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Sporulatim in the fungus Verticillium agaricinum: Reversal of blue light inhibition by Ultraviolet radiation
Author(s) -
Hsiao Kecheng
Publication year - 1984
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1984.tb06090.x
Subject(s) - blue light , conidiation , ultraviolet light , verticillium , near ultraviolet , ultraviolet , inoculation , fungus , biology , conidium , microbiology and biotechnology , botany , chemistry , photochemistry , horticulture , materials science , optoelectronics , biochemistry , mutant , gene
In colonies ranging from 3‐ to 5‐days‐old, light in general stimulates conidiation in Verticillium , including V. agaricinum and several strains of V. albo‐atrum . However, when growth was started by inoculating with conidial suspension spread evenly over the plate, it was found that blue light inhibited conidiation in our strain of V. egaticinum . We most light‐sensitive phase was around 9 h after inoculation. A broad band blue light pulse of 10 J m −2 saturated the response. The inhibitory effect of blue light could be reversed by a subsequent ultraviolet (UV) radiation, but a further effect of blue light was lost after the UV pulse. Blue light inhibition was also prevented by IJV radiation administered before the blue light.