Andrea Zabiák, András Csótó, Beáta Tóth, Ferenc Takács, Károly Pál, Erzsébet Sándor
Abstract The acreage of English walnut ( Juglans regia L.) is constantly expanding in Hungary, due to the favorable climatic conditions and economic importance. Last years, serious damage was reported from several orchards with high percentage of rotted, moldy kernels. The aim of this research was to identify the pathogens at different growth stages. Fungi were cultured from the spotty, shriveled and rotted kernels, and monosporic isolates were identified based on morphological characters and molecular markers (ITS region and tef1 locus sequences). Botryosphaeria dothidea and Diaporthe eres were identified in high proportion from symptomatic kernels. These species were also isolated from different parts of walnut trees in different seasons. D. eres was detected in a high proportion from asymptomatic buds in March, while the presence of both species was observed in symptomatic husks with Overnight Freezing-Incubation Technique (ONFIT) in June. Their optimal growth temperature defined to be between 20–25 °C, and the growth of D. eres isolates was completely inhibited at 35 °C.
{"title":"Identification of Botryosphaeria dothidea and Diaporthe eres from rotted walnut fruits and other plant parts in different phenological stages","authors":"Andrea Zabiák, András Csótó, Beáta Tóth, Ferenc Takács, Károly Pál, Erzsébet Sándor","doi":"10.1556/038.2023.00193","DOIUrl":"https://doi.org/10.1556/038.2023.00193","url":null,"abstract":"Abstract The acreage of English walnut ( Juglans regia L.) is constantly expanding in Hungary, due to the favorable climatic conditions and economic importance. Last years, serious damage was reported from several orchards with high percentage of rotted, moldy kernels. The aim of this research was to identify the pathogens at different growth stages. Fungi were cultured from the spotty, shriveled and rotted kernels, and monosporic isolates were identified based on morphological characters and molecular markers (ITS region and tef1 locus sequences). Botryosphaeria dothidea and Diaporthe eres were identified in high proportion from symptomatic kernels. These species were also isolated from different parts of walnut trees in different seasons. D. eres was detected in a high proportion from asymptomatic buds in March, while the presence of both species was observed in symptomatic husks with Overnight Freezing-Incubation Technique (ONFIT) in June. Their optimal growth temperature defined to be between 20–25 °C, and the growth of D. eres isolates was completely inhibited at 35 °C.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":"114 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135138055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Potato mulching practices and their effects often differ, and the results are sometimes contradictory in the literature, as they vary depending on climatic conditions and growing practices. In this study, we analysed 68 peer-reviewed publications to reveal which problems of potato cultivation were intended to be solved by mulching with organic materials. We have found that the main goals of mulching are the preservation of soil moisture, the reduction of soil temperature, and the suppression of weeds, in which mulching provides effective help. In different parts of the world, different organic mulches increased the yield of potatoes in 78% of the studies. Although the occurrence and damage of pests, pathogens and weeds are extremely understudied (16, 18, 29% of the studies), we can conclude that organic mulches effectively reduced their damage.
{"title":"Potato (Solanum tuberosum L.) soil covering with organic matter: Results and knowledge gap","authors":"Anikó Südiné Fehér, György Turóczi, Ferenc Tóth","doi":"10.1556/038.2023.00181","DOIUrl":"https://doi.org/10.1556/038.2023.00181","url":null,"abstract":"Abstract Potato mulching practices and their effects often differ, and the results are sometimes contradictory in the literature, as they vary depending on climatic conditions and growing practices. In this study, we analysed 68 peer-reviewed publications to reveal which problems of potato cultivation were intended to be solved by mulching with organic materials. We have found that the main goals of mulching are the preservation of soil moisture, the reduction of soil temperature, and the suppression of weeds, in which mulching provides effective help. In different parts of the world, different organic mulches increased the yield of potatoes in 78% of the studies. Although the occurrence and damage of pests, pathogens and weeds are extremely understudied (16, 18, 29% of the studies), we can conclude that organic mulches effectively reduced their damage.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136032489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Josepha El Chami, Elias El Chami, Ákos Tarnawa, Katalin Maria Kassai, Zoltán Kende, Márton Jolánkai
Abstract Wheat is a cereal of special importance in the world cereal production. Fusarium head blight is one of the most important diseases of wheat caused by phytopathogenic Fusarium species that significantly reduce wheat production. This disease reduces grain yield and quality and causes the presence of harmful mycotoxins. The purpose of this study is to test the effect of Fusarium infection on wheat quality parameters in two wheat varieties Alföld and Mv Karéj. The results showed that Fusarium infection was higher in 2021 (91.47% and 95.20%) compared to 2020 (44.33% and 40.27%) in the two wheat varieties used Alföld and Mv Karéj respectively. In Alföld, Fusarium infection had a negative effect on protein content, test weight, thousand kernel weight, gluten content and Zeleny sedimentation index, whereas falling number was not affected. In Mv Karéj, Fusarium infection had a negative effect on test weight, thousand kernel weight, falling number and Zeleny sedimentation index, whereas protein content and gluten content were not affected. Although Fusarium infection reduced wheat quality, Mv Karéj showed a stable protein and gluten content whereas Alföld showed a stable falling number. Thus, Mv Karéj is more tolerant to Fusarium infection compared to Alföld.
小麦是世界谷物生产中具有特殊重要地位的谷物。赤霉病是由植物致病性赤霉病引起的小麦主要病害之一，严重影响小麦产量。此病降低粮食产量和质量，并造成有害真菌毒素的存在。本研究的目的是研究镰刀菌侵染对Alföld和Mv kar 3个小麦品种小麦品质参数的影响。结果表明:Alföld和Mv karkarij小麦品种2021年镰刀菌侵染率分别为91.47%和95.20%，高于2020年的44.33%和40.27%;在Alföld中，镰刀菌侵染对蛋白质含量、试重、千粒重、面筋含量和Zeleny沉降指数均有负面影响，而对落粒数无影响。镰刀菌侵染对甘薯的试重、千粒重、落粒数和Zeleny沉降指数均有显著影响，而对蛋白质含量和面筋含量无显著影响。虽然镰刀菌感染降低了小麦品质，但Mv kar的蛋白质和面筋含量稳定，而Alföld的蛋白质和面筋含量稳定下降。因此，与Alföld相比，Mv kar对镰刀菌感染的耐受性更强。
{"title":"Influence of Fusarium head blight on technological quality of wheat","authors":"Josepha El Chami, Elias El Chami, Ákos Tarnawa, Katalin Maria Kassai, Zoltán Kende, Márton Jolánkai","doi":"10.1556/038.2023.00179","DOIUrl":"https://doi.org/10.1556/038.2023.00179","url":null,"abstract":"Abstract Wheat is a cereal of special importance in the world cereal production. Fusarium head blight is one of the most important diseases of wheat caused by phytopathogenic Fusarium species that significantly reduce wheat production. This disease reduces grain yield and quality and causes the presence of harmful mycotoxins. The purpose of this study is to test the effect of Fusarium infection on wheat quality parameters in two wheat varieties Alföld and Mv Karéj. The results showed that Fusarium infection was higher in 2021 (91.47% and 95.20%) compared to 2020 (44.33% and 40.27%) in the two wheat varieties used Alföld and Mv Karéj respectively. In Alföld, Fusarium infection had a negative effect on protein content, test weight, thousand kernel weight, gluten content and Zeleny sedimentation index, whereas falling number was not affected. In Mv Karéj, Fusarium infection had a negative effect on test weight, thousand kernel weight, falling number and Zeleny sedimentation index, whereas protein content and gluten content were not affected. Although Fusarium infection reduced wheat quality, Mv Karéj showed a stable protein and gluten content whereas Alföld showed a stable falling number. Thus, Mv Karéj is more tolerant to Fusarium infection compared to Alföld.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Souhila Boubetra, Bilal Yahiaoui, A. Lehad, Moussa Mokhtari, R. H. Boudchicha, F. Mohammedi, Roza Assous, M. Louanchi
Cereals are prone to viral infections and the economic impact of these has increased in recent years. Among these diseases barley yellow dwarf (BYD) is one of the most destructive diseases of cereals today. For three consecutive years (2014–2015–2016) surveys were carried out in order to search for BYDV species (BYDV-PAV and -MAV) as well as other cereal viruses, wheat spindle streak mosaic virus (WSSMV), southern bean mosaic virus (SBMV) and barley stripe mosaic virus (BSMV) in seven regions of Algeria (Algiers, Boumerdes, Tipaza Médéa, Adrar, Khenchla and Batna).Targeted samples were taken randomly from plants of different cereal species (wheat, barley, oats). The sample were analyzed by DAS-ELISA and RT-PCR.The results of ELISA and PCR tests showed the presence of BYDV-PAV in barley, durum wheat, soft wheat and oats. Thus, this viral species were found in all the cereal regions surveyed (North, South, East and West).Seven samples (durum wheat, barley and oats) were sequenced and phylogenetic analyses performed revealed that the Algerian sequences clustered in group I and group II.
{"title":"Occurrence and diversity of barley yellow dwarf virus in Algeria","authors":"Souhila Boubetra, Bilal Yahiaoui, A. Lehad, Moussa Mokhtari, R. H. Boudchicha, F. Mohammedi, Roza Assous, M. Louanchi","doi":"10.1556/038.2023.00172","DOIUrl":"https://doi.org/10.1556/038.2023.00172","url":null,"abstract":"Cereals are prone to viral infections and the economic impact of these has increased in recent years. Among these diseases barley yellow dwarf (BYD) is one of the most destructive diseases of cereals today. For three consecutive years (2014–2015–2016) surveys were carried out in order to search for BYDV species (BYDV-PAV and -MAV) as well as other cereal viruses, wheat spindle streak mosaic virus (WSSMV), southern bean mosaic virus (SBMV) and barley stripe mosaic virus (BSMV) in seven regions of Algeria (Algiers, Boumerdes, Tipaza Médéa, Adrar, Khenchla and Batna).Targeted samples were taken randomly from plants of different cereal species (wheat, barley, oats). The sample were analyzed by DAS-ELISA and RT-PCR.The results of ELISA and PCR tests showed the presence of BYDV-PAV in barley, durum wheat, soft wheat and oats. Thus, this viral species were found in all the cereal regions surveyed (North, South, East and West).Seven samples (durum wheat, barley and oats) were sequenced and phylogenetic analyses performed revealed that the Algerian sequences clustered in group I and group II.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46776986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Barbara Katalin Szabó, Klaudia Dóra Molnár, Sára Dóra Vlaskality, K. Körösi
In our study, we examined mycotoxin-producing fungi found in sorghum grains (Sorghum bicolor L. Moench). During the experiment, the internal infection of grains was examined on 3 different selective culture media, as individual literature differs as to which selective culture media are the most suitable for the isolation of Fusarium species under laboratory conditions (Leslie and Summerell, 2006). During our experiments, we also used molecular methods to identify the selected Fusarium species down to the species level. In the case of Fusarium species our experiment shows that the best media is Nash & Snyder media. During the morphological identification we worked with 18 Fusarium monosporal cultures and we detected Fusarium avenaceum.
在我们的研究中，我们检测了在高粱籽粒(sorghum bicolor L. Moench)中发现的产霉菌毒素真菌。在实验中，我们在3种不同的选择培养基上检测了谷物的内部侵染情况，因为在实验室条件下哪种选择培养基最适合分离镰刀菌(Leslie and Summerell, 2006)。在实验过程中，我们还利用分子方法对选定的镰刀菌进行了物种鉴定。就镰刀菌而言，我们的实验表明，最好的培养基是纳什&斯奈德培养基。在形态鉴定过程中，我们对18株单孢镰刀菌培养物进行了鉴定，并检测到avenaceum镰刀菌。
{"title":"Occurring Fusarium spp. in sorghum (Sorghum bicolor L. Moench) grains","authors":"Barbara Katalin Szabó, Klaudia Dóra Molnár, Sára Dóra Vlaskality, K. Körösi","doi":"10.1556/038.2023.00168","DOIUrl":"https://doi.org/10.1556/038.2023.00168","url":null,"abstract":"In our study, we examined mycotoxin-producing fungi found in sorghum grains (Sorghum bicolor L. Moench). During the experiment, the internal infection of grains was examined on 3 different selective culture media, as individual literature differs as to which selective culture media are the most suitable for the isolation of Fusarium species under laboratory conditions (Leslie and Summerell, 2006). During our experiments, we also used molecular methods to identify the selected Fusarium species down to the species level. In the case of Fusarium species our experiment shows that the best media is Nash & Snyder media. During the morphological identification we worked with 18 Fusarium monosporal cultures and we detected Fusarium avenaceum.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42000162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reviews of the recent progress in the acarological researches and knowledge on mites occurring in the canopy of ornamental trees and shrubs. The inventory of Acari includes 444 mite species belonging to 33 families which were recorded from 283 hardwood tree and shrub species of 45 plant families. The highest number of mite families and species were reported from the families Rosaceae (21 mite families), Salicaceae (20) and Oleaceae (17), and Salicaceae (99 mite species), Rosaceae (98) and Fagaceae (63), respectively. The most diverse acarine fauna was found on Acer campestre (37 mite species), Prunus spinosa (37), Acer pseudoplatanus (33), Tilia cordata (33) and Salix alba (31). The most frequently occurring mite species were Euseius finlandicus (on 78 host species), Tydeus californicus (64) and Zetzellia mali (60).
{"title":"Diversity of acarine fauna (Acari: Parasitiformes, Acariformes) inhabiting ornamental trees and shrubs in Hungary: A review","authors":"G. Ripka","doi":"10.1556/038.2023.00189","DOIUrl":"https://doi.org/10.1556/038.2023.00189","url":null,"abstract":"This paper reviews of the recent progress in the acarological researches and knowledge on mites occurring in the canopy of ornamental trees and shrubs. The inventory of Acari includes 444 mite species belonging to 33 families which were recorded from 283 hardwood tree and shrub species of 45 plant families. The highest number of mite families and species were reported from the families Rosaceae (21 mite families), Salicaceae (20) and Oleaceae (17), and Salicaceae (99 mite species), Rosaceae (98) and Fagaceae (63), respectively. The most diverse acarine fauna was found on Acer campestre (37 mite species), Prunus spinosa (37), Acer pseudoplatanus (33), Tilia cordata (33) and Salix alba (31). The most frequently occurring mite species were Euseius finlandicus (on 78 host species), Tydeus californicus (64) and Zetzellia mali (60).","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43117577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
All known trachyuropodid mites (Acari: Uropodina: Trachyuropodidae) are listed together with diagnoses of the family Trachyuropodidae and trachyuropodid genera. A new illustrated key to trachyuropodid genera is also presented. The second species of the genus Trachyibana (T. kozari sp. nov.) is described and illustrated from Singapore. Forty eight new combinations are also presented: Arculatatrachys darwini (Kontschán and Starý, 2013) comb. nov.; Arculatatrachys newtoni (Kontschán, 2010) comb. nov.; Bostocktrachys berlesesellnickia (Hirschmann, 1976) comb. nov.; B. extremica (Kontschán and Starý, 2013) comb. nov.; B. kiewensis (Hirschmann, 1976) comb. nov.; B. myrmecophila (Wiśniewski and Hirschmann, 1992) comb. nov.; B. plagiata (Hirschmann, 1976) comb. nov.; B. zicsii (Hirschmann, 1976) comb. nov.; Castritrachys quadriauricularia (Hirschmann, 1976) comb. nov.; Cristicepstrachys sinuata (Berlese, 1904) comb. nov.; Cephalojanetia multituberculata (Hirschmann, 1976) comb nov.; C. tuberosa (Hirschmann, 1976) comb. nov.; C. dentata (Kontschán, 2007) comb. nov.; Cephalouropoda alapaducta (Hirschmann, 1976) comb. nov.; Excavatatrachys auricularia (Costa, 1962) comb. nov.; E. longicornuta (Hirschmann, 1976) comb. nov.; E. longicornutasimilis (Hirschmann, 1976) comb. nov.; E. poppi (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; E. quadricornuta (Hirschmann, 1976) comb. nov.; E. sellnicki (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; Graecatrachys bali (Kontschán and Starý, 2013) comb. nov.; G. endrodyi (Hirschmann, 1976) comb. nov.; G. ghanaensis (Hirschmann, 1976) comb. nov.; G. mesofovea (Hirschmann, 1976) comb. nov.; G. mesofoveasimilis (Hirschmann, 1976) comb. nov.; G. represa (Hirschmann, 1976) comb. nov.; G. rufipes (Hirschmann, 1976) comb nov.; Magnatrachys dacica (Huţu, 1973) comb. nov.; M. imperforata (Berlese, 1904) comb. nov.; M. mexicana (Hirschmann, 1976) comb. nov.; M. pecinai (Hirschmann, 1976) comb. nov.; M. schusteri (Hirschmann, 1976) comb. nov.; M. schusterisimilis (Hirschmann, 1976) comb. nov.; Trogulotrachys ablesi (Hirschmann, 1976) comb. nov.; T. celtica (Halbert, 1907) comb. nov.; T. hirschmanni (Pecina, 1980) comb. nov.; T. kinsella (Kontschán et al., 2010) comb. nov.; T. michaeli (Ewing, 1909) comb. nov.; T. wasmanniana (Berlese, 1903) comb. nov.; T. willmanni (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; Urojanetia baloghi (Hirschmann, 1976) comb. nov.; U. baloghisimilis (Hirschmann, 1976) comb. nov.; U. belunensis (Lombardini, 1962) comb. nov.; U. hexaspinosa (Hirschmann, 1976) comb. nov.; U. mahunkai (Hirschmann, 1976) comb. nov.; U. similicoccinea (Hiramatsu, 1979) comb. nov.; Urotrachytes formicariasimilis (Hirschmann, 1975) comb. nov.; and Ur. ponticuli (Karg, 1989) comb. nov.
{"title":"Catalogue of trachyuropodid mites (Acari: Mesostigmata: Uropodina: Trachyuropodidae) of the world, with the description of Trachyibana kozari n. sp. from Singapore","authors":"J. Kontschán, S. Ermilov","doi":"10.1556/038.2023.00183","DOIUrl":"https://doi.org/10.1556/038.2023.00183","url":null,"abstract":"All known trachyuropodid mites (Acari: Uropodina: Trachyuropodidae) are listed together with diagnoses of the family Trachyuropodidae and trachyuropodid genera. A new illustrated key to trachyuropodid genera is also presented. The second species of the genus Trachyibana (T. kozari sp. nov.) is described and illustrated from Singapore. Forty eight new combinations are also presented: Arculatatrachys darwini (Kontschán and Starý, 2013) comb. nov.; Arculatatrachys newtoni (Kontschán, 2010) comb. nov.; Bostocktrachys berlesesellnickia (Hirschmann, 1976) comb. nov.; B. extremica (Kontschán and Starý, 2013) comb. nov.; B. kiewensis (Hirschmann, 1976) comb. nov.; B. myrmecophila (Wiśniewski and Hirschmann, 1992) comb. nov.; B. plagiata (Hirschmann, 1976) comb. nov.; B. zicsii (Hirschmann, 1976) comb. nov.; Castritrachys quadriauricularia (Hirschmann, 1976) comb. nov.; Cristicepstrachys sinuata (Berlese, 1904) comb. nov.; Cephalojanetia multituberculata (Hirschmann, 1976) comb nov.; C. tuberosa (Hirschmann, 1976) comb. nov.; C. dentata (Kontschán, 2007) comb. nov.; Cephalouropoda alapaducta (Hirschmann, 1976) comb. nov.; Excavatatrachys auricularia (Costa, 1962) comb. nov.; E. longicornuta (Hirschmann, 1976) comb. nov.; E. longicornutasimilis (Hirschmann, 1976) comb. nov.; E. poppi (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; E. quadricornuta (Hirschmann, 1976) comb. nov.; E. sellnicki (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; Graecatrachys bali (Kontschán and Starý, 2013) comb. nov.; G. endrodyi (Hirschmann, 1976) comb. nov.; G. ghanaensis (Hirschmann, 1976) comb. nov.; G. mesofovea (Hirschmann, 1976) comb. nov.; G. mesofoveasimilis (Hirschmann, 1976) comb. nov.; G. represa (Hirschmann, 1976) comb. nov.; G. rufipes (Hirschmann, 1976) comb nov.; Magnatrachys dacica (Huţu, 1973) comb. nov.; M. imperforata (Berlese, 1904) comb. nov.; M. mexicana (Hirschmann, 1976) comb. nov.; M. pecinai (Hirschmann, 1976) comb. nov.; M. schusteri (Hirschmann, 1976) comb. nov.; M. schusterisimilis (Hirschmann, 1976) comb. nov.; Trogulotrachys ablesi (Hirschmann, 1976) comb. nov.; T. celtica (Halbert, 1907) comb. nov.; T. hirschmanni (Pecina, 1980) comb. nov.; T. kinsella (Kontschán et al., 2010) comb. nov.; T. michaeli (Ewing, 1909) comb. nov.; T. wasmanniana (Berlese, 1903) comb. nov.; T. willmanni (Hirschmann and Zirngiebl-Nicol, 1969) comb. nov.; Urojanetia baloghi (Hirschmann, 1976) comb. nov.; U. baloghisimilis (Hirschmann, 1976) comb. nov.; U. belunensis (Lombardini, 1962) comb. nov.; U. hexaspinosa (Hirschmann, 1976) comb. nov.; U. mahunkai (Hirschmann, 1976) comb. nov.; U. similicoccinea (Hiramatsu, 1979) comb. nov.; Urotrachytes formicariasimilis (Hirschmann, 1975) comb. nov.; and Ur. ponticuli (Karg, 1989) comb. nov.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45035894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rachid Ladjouzi̇, M. Bachir-bey, F. Zaidi, R. Yahiaoui-zaidi
Pectobacteriaceae are plant pathogens responsible for serious diseases on many crops of interest including potato. Currently, regarding the several disadvantages of conventional control by chemicals, the application of bio-agents as alternatives is increasingly being explored. The present investigation was conducted in order to evaluate the antibacterial activity of the fungal strain Trichoderma asperellum T34 as an antagonist against phytopathogen Dickeya solani on tubers of three potato varieties (Agata, Monalisa, and Picobello). For this, half-tubers were inoculated by T34 suspension with concentrations of 103 and 105 cells mL−1 at 6, 9, and 12 h before bacterial infection (D. solani at concentrations of 107 and 108 cfu mL−1). The results of infection assays without the antagonist indicated that Picobello variety was the least sensitive to soft rot, Monalisa and Agata varieties showed medium and high sensitivity, respectively. The antagonism assays revealed strong antibacterial activities, manifested by the regression of softened tissues gradually with the time of preincubation with T34, leading to a complete disappearance of disease symptoms using 12 h. Hence, the application of antagonistic Trichoderma strains as antimicrobial agents in the control of harmful plant pathogens is a subject of great interest and can be considered a promising strategy to handle soft rot diseases.
{"title":"Biological control of soft rot induced by Dickeya solani with Trichoderma asperellum on potato tubers: Relationship with susceptibility of variety","authors":"Rachid Ladjouzi̇, M. Bachir-bey, F. Zaidi, R. Yahiaoui-zaidi","doi":"10.1556/038.2023.00150","DOIUrl":"https://doi.org/10.1556/038.2023.00150","url":null,"abstract":"Pectobacteriaceae are plant pathogens responsible for serious diseases on many crops of interest including potato. Currently, regarding the several disadvantages of conventional control by chemicals, the application of bio-agents as alternatives is increasingly being explored. The present investigation was conducted in order to evaluate the antibacterial activity of the fungal strain Trichoderma asperellum T34 as an antagonist against phytopathogen Dickeya solani on tubers of three potato varieties (Agata, Monalisa, and Picobello). For this, half-tubers were inoculated by T34 suspension with concentrations of 103 and 105 cells mL−1 at 6, 9, and 12 h before bacterial infection (D. solani at concentrations of 107 and 108 cfu mL−1). The results of infection assays without the antagonist indicated that Picobello variety was the least sensitive to soft rot, Monalisa and Agata varieties showed medium and high sensitivity, respectively. The antagonism assays revealed strong antibacterial activities, manifested by the regression of softened tissues gradually with the time of preincubation with T34, leading to a complete disappearance of disease symptoms using 12 h. Hence, the application of antagonistic Trichoderma strains as antimicrobial agents in the control of harmful plant pathogens is a subject of great interest and can be considered a promising strategy to handle soft rot diseases.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44175995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Germalus kozari sp. nov. (Hemiptera: Heteroptera: Lygaeoidea: Geocoridae) is now described. Comparative notes, keys, diagnoses, and distribution data to allied Indomalayan species is provided. Germalus greeni is reported for the first time from outside of India and Sri Lanka.
{"title":"Germalus kozari sp. nov.: Description of a new representative of big-eyed bugs from the Indomalayan Region with notes on allied species (Heteroptera: Lygaeoidea: Geocoridae)","authors":"P. Kóbor","doi":"10.1556/038.2023.00178","DOIUrl":"https://doi.org/10.1556/038.2023.00178","url":null,"abstract":"Germalus kozari sp. nov. (Hemiptera: Heteroptera: Lygaeoidea: Geocoridae) is now described. Comparative notes, keys, diagnoses, and distribution data to allied Indomalayan species is provided. Germalus greeni is reported for the first time from outside of India and Sri Lanka.","PeriodicalId":7136,"journal":{"name":"Acta Phytopathologica Et Entomologica Hungarica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45894051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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