Journal of plant science and phytopathology最新文献

{"title":"Serological and molecular characterization of two seed born cowpea mosaic Comovirus isolates affecting cowpea plants (Vigna unguiculata L.) in northern","authors":"MH Abd El-Aziz, H. Younes","doi":"10.29328/journal.jpsp.1001037","DOIUrl":"https://doi.org/10.29328/journal.jpsp.1001037","url":null,"abstract":"Bruening and Agrawal, [3]. Little work has been done on Cowpea mosaic comovirus (CPMV) in Egypt. It is one of the most commonly reported virus diseases of cowpea, which causes mosaic and decreases leaf area and lower production [4]. Symptoms induced by CPMV vary from light green mottle to distinct yellow mosaic, distortion of leaf, and premature death of the plant [5]. In our research detection of CPMV infecting cowpea in northern Egypt was based mainly on serological diagnosis and RT-PCR. The aims of this work were detection and isolation of CPMV affecting cowpea plants. Viral characterization included host range and symptomology, modes of transmission, sap infectivity tests, serological tests and nucleotide sequencing. Detection of CPMV isolate1 in various plant organs such as loral parts, pods, seed and seed parts showed positive results. Comparative studies for detection of CPMV by TBIA, DBIA, indirect ELISA and biological assay in infected plants were conducted after different periods of inoculation, and in serial dilutions of infected plant sap. Possibility of using alternative solid carriers instead of nitrocellulose membranes in TBIA and DBIA tests was determined using two faces of the solid carriers in TBIA test. Partial sequences of the virus isolates was registered in gene bank.","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43914547","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}

{"title":"Avermectins: The promising solution to control plant parasitic nematodes","authors":"M. Khalil, Dalia M Darwesh","doi":"10.29328/journal.jpsp.1001036","DOIUrl":"https://doi.org/10.29328/journal.jpsp.1001036","url":null,"abstract":"Plant parasitic nematodes (PPNs) considered a threat to crops production and are responsible for about US $173 billion annual losses in agriculture world [1]. Sometimes, PPNs are co-operating with other plant pathogens such as bacteria and fungi and cause complex diseases. Nematodes can damage all parts of their host plants, although according to their life style, individual species target the roots, stems, leaves, lowers, or seeds. There are about 31% of known species of nematodes are parasites of vertebrates [2], while 16% are parasites of plants, mostly soil-borne root pathogens [3]. Approximately 2.4% species of those parasites on plants are responsible for economically important phytoparasites of crops.","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44532653","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}

{"title":"Determination of anthocyanin content in two varieties of Hibiscus Sabdariffa from Selangor, Malaysia using a combination of chromatography and spectroscopy","authors":"Y. Choong, Nor Syaidatul Akmal Mohd Yousof, J. Jamal, Mohd Isa Wasiman","doi":"10.29328/JOURNAL.JPSP.1001034","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001034","url":null,"abstract":"Hibiscus sabdariffa, a famous herbal plant in Malaysia [1], belongs to the family Malvaceae and is locally known as “Roselle” [2]. It is an important annual crop grown successfully in tropical and sub-tropical climates [3]. Its leshy calyx (sepals) surrounding the fruit (capsules) have been used to produce a variety of beverages and commercial products. The therapeutic anti-obesity usage of H. sabdariffa has been well studied [4]. In fact, many signi icant evidences of H. sabdariffa in lowering deposition of fat in adipose tissue [5], have motivated the investigation. A study by Ojeda et Abstract","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44838143","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}

{"title":"Causal agents of Post-harvest Rot of Pumpkin (Cucurbita pepo L.) and their control using Indigenous Practices in Hong, Adamawa State","authors":"N. Kazi, I. B. Chimbekujwo, S. Anjili","doi":"10.29328/JOURNAL.JPSP.1001033","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001033","url":null,"abstract":"Pumpkin, one of the common names for lowering plants that belong to the Curcubitaceae family with four genera which include Curcubita maxima, Curcubita pepo, Curcubita moschata and Cucurbita mixta. They are characterized by spreading vines with showy yellow-orange lowers, large lobed leaves, long twisting tendrils and thick shell which contain the seeds and pulp [1]. They are grown all around the world for a variety of reasons ranging from agricultural purposes (such as animal feed) to commercial and ornamental purposes [2].","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47423321","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}

{"title":"Cloning and Characterization of a Pseudo-Response Regulator 7 (PRR7) Gene from Medicago Sativa Involved In Regulating the Circadian Clock","authors":"Yilin Shen, Wei-Qi Nian","doi":"10.29328/JOURNAL.JPSP.1001032","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001032","url":null,"abstract":"The plant lowering process represents the transition from vegetative to productive growth, and is controlled by complicated innergenetic regulation and the external environment. Flowering is closely related to the heading date and maturity crops, and has been studied for hundreds of years [1]. Currently, studies on Arabidopsis thaliana have revealed ive pathways, the vernalization, photoperiod, gibberellin, autonomous, and endogenous pathways [1]. Initially, it was discovered that day length, namely photoperiod, could be perceived by higher plants and impacted their lowering. Over these years, different models have been put forward to explain the relationship between lowering and photoperiod [2,3]. Recently, a growing number of genes have been characterized as effectors of the natural condition or internal regulatory network, which has enhanced our knowledge of the regulators mediating the lowering pathway and plant circadian clock.","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47875848","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}

{"title":"Non-chemical control of Armillaria mellea infection of Prunus persica","authors":"J. Downer, B. Faber","doi":"10.29328/JOURNAL.JPSP.1001031","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001031","url":null,"abstract":"Peaches, Prunus persica were planted as grafted saplings in an avocado orchard previously infested with Armillaria mellea (Vahl) P.Kumm. Trees were planted in large or small holes with or without fresh yardwaste chips added as an amendment and with or without a Trichoderma biocontrol product sprayed into the hole. Trees were monitored for six years -growth and mortality was tabulated. Six years later 40% of the trees had died from the disease. Trees planted in a large hole were more likely to survive than in a smaller hole (P=0.07) and trees in large holes with fresh organic matter added were the most likely to survive (P=0.04). Trichoderma sprays in the planting hole did not increase survival rates. While growth was initially retarded by adding fresh yardwaste to the hole, in later years none of the treatments affected growth rates. Research Article Non-chemical control of Armillaria mellea infection of Prunus persica Jim Downer* and Ben Faber University of California, Cooperative Extension, 669 County Square Drive Suite 100 Ventura CA, 93003, USA *Address for Correspondence: Jim Downer, University of California, Cooperative Extension, 669 County Square Drive Suite 100 Ventura CA, 93003, USA, Tel: 805 825 9081; Email: ajdowner@ucanr.edu Submitted: 17 June 2019 Approved: 03 July 2019 Published: 04 July 2019 Copyright: © 2019 Downer J, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44127977","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}

{"title":"Assessing the stand size of bay trees (Persea spp.) after exposure to laurel wilt disease in a North Florida Preserve","authors":"A. Rossi, Christopher Bentzien","doi":"10.29328/JOURNAL.JPSP.1001030","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001030","url":null,"abstract":"Although laurel wilt disease was fi rst reported in the United States in 2002 from redbay trees (Persea borbonia) around Savannah, Georgia it has rapidly spread throughout the southeastern coastal plain including Georgia and Florida. In the current study, transects were used to assess the spread and impact of the disease on two native bay trees redbay (P. borbonia) and swampbay (P. palustris) from north Florida in a semi-naturalized ecological preserve. Although tree size and mortality rates have been reported previously, this study provides the fi rst size-based static life tables for both species. While a signifi cantly higher percent (76%) of swampbay trees exhibited signs of laurel wilt disease compared to redbay trees (62%); redbay had more of its canopy damaged by the disease (41% vs. 32% for redbay vs. swampbay respectively); this resulted in a signifi cantly smaller stem diameter for P. borbonia compared to swampbay, both species are experiencing signifi cant declines due to the disease. Both species exhibited a Type III survivorship curve in which the vast majority of individuals were in the smallest size class (average stem diameter was only 2.5 and 3.6 cm for redbay and swampbay respectively). Although traditionally, population age (or size) structure that is heavily biased toward younger or smaller size classes suggests that the population is likely to expand in the future, for these bay trees high mortality rate due to beetle/fungal infestation of larger size classes is responsible for this trend; the smallest size classes are largely free from beetle infestation and laurel wilt disease because the stem diameter is likely insuffi cient to support beetle development. Results from this study suggest that swampbay is also highly susceptible to laurel wilt disease and its populations are likely to exhibit a similar (albeit slower) decline in Florida’s wetland and mesic ecosystems. Research Article Assessing the stand size of bay trees (Persea spp.) after exposure to laurel wilt disease in a North Florida Preserve Anthony M Rossi* and Christopher Bentzien Department of Biology, University of North Florida, Jacksonville, Florida, USA *Address for Correspondence: Anthony M Rossi, Department of Biology, University of North Florida, Jacksonville, Florida, 32224, USA, Tel: (904) 620-1934; (904)-620-2830; Email: arossi@unf.edu Submitted: 09 May 2019 Approved: 03 June 2019 Published: 04 June 2019 Copyright: © 2019 Rossi AM, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited How to cite this article: Rossi AM, Bentzien C. Assessing the stand size of bay trees (Persea spp.) after exposure to laurel wilt disease in a North Florida Preserve. J Plant Sci Phytopathol. 2019; 3: 042-049. https://doi.org/10.29328/journal.jpsp.1001030 Introduction Laurel wilt disease is a generally fatal ","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48271076","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}

{"title":"Asynchronous flowering in clonal seed orchards - An effective strategy for alternative management","authors":"S. Mondal, A. Srivastava, G. Joshi, HC Yashavantha Rao","doi":"10.29328/JOURNAL.JPSP.1001029","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001029","url":null,"abstract":"Tropical forests have long been of interest to biologists because of their high species diversity and their complicated patterns of community organization. The recent ecological studies which have demonstrated that tropical trees are diverse in their reproductive biology and dynamic population structure. Asynchronous fl owering among the clones in a clonal seed orchard is an inherent problem resulting in poor seed and fruit set in them. These results in the complete defeat of the prime objective of establishment of clonal seed orchards (CSOs) i.e. abundant quality seed production poor fl owering and asynchronous fl owering between the clones are a major bottleneck in higher seed set in these clonal seed orchards across the country. Asynchrony found between clones may be attributed to the origin of clones, which are collected from different zonal populations as revealed by isoenzyme and DNA markers studies. This article reviews the work done in CSOs across the world and suggests an alternate strategy in designing the clonal seed orchards of the future. Research Article Asynchronous fl owering in clonal seed orchards An effective strategy for alternative management Soma Mondal1,2*, Ashutosh Srivastava1, Geeta Joshi1 and HC Yashavantha Rao3 1Department of Tree Improvement and Genetics, Institute of Wood Science and Technology, Bengaluru, Karnataka-560003, India 2Department of Studies in Microbiology, Manasagangotri, University of Mysore, Mysore, Karnataka-570 006, India 3Department of Biochemistry, Indian Institute of Science, Bengaluru, Karnataka-560012, India *Address for Correspondence: Soma Mondal, Department of Tree Improvement and Genetics Division, Institute of Wood Science and Technology, Bangalore, Karnataka-560003, India, Email: kumar.soma@yahoo.com Submitted: 09 April 2019 Approved: 14 May 2019 Published: 15 May 2019 Copyright: © 2019 Mondal S, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41623637","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}

{"title":"Stability determination of candidate reference genes in cucumber plants subjected to stresses from Phytophthora melonis","authors":"Rui Wang, Du Hu, Qingmin Jin, Lin Yu'e, Yujuan Zhong, Chunpeng Yao, Xiaomei Xu, Tingquan Wu","doi":"10.29328/JOURNAL.JPSP.1001028","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001028","url":null,"abstract":"Stable reference genes are indispensable for ensuring the fi delity of determined gene expression levels. However, the expression levels of reference genes are unable to remain constant under all possible experimental conditions. Therefore, the stability determination of reference genes is necessary in an experimental system set. In the preset study, the stability of nine cucumber candidate reference genes (CsACT, CsUBQ, CsEF1α, CsCYP, CsαTU, CsCACS, CsTIP41, CsYSL8 and CsHEL) subjected to stresses from Phytophthora melonis (P. melonis) were determined using four different analysis methods, including Delta Ct, BestKeeper, NormFinder and GeNorm. The study results revealed that CsUBQ and CsCYP were the most stable genes suitable as internal control in cucumber plants under attack by P. melonis condition. Research Article Stability determination of candidate reference genes in cucumber plants subjected to stresses from Phytophthora melonis Rui Wang, Hu Du, Qingmin Jin, Yu’e Lin, Yujuan Zhong, Chunpeng Yao, Xiaomei Xu and Tingquan Wu* Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China *Address for Correspondence: Tingquan Wu, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/ Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China, Tel: +86 20 38469301; Email: tingquanwu@sina.com Submitted: 29 March 2019 Approved: 12 April 2019 Published: 15 April 2019 Copyright: © 2019 Wang R, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41355814","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}

{"title":"Evaluation of cold response in Ilex paraguariensis","authors":"Geisler Sandonaid Andrei, Argüelles Carina Francisca, Rojas Cristian Antonio","doi":"10.29328/JOURNAL.JPSP.1001026","DOIUrl":"https://doi.org/10.29328/JOURNAL.JPSP.1001026","url":null,"abstract":"Ilex paraguariensis, also known as ‘Yerba mate’, occurs naturally in Argentina, Brazil and Paraguay and is also grown in these countries with different intensities. Leaves and branches of this plant are used in the preparation of a stimulant beverage that beside social importance has notorious health impact. However, the cultivated herbs present low productivity, due to defi ciencies in cultivation and harvesting techniques, as well as due to the abiotic stresses that this species is subject to. The discovery and characterization of cold response mechanisms in plants such as Arabidopsis thaliana, began research in order to unravel the physiological and molecular mechanisms in response to cold in other plant species. In this work, we studied the physiological response observed in Ilex paraguariensis plants submitted to low temperatures (0°C), w ith or without a pre-moderate acclimatization treatment period of (8°C). Our results suggest the existence of an acclimation response in Ilex paraguariensis, similar to that described in other species of the same temperature. Research Article Evaluation of cold response in Ilex paraguariensis Sandonaid Andrei Geisler1, Carina Francisca Argüelles2 and Cristian Antonio Rojas1* 1Federal University of Latin American Integration, Foz do Iguaçu 85866-000, Brazil 2General Applied Genetics Research Group (GIGA), IBS Nodo Posadas, UNaM CONICET, Posadas, Misiones, Argentina *Address for Correspondence: Cristian Antonio Rojas, Federal University of Latin American Integration, Foz do Iguaçu 85866-000, Brazil, Email: cristian.rojas@unila.edu.br Submitted: 21 December 2018 Approved: 11 March 2019 Published: 12 March 2019 Copyright: © 2019 Geisler SA, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited","PeriodicalId":93470,"journal":{"name":"Journal of plant science and phytopathology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49165049","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}