possible binding modes of the title compounds with SDH. The results above revealed that the target compounds would be the leading fungicide compound for further investigation.
设计、合成了15种新型二芳胺修饰吡啶羧胺衍生物,并对其抗真菌活性进行了评价。初步的生物试验结果表明,部分合成的化合物具有中等到良好的体外抗真菌活性。此外,化合物6-氯- n -(2-(苯基氨基)苯基)烟酰胺(3f)在体内对灰霉病菌具有良好的抗真菌活性。酶学试验表明,化合物3f对葡萄球菌琥珀酸脱氢酶(SDH)的抑制活性与硫氟唑胺相当。分子对接结果表明,化合物3f可以通过稳定的氢键和疏水相互作用与SDH活性位点很好地对接,提示了标题化合物与SDH可能的结合方式。上述结果表明,目标化合物将是进一步研究的主要杀菌剂化合物。
{"title":"Discovery of novel pyridine carboxamides with antifungal activity as potential succinate dehydrogenase inhibitors.","authors":"Zhongzhong Yan, Zihui Yang, Longjian Qiu, Yan Chen, Aijun Li, Taopeng Chang, Xinzhe Niu, Jingyan Zhu, Shihao Wu, Feng Jin","doi":"10.1584/jpestics.D22-017","DOIUrl":"https://doi.org/10.1584/jpestics.D22-017","url":null,"abstract":"<p><p>Fifteen novel pyridine carboxamide derivatives bearing a diarylamine-modified scaffold were designed, synthesized, and their antifungal activity was evaluated. Preliminary bioassay results showed that some of the synthesized compounds exhibited moderate to good <i>in vitro</i> antifungal activity. Further, compound 6-chloro-<i>N</i>-(2-(phenylamino)phenyl)nicotinamide (<b>3f</b>) displayed good <i>in vivo</i> antifungal activity against <i>Botrytis cinerea</i>. The enzymatic test on <i>B. cinerea</i> succinate dehydrogenase (SDH) showed that the inhibitory activity possessed by compound <b>3f</b> equally matches that of thifluzamide. Molecular docking results demonstrated that compound <b>3f</b> could commendably dock with the active site of SDH <i>via</i> stable hydrogen bonds and hydrophobic interactions, suggesting the possible binding modes of the title compounds with SDH. The results above revealed that the target compounds would be the leading fungicide compound for further investigation.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"118-124"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e0/89/jps-47-3-D22-017.PMC9706280.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10378471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Parasitic plants in the Orobanchaceae family include devastating weed species, such as Striga, Orobanche, and Phelipanche, which parasitize major crops, drastically reduces crop yields and cause economic losses of over a billion US dollars worldwide. Advances in basic research on molecular and cellular processes responsible for parasitic relationships has now achieved steady progress through advances in genome analysis, biochemical analysis and structural biology. On the basis of these advances it is now possible to develop chemicals that control parasitism and reduce agricultural damage. In this review we summarized the recent development of chemicals that can control each step of parasitism from strigolactone biosynthesis in host plants to haustorium formation.
{"title":"Emerging technologies for the chemical control of root parasitic weeds.","authors":"Kojiro Kawada, Tomoyuki Koyama, Ikuo Takahashi, Hidemitsu Nakamura, Tadao Asami","doi":"10.1584/jpestics.D22-045","DOIUrl":"https://doi.org/10.1584/jpestics.D22-045","url":null,"abstract":"<p><p>Parasitic plants in the Orobanchaceae family include devastating weed species, such as <i>Striga</i>, <i>Orobanche</i>, and <i>Phelipanche</i>, which parasitize major crops, drastically reduces crop yields and cause economic losses of over a billion US dollars worldwide. Advances in basic research on molecular and cellular processes responsible for parasitic relationships has now achieved steady progress through advances in genome analysis, biochemical analysis and structural biology. On the basis of these advances it is now possible to develop chemicals that control parasitism and reduce agricultural damage. In this review we summarized the recent development of chemicals that can control each step of parasitism from strigolactone biosynthesis in host plants to haustorium formation.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"101-110"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/39/de/jps-47-3-D22-045.PMC9706279.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10371196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biological soil disinfestation (BSD) is biotechnology to control soil-borne plant pathogens based on the anaerobic-reducing environment in soil and the functions of indigenous microbes. A new sustainable agricultural technology, the GET system, which produces and recovers methane as renewable energy from paddy fields, has a structure and principles similar to those of BSD technology. To confirm the potential of the GET system as BSD technology, the microbial community structures in the GET system were analyzed using next-generation sequencing. Thirty-four phyla were detected: 31 bacterial and 3 archaeal. Firmicutes dominated during the experimental period, which plays an important role in BSD functions such as organic decomposition, nitrate removal, and soil-borne pathogen elimination. The ability of the GET system to control soil-borne pathogens as well as produce renewable energy was demonstrated.
土壤生物消毒(BSD)是一种基于土壤中的厌氧还原环境和本地微生物的功能来控制土传植物病原体的生物技术。一种新的可持续农业技术,即 GET 系统,可从稻田中生产和回收甲烷作为可再生能源,其结构和原理与 BSD 技术相似。为了证实 GET 系统作为 BSD 技术的潜力,我们使用新一代测序技术分析了 GET 系统中的微生物群落结构。共检测到 34 个门类:31 个细菌门和 3 个古细菌门。在实验期间,固着菌占主导地位,在有机物分解、硝酸盐去除和土传病原体消除等 BSD 功能中发挥着重要作用。GET 系统在控制土传病原体和生产可再生能源方面的能力得到了证明。
{"title":"Biological soil disinfestation compatible with renewable energy production for sustainable agriculture.","authors":"Shaohua Chen, Tatsuya Hirano, Yoshiaki Hayashi, Hiroto Tamura","doi":"10.1584/jpestics.D22-010","DOIUrl":"10.1584/jpestics.D22-010","url":null,"abstract":"<p><p>Biological soil disinfestation (BSD) is biotechnology to control soil-borne plant pathogens based on the anaerobic-reducing environment in soil and the functions of indigenous microbes. A new sustainable agricultural technology, the GET system, which produces and recovers methane as renewable energy from paddy fields, has a structure and principles similar to those of BSD technology. To confirm the potential of the GET system as BSD technology, the microbial community structures in the GET system were analyzed using next-generation sequencing. Thirty-four phyla were detected: 31 bacterial and 3 archaeal. <i>Firmicutes</i> dominated during the experimental period, which plays an important role in BSD functions such as organic decomposition, nitrate removal, and soil-borne pathogen elimination. The ability of the GET system to control soil-borne pathogens as well as produce renewable energy was demonstrated.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"111-117"},"PeriodicalIF":1.5,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ee/bb/jps-47-3-D22-010.PMC9706286.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10371201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Atsushi Nagamatsu, Ken Ueda, Ryuji Tamai, Shinki Tani, Shunsuke Yamamoto
Fenquinotrione is a novel rice herbicide that was discovered and developed by Kumiai Chemical Industry Co., Ltd. It can control a wide range of broadleaf and sedge weeds with excellent rice selectivity at 30 g a.i./10 a and is as effective as the wild type on acetolactate synthase inhibitor-resistant weeds. Our metabolic and molecular biological studies showed that CYP81A6-mediated demethylation and subsequent glucose conjugation are responsible for the safety of fenquinotrione in rice. Fenquinotrione was registered in Japan in 2018, and various products containing fenquinotrione have been launched. With its high efficacy and excellent rice selectivity, we believe that fenquinotrione will contribute to efficient food production in the future.
{"title":"Development of a rice herbicide, fenquinotrione.","authors":"Atsushi Nagamatsu, Ken Ueda, Ryuji Tamai, Shinki Tani, Shunsuke Yamamoto","doi":"10.1584/jpestics.J22-02","DOIUrl":"https://doi.org/10.1584/jpestics.J22-02","url":null,"abstract":"<p><p>Fenquinotrione is a novel rice herbicide that was discovered and developed by Kumiai Chemical Industry Co., Ltd. It can control a wide range of broadleaf and sedge weeds with excellent rice selectivity at 30 g a.i./10 a and is as effective as the wild type on acetolactate synthase inhibitor-resistant weeds. Our metabolic and molecular biological studies showed that CYP81A6-mediated demethylation and subsequent glucose conjugation are responsible for the safety of fenquinotrione in rice. Fenquinotrione was registered in Japan in 2018, and various products containing fenquinotrione have been launched. With its high efficacy and excellent rice selectivity, we believe that fenquinotrione will contribute to efficient food production in the future.</p>","PeriodicalId":16712,"journal":{"name":"Journal of Pesticide Science","volume":"47 3","pages":"139-145"},"PeriodicalIF":2.4,"publicationDate":"2022-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6c/d9/jps-47-3-J22-02.PMC9706282.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10378472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}