Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Seed transmission of ULCV in mungbean and urdbean plants infected with both MYMV and ULCV.

Abstract

Seed transmission of seeds collected from plants infected with Mung bean yellow mosaic virus (MYMV) alone, Urdbean leaf crinkle virus (ULCV) alone and combined infection of MYMV and ULCV in mung bean and urdbean (Vigna mungo) were studied. The seeds collected from plants infected only with MYMV did not produce symptoms both in mung bean and urdbean. The percentage seed transmission of ULCV in mung bean and urdbean was 26.25 and 34.50%, respectively, whereas in seeds collected from plants infected with both MYMV and ULCV, the seed transmission of ULCV in mung bean was 21.13% and in urdbean 26.25%. The maximum reduction in germination percentage and vigour index was recorded in seeds collected from plants infected with both MYMV and ULCV of mung bean and urdbean in seed germination tests. The seed transmission of ULCV was decreased when the plants were infected both with ULCV and MYMV, but the other parameters such as germination percentage and vigour index were decreased considerably. PCR using deng primer confirmed that MYMV was not seed transmitted in mung bean and urdbean when infected individually or with both MYMV and ULCV.