Unlabelled: Mosaic disease, caused by whitefly-transmitted begomoviruses, significantly threatens bitter gourd cultivation in India. This study identified and characterized the complete genome of coccinia mosaic Virudhunagar virus (CoMViV) from symptomatic bitter gourd samples collected in Oddanchatram block of Dindigul district, Tamil Nadu, using rolling circle amplification and sequencing. A loop-mediated isothermal amplification (LAMP) protocol was optimized by targeting regions of the CoMViV AV1 and AV2 genes.
View Article and Find Full Text PDFBackground: Bitter gourd (Momordica charantia), ridge gourd (Luffa acutangula), and pumpkin (Cucurbita pepo) are major vegetables of the Cucurbitaceae family cultivated extensively in India. However, their production is severely affected by begomoviruses, which inflict significant global damage to cucurbits. Among these, tomato leaf curl New Delhi virus (ToLCNDV), a whitefly-transmitted, persistent, circulative, and non-propagative begomovirus, seriously threatens cucurbit cultivation, often leading to substantial yield losses.
View Article and Find Full Text PDFEcotoxicology
May 2025
South American pinworm Tuta absoluta (Meyrick) is an invasive and major tomato pest that attained resistance or reduced susceptibility to most insecticides used in their management due to repeated and intensive applications. This study aimed to find the levels of resistance in T. absoluta populations collected from South Indian states against novel insecticides such as chlorantraniliprole 18.
View Article and Find Full Text PDFCurr Microbiol
January 2025
Turmeric is affected by various phytopathogens, which cause huge economic losses to farmers. In the present study, ten isolates of Pythium spp. were isolated from infected turmeric rhizomes and characterized.
View Article and Find Full Text PDFMol Biol Rep
December 2024
Background: Tomato (Solanum lycopersicum L.) is a widely cultivated crop in tropical regions, but its production is often hampered by significant losses attributed to diseases like tomato leaf curl virus (ToLCV), fusarium wilt and root-knot nematode.
Methods And Results: This study employed an integrated approach utilizing both co-dominant and dominant SCAR markers, selected for specific resistance genes (ToLCV-Ty-1, Ty-2, Ty-2, Fusarium wilt (Race-2)-I-2, and Root-knot nematode-Mi-1.
Sunflower ( L.), known for its adaptability and high yield potential, is vital in global edible oil production. Estimating genetic diversity is a key pre-breeding activity in crop breeding.
View Article and Find Full Text PDFFront Plant Sci
August 2024
Tomato is a widely cultivated crop significant for its economic and nutritional benefits. The South American tomato pinworm, , originated in Peru South America and has invaded many nations, causing up to 100% yield loss in tomatoes. The pest was classified as a quarantine pest by the European Plant Protection Organization, before invading the Spain region.
View Article and Find Full Text PDFArch Insect Biochem Physiol
June 2024
Aphids are sap-sucking insects responsible for crop losses and a severe threat to crop production. Proteins in the aphid saliva are integral in establishing an interaction between aphids and plants and are responsible for host plant adaptation. The cotton aphid, Aphis gossypii (Hemiptera: Aphididae) is a major pest of Gossypium hirsutum.
View Article and Find Full Text PDFAphid salivary proteins mediate the interaction between aphids and their host plants. Moreover, these proteins facilitate digestion, detoxification of secondary metabolites, as well as activation and suppression of plant defenses. The cowpea aphid, Aphis craccivora, is an important sucking pest of leguminous crops worldwide.
View Article and Find Full Text PDFFoxtail millet blast caused by is becoming a severe problem in foxtail millet growing regions of India. The genetic diversity and population structure of foxtail millet infecting is crucial for developing effective management strategies, such as breeding blast-resistant cultivars. We analyzed thirty-two isolates from ten foxtail millet-growing districts in Tamil Nadu, India for genetic diversity using twenty-nine microsatellite or simple sequence repeat (SSR) markers.
View Article and Find Full Text PDFWilt disease caused by Fusarium solani, a soil-borne plant pathogenic fungus, is a serious disease in tomato causing economic losses. In the present study, among the nine isolates of Chaetomium globosum Kunze (Chg1-Chg9), screened against F. solani No.
View Article and Find Full Text PDFTomato is affected by various diseases which cause economical loss to the farming community. In the present study, twenty isolates of Bacillus sp. were isolated from the rhizosphere of tomato and screened against soil-borne pathogens viz.
View Article and Find Full Text PDFPlant growth-promoting rhizobacteria (PGPR) are a group of root-associated beneficial bacteria emerging as one of the powerful agents in sustainable plant disease management. Among the PGPR, Bacillus sp. has become a popular biocontrol agent for controlling pests and the diseases of several crops of agricultural and horticultural importance.
View Article and Find Full Text PDFThe vascular wilt of tomato caused by f.sp. is an important soil borne pathogen causes severe yield loss.
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