Chickpea chlorotic dwarf virus (CpCDV), a polyphagous mastrevirus, family Geminiviridae, has been recently linked to the onset of the "hard fruit syndrome" of watermelon, first described in Tunisia, that makes fruits unmarketable due to the presence of white hard portions in the flesh, chlorotic mottling on the rind, and an unpleasant taste. To investigate the etiological agent of this disease,...

Pepper mottle virus is a member of genus Potyvirus and infects many plants worldwide. Bell pepper (Capsicum annuum) leaves with symptoms were collected, after using RT-PCR amplification virus-specific primers for the coat protein, amplicons sequenced. Sequences revealed presence (PeMV) first time in Iran. Phylogenetic analysis protein sequences showed that Iranian isolates shared greatest pairw...

ABSTRACT Elicitation of induced systemic resistance (ISR) by plant-associated bacteria was initially demonstrated using Pseudomonas spp. and other gram-negative bacteria. Several reviews have summarized various aspects of the large volume of literature on Pseudomonas spp. as elicitors of ISR. Fewer published accounts of ISR by Bacillus spp. are available, and we review this literature for the f...

In sub-Saharan Africa, sweetpotato (Impomoea batatas L.) production is greatly constrained by sweetpotato virus disease (SPVD) complex. This study was conducted to assess the incidence of viruses in healthy-looking sweetpotato in Uganda and to optimise modern technologies for virus diagnosis. A collection of healthy-looking sweetpotato vines from central Uganda were serologically assayed for sw...

Watermelon chlorotic stunt virus (WmCSV) is a bipartite begomovirus (genus Begomovirus, family Geminiviridae) that causes economic losses to cucurbits, particularly watermelon, across the Middle East and North Africa. Recently squash (Cucurbita moschata) grown in an experimental field in Oman was found to display symptoms such as leaf curling, yellowing and stunting, typical of a begomovirus in...

The present field experiment was carried out during 2021-2022 at the Vegetable Research Farm, Department of Horticulture, Sam Higginbottom University Agriculture Technology and Sciences, Prayagraj. laid in Randomized Block Design with three replications nine treatments. investigation a view to study effect different mulching material on growth, yield quality watermelon. results revealed that pl...

We have determined the nucleotide sequence of the region of red clover mottle virus (RCMV) bottom component RNA which encodes the RCMV equivalent of the cowpea mosaic virus (CPMV) 24K protease. From the alignment of the deduced amino acid sequence of the RCMV 24K protein with that of the homologous protein from CPMV, we speculate on the relative importance of the various amino acid residues whi...

During routine graft indexing of Rubus clones at the USDA-ARS Horticultural Crops Research Laboratory in Corvallis, Oregon, a ‘Glen Clova’ plant that originated in Scotland induced severe symptoms including stunting and apical necrosis when grafted on ‘Munger’ black raspberry (Rubus occidentalis). Cloning of viral dsRNA obtained from the plant and sequence analysis indicated the presence of a n...

Accepted : August, 2009 The complexity of many virus diseases has led to the development of a large number of approaches for their control. The use of chemical insecticides at large scale has caused serious environmental problems. However, permanent elimination of any significant amount of broad spectrum synthetic pesticide also cannot be adopted. Thus new pesticides which can meet different st...