PNABD246.pdf

The Prince. Only Chenopodium quinoa developed systemic chlorotic spots due to
virus infection. The severity of host reaction to MMV infection appeared to be
related to the age at which mungbean became infected. Seven-day old mungbean
seedlings were severely stunted and did not produce seeds. Plants which had
been infected 14 days after seeding were not as seriously affected but growth
remained substantially less than uninfected mungbean plants. This information
is of some value in screening germplasm materials for sources of resistance to
mungbean mottle virus. [ASJ
*0266 Scott, H.A. ; Phatak, H.C. 1979. Properties of blackgram mottle
virus. PHYTOPATHOLOGY, v.69(4):346-348. [En] [En Abst] (REP.MB-2141)
Blackgram mottle virus was purified from infected black valentine bean
plants by a chloroform-butanol procedure. Purified preparations contained
polyhedral particles 28 nm in diameter and exhibited a single
immunoelectrophoretic component that migrated toward the anode at pH 8.8.
Analytical ultracentrifugation showed a single component with a sedimentation
coefficient of 122S and a density of 1.364 gm/cm3. Polyacrylamide gel
electrophoresis demonstrated one nucleic acid component and one coat protein
subunit with estimated molecular weights of 1.4xl.OE6 and 38,200 daltons,
respectively. Phenol-extracted nucleic acid was infectious on pinto bean and
sensitive to ribonuclease and had a nucleotide ratio of G = 24.9%; A = 25.9%; C
= 25.3%; U= 24.0%. Blackgram mottle virus was transmitted by the bean leaf
beetle, Cerotoma trifurcata, and the Mexican bean beetle, Epilachna varivestis.
Reciprocal serologic tests failed to show relationships between blackgram
mottle virus and members of other beetle-transmitted legume virus groups. [ASJ
*0267 Talens, L.T. 1979. Evidence that blackgram mottle and mungbean mottle
viruses are distinct but serologically indistinguishable viruses [Abst.j.
PHILIPPINE PHYTOPATHOLOGY, v.15:89. [Enj (A:PS)
MEETING: Annual Meeting of the Philippine Phytopathological Society, 16th --
Manila, Philippines, May 2-5, 1979
Comparative studies on the host range, symptomatology, and serology of
blackgram mottle virus (BGKV) and mungbean mottle virus (MMV) suggest that the
two viruses are serologically indistinguishable, but biologically distinct.
They only differed in symptoms induced on the indicator plants Chenopodium
amaranticolor and C. quinoa. [EMSj
*0268 Scott, H.A. ; Hoy, .W. 1981. Blackgram mottle virus. DESCRIPTIONS
OF PLANT VIRUSES, Set.15(..o.237). [En] (A:PS)
Geographical distribution, host range, symptomatology, and other
information on blackgram mottle virus are described. [EMS]
*0269 Honda, Y. ; Iwaki, M. ; Thongmeearkom, P. ; Deema, N. ; Srithongchai,
W. 1982. Blackgram mottle virus occurring on mungbean and soybean in Thailand.
JARQ: JAPAN AGRICULTURAL RESEARCH QUARTERLY, v.16(I):72-77. [EnJ [En Abst]
(A:PS)
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