Abstract
Mosaic and leaf blisters symptoms were observed in Trichosanthese cucumerina (Snake gourd) in regions of coimbatore, India. The biological, physical, serological and molecular properties of the virus isolate were studied. Virus isolate produce chlorotic local lesions on Chenopodium amaranticolor and systemic symptoms on all inoculated cucurbitaceous hosts. The particles appear flexuous rod shape of 750×12 nm under electron microscope. Serologically this isolate identified as strain of PRSV. Dilution end point of virus isolate was 10-4. Thermal inactivation point and Longevity in-vitro of the virus isolate was found to be 55°C and 30 h respectively.
Highlights
The Family cucurbitaceae comprises approximately 80- genera and over 800 species of plants
Several viruses has viz., Cucumber mosaic virus (CMV), cucumis virus-2, watermelon mosaic virus(WMV)-1, Papaya ringspot virus (PRSV)-w, Zucchini yellow mosaic virus (ZYMV), WMV-2 and Yellow vein mosaic of pumpkin infecting cucurbits have been reported from India, Nepal, Taiwan, Pakistan and Sri Lanka [2,3,4,5,6,7]
Leaf blistering and combinations of these symptoms were observed on leaves of snake gourd seedlings (Figure 1)
Summary
The Family cucurbitaceae comprises approximately 80- genera and over 800 species of plants. Trichosanthese cucumerina L., locally known as snake gourd or serpent gourd is an important vegetable crop in this family which is probably of native of India. It is cultivated in subtropical and tropical areas [1]. Mosaic disease is the common in the cucurbitaceous crops. In the year 2009, the mosaic and leaf blistering symptoms observed in the Thondamuthur area and orchard, TNAU, Coimbatore, India. The samples were collected and studied for the virus identification. Biological, physical, serological and molecular behavior of the virus isolated was studied critically
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
