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Studies of the seed‐transmission of tobacco ringspot virus
Author(s) -
OWUSU G. K.,
CROWLEY N. C.,
FRANCKI R. I. B.
Publication year - 1968
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1968.tb04525.x
Subject(s) - biology , transmission (telecommunications) , plant virus , virology , potyvirus , botany , virus , telecommunications , computer science
SUMMARY Some factors influencing the transmission of tobacco ringspot virus (TRSV) by seed of soybean, Glycine max (L.) Merr. cv. Lincoln, have been studied. The age of a plant at the time of infection was the most important factor determining the amount of infected seed produced. The inability of TRSV to infect maturing embryos was not due to slowness of virus movement within the host. TRSV was consistently found in the embryo and perisperm tissues of infected seeds but not in the testa. All attempts to control seed‐transmission of TRSV in soybean failed. Storage for 7 months, and heat‐treatment of seed at temperatures near the thermal inactivation point of the virus, failed to inactivate TRSV in infected seeds. Spraying of TRSV‐infected plants with 2‐thiouracil and 8‐azaguanine had no effect on host infection and did not prevent seed‐transmission.