Author(s): M. R.
Ara*, M. M. H. Masud and A. M. Akanda
*Corresponding
author; Email: bithi.treno@gmail.com
Abstract
A study was conducted to identify if
viruses infecting weeds act as
alternate host. In all five different viruses namely TPVV(Tomato Purple
Vein Virus), CMV-Y (Cucumber Mosaic Virus-Y ), OYVCMV (Okra Yellow Vein
clearing Mosaic Virus), MYMV (Mungbean Yellow Mosaic Virus), TYLCV (Tomato
Yellow Leaf Curl Virus) were identified as the
causal virus/possible causal viruses from virus disease like symptoms developed under
natural condition on six weed species Blumea laceracera (Kremahan), Salamum
torvum (Soushumber), Jussiaea suffruticosa (Wing Water Primrose), Physalis heterophylla (Ground
cherry), Ageratum conyzoides (Goat
weed), Synedrella nodiflora (Babadoton lalaki) growing at Bangabandhu Sheikh Mujibur Rahman
Agricultural University (BSMRAU), Salna, Gazipur, campus. The viruses were identified
on the basis of symptomatological study and inoculation test. It
was observed that MYMV caused Yellow Mosaic of Blumea laceracera,
while TYLCV caused leaf distortion mosaic of Solarium tarvum, mosaic
of Physalis heterophylla, yellow mosaic of Synedrella nodiflora,
mosaic of Ageratun conyzoides. OYVCMV was diagnosed as the causal agent
of vein chlorosis of Synedrella nodiflora . It was found that TPVV
caused yellow vein mosaic of Jussiaea suffruticosa. All the viruses so
far identified were member of Gminivirus group except CMV-Y, which
belong to Comovirus group.
