Physiological and Molecular Plant Pathology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Hydrogen peroxide protects pepper (Capsicum annuum L.) against pepper golden mosaic geminivirus (PepGMV) infections
Publication date: Available online 29 November 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Laura Mejía-Teniente, Blanca A. Durán-Flores, Irineo Torres-Pacheco, Mario Martín González-Chavira, Rafael F. Rivera-Bustamante, Ana A. Feregrino-Perez, Iza Pérez-Ramírez, Nuria E. Rocha-Guzmán, Rosalía Reynoso-Camacho, Ramón G. Guevara-GonzálezAbstractHydrogen peroxide is an important signal molecule in plant defense against biotic and abiotic stress. Pepper golden mosaic virus (PepGMV) is a whitefly-transmitted geminivirus causing significant yield and quality losses in pepper and other horticultural...
Source: Physiological and Molecular Plant Pathology - November 30, 2018 Category: Molecular Biology Source Type: research

Pectin acetylesterase PAE5 is associated with the virulence of plant pathogenic oomycete Peronophythora litchii
Publication date: Available online 26 November 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Guanghui Kong, Lang Wan, Yi Zhen Deng, Wensheng Yang, Wen Li, Liqun Jiang, Junjian Situ, Pinggen Xi, Minhui Li, Zide JiangAbstractPectin is a major component of the primary cell wall of higher plants. Some galacturonyl residues in pectin are often O-acetylated. Pectin acetylesterases (PAEs) involved in enzymatic deacetylation of pectin are widespread in the plant pathogenic oomycetes and show sequence and transcriptional polymorphism. Peronophythora litchii is the most destructive pathogens known on lychee (Litc...
Source: Physiological and Molecular Plant Pathology - November 27, 2018 Category: Molecular Biology Source Type: research

Gender-based constraints affecting biofortified cassava production, processing and marketing among men and women adopters in Oyo and Benue States, Nigeria
This study identified gender-based constraints affecting the production, processing and marketing of biofortified cassava in two states in Nigeria, using a mixed methods approach. The study identified major differences between the two study sites (Benue and Oyo). The scale of production of biofortified cassava is higher in Oyo state among adult men because of their active involvement and collaboration with research institutes within the state and the ease of transporting products to Lagos State for designated diverse markets. However, in Benue state more adult and young women are engaged in cultivation, processing and mark...
Source: Physiological and Molecular Plant Pathology - November 26, 2018 Category: Molecular Biology Source Type: research

Molecular and phenotypic characterization of pathogenic fungal strains isolated from Ginseng root rot
Publication date: Available online 21 November 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Kaliannan Durairaj, Palanivel Velmurugan, Kaliyappan Amballandi Vedhanayakisri, Woo-Suk Chang, Palaninaicker Senthilkumar, Kyung-Min Choi, Jeong-Ho Lee, Byung-Taek OhAbstractIn the present study, we investigated the diversity of pathogenic fungal strain isolated from infected Korean ginseng root rot and tested their morphology, molecular characterization, and pathogenic impact. From the results, we have identified different shapes of fungal conidia such as cylindrical, conical, bell and convex shape. The molecul...
Source: Physiological and Molecular Plant Pathology - November 22, 2018 Category: Molecular Biology Source Type: research

Transcriptome analysis of Sclerotinia ginseng and comparative analysis with the genome of Sclerotinia sclerotiorum
In this study, de novo RNA sequencing was carried out using an Illumina HiSeq™ 4000 platform in conjunction with the short-read assembly program Trinity. The S. ginseng transcriptome was compared with that of Sclerotinia sclerotiorum, and species-specific unigenes were annotated with KEGG and GO terms. Phylogenetic analysis of amino acid sequences for four polygalacturonase (pg) genes and a pH-response transcription factor (pac1) homologous gene identified in S. ginseng revealed a close evolutionary relationship with other species of Sclerotiniaceae. (Source: Physiological and Molecular Plant Pathology)
Source: Physiological and Molecular Plant Pathology - November 21, 2018 Category: Molecular Biology Source Type: research

Histological and biochemical aspects of compatible and incompatible wheat- Puccinia striiformis interactions
Publication date: Available online 19 November 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Samar.M. Esmail, Reda.I. Omara, Khaled.A.A. Abdelaal, Yaser.M. HafezAbstractThe resistant, slow and fast-rusting cultivars were selected from 15 wheat cultivars to study biochemical and histological aspects of compatible and incompatible wheat-Puccinia striiformis interactions. Final rust severity (%) and area under disease progress curve were significantly decreased in resistant cultivars compared with susceptible ones. Biochemical analysis revealed that reactive oxygen species (ROS), i.e. superoxide (O2•-) a...
Source: Physiological and Molecular Plant Pathology - November 21, 2018 Category: Molecular Biology Source Type: research

Transcriptional analysis and histochemistry reveal a dominant role for cell wall signaling in mediating Pythium myriotylum resistance in Zingiber zerumbet
Publication date: Available online 15 November 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Kiran Ayyanperumal Geetha, Sayuj Koyyappurath, Lesly Augustine, George ThomasAbstractAlthough post infection changes in cell wall constituents are known to induce the immune response in plants against necrotrophs, little is known about the role of the cell wall in mediating resistance in Zingiber zerumbet (L.) Smith (Zingiberaceae) against the soil-borne necrotrophic oomycete Pythium myriotylum Drechsler, which causes soft-rot disease. Using RNA-Seq in combination with custom gene expression microarray we studie...
Source: Physiological and Molecular Plant Pathology - November 16, 2018 Category: Molecular Biology Source Type: research

Fusarium oxysporum affects differently the hydrogen peroxide levels and oxidative metabolism in susceptible and resistant bean roots
This study aimed at investigating the role of enzymes related to the oxidative metabolism and hydrogen peroxide in susceptible and resistant plants of common bean to Fusarium oxysporum f. sp. phaseoli (Fop). Fop inoculation increased H2O2 levels only in roots of resistant plants. Despite this, no hypersensitive cells were induced. In the enzymatic metabolism, two distinct phases were observed in resistant roots; the first one at 1 day after inoculation (dai) characterized by an increase in guaiacol peroxidase, superoxide dismutase and ascorbate peroxidase, and decrease in catalase and lipoxygenase activities, and the secon...
Source: Physiological and Molecular Plant Pathology - November 8, 2018 Category: Molecular Biology Source Type: research

Editorial Board
Publication date: December 2018Source: Physiological and Molecular Plant Pathology, Volume 104Author(s): (Source: Physiological and Molecular Plant Pathology)
Source: Physiological and Molecular Plant Pathology - November 7, 2018 Category: Molecular Biology Source Type: research

REVIEW: Novel sources and functions of microbial lipases and their role in the infection mechanisms
Publication date: December 2018Source: Physiological and Molecular Plant Pathology, Volume 104Author(s): Ananias Pascoal, Letícia M. Estevinho, Ivone M. Martins, Altino B. ChoupinaAbstractLipases belong to the family of serine hydrolases, which in turn include various esterase enzymes (E.C.3.1.1.1). They are involved in the cleavage of triacylglycerols to free fatty acids and glycerol in many important biological processes, as for instance routine metabolism of dietary triglycerides to cell signalling and inflammation. Lipases constitute a ubiquitous group of enzymes able to catalyse a number of different reactions, many ...
Source: Physiological and Molecular Plant Pathology - November 1, 2018 Category: Molecular Biology Source Type: research

First report of Cassava brown streak viruses on wild plant species in Mozambique
Publication date: Available online 28 October 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Jamisse J.G. Amisse, Joseph Ndunguru, Fred Tairo, Laura M. Boykin, Monica A. Kehoe, Nurbibi Cossa, Elijah Ateka, Chrissie Rey, Peter SseruwagiAbstractCassava brown streak disease (CBSD) caused by Cassava brown streak virus (CBSV) and Ugandan cassava brown streak virus (UCBSV) is the main constraint to cassava (Manihot esculenta Crantz) production in Mozambique. Using RT-PCR to amplify partial coat protein nucleotide sequences, we detected for the first time the occurrence of CBSV in two non-cassava perennial wild...
Source: Physiological and Molecular Plant Pathology - October 29, 2018 Category: Molecular Biology Source Type: research

Recombinant Tomato leaf curl New Delhi virus is associated with yellow vein mosaic disease of okra in India
Publication date: Available online 17 October 2018Source: Physiological and Molecular Plant PathologyAuthor(s): V. Venkataravanappa, C.N. Lakshminarayana Reddy, S. Saha, M. Krishna ReddyAbstractOkra is the important vegetable crop grown across tropical and subtropical regions of the world. Yellow vein mosaic (YVMD) and enation leaf curl (ELCuD) diseases caused by begomoviruses are the major threat for cultivation and production of okra in India. Survey conducted between 2006 and 2010 revealed the incidence of begomovirus diseases ranged from 55 to 90% in okra growing states (ten states and two union territories) of the cou...
Source: Physiological and Molecular Plant Pathology - October 18, 2018 Category: Molecular Biology Source Type: research

Molecular cloning, bacterial expression and promoter analysis of pathogenesis-related protein 10 gene from Panax notoginseng
Publication date: Available online 15 October 2018Source: Physiological and Molecular Plant PathologyAuthor(s): Dan Yang, Lan Jiang, Yi Bao, Wenxia Liu, Hengli Zhang, Limei Chen, Kunzhi LiAbstractBased on transcriptome analysis and RT-PCR techniques, a PR10 gene was isolated from P. notoginseng root and named PnPR10. Bioinformatics and phylogenetic tree analyses revealed that the open reading frame (ORF) of PnPR10 was 465 bp in length, encoding 154 amino acids and containing one typical conserved domain of the pathogenesis-related protein Bet v I family, with high similarity to the gene from P. ginseng. Using the genome wa...
Source: Physiological and Molecular Plant Pathology - October 15, 2018 Category: Molecular Biology Source Type: research

Infection of maize inbred B73 by Ustilago maydis and Fusarium proliferatum triggers differential expression of the β-glucosidase genes
Publication date: Available online 1 October 2018Source: Physiological and Molecular Plant PathologyAuthor(s): M. Rojas, F. Ascencio-Valle, A. Tiessen, M. Arce-Montoya, G. Gómez-AnduroAbstractβ-glucosidases participate (EC 3.2.1.21) in the activation of glycosylated and inactive forms of various compounds during plant response to the environmental conditions. The understanding of regulatory mechanisms for β-glucosidases in each plant species and their functionality is the purpose of various investigations. Our study reports the expression analysis of 10 β-glucosidase genes in corn seedlings after a challenge infection ...
Source: Physiological and Molecular Plant Pathology - October 5, 2018 Category: Molecular Biology Source Type: research

Study of biochemical and histopathological changes induced in the sweet pepper (Capsicum annuum L.) in response to Chilli leaf curl virus infection
Publication date: Available online 3 October 2018Source: Physiological and Molecular Plant PathologyAuthor(s): S. Kumar, R. Raj, S.K. Raj, L. Agrawal, P.S. Chauhan, A. SrivastavaAbstractA survey was conducted at the horticulture field at Lucknow, India and about 64% leaf curl disease incidence was observed on sweet pepper (Capsicum annuum L.) plants. The severe leaf curl disease was observed in several sweet pepper plants causing deterioration of size and quality of fruit. Therefore, this study was undertaken to characterize the pathogen to cause leaf curl disease in sweet pepper and explore the impact of virus disease on ...
Source: Physiological and Molecular Plant Pathology - October 5, 2018 Category: Molecular Biology Source Type: research