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PHOTOCONTROL OF SPORE GERMINATION IN POLYPODIUM VULGARE L.
Author(s) -
AGNEW NORMA,
McCABE ANNE,
SMITH D. L.
Publication year - 1984
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1984.tb03553.x
Subject(s) - phytochrome , germination , spore , botany , pigment , red light , far red , fern , blue light , spore germination , biology , action spectrum , chemistry , physics , optics , organic chemistry
S ummary Spore germination in the. fern Polypodium vulgare is induced by light at all wavelengths from blue to far‐red, although red light is most effective. The action spectrum for germination together with observations on the photoreversible effects of red and far‐red light provide evidence for the involvement of phytochrome, but the effects of blue light, particularly its interactions with red light, are incompatible with an interpretation in terms of phytochrome alone. It is suggested that two pigments are involved, phytochrome and a blue light absorbing pigment, but that not all spores contain effective levels of both pigments.