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GROWTH FACTORS PRODUCED BY GAMETOPHYTES OF POLYPODIUM VULGARE L. GROWN UNDER RED AND BLUE LIGHT
Author(s) -
SMITH D. L.,
ROBINSON P. M.,
GOVIER R. N.
Publication year - 1973
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.1469-8137.1973.tb02102.x
Subject(s) - gametophyte , blue light , botany , biology , spore , germination , morphogenesis , apical cell , red light , protonema , cell division , cell , biochemistry , optics , moss , physics , pollen , gene
SUMMARY Filtrates from gametophyte cultures of Polypodium vulgare L. grown under red or blue light contain several substances affecting gametophyte development. Chromatograms prepared from red‐light‐grown cultures show two separate zones of inhibition while those from blue‐light‐grown cultures show a broad zone of promotive activity and a zone of inhibition. All the zones of activity affect spore germination, cell division and the transition to two‐dimensional growth. None affects cell length but the inhibitors cause a reduction in cell width. Most of the known effects of red and blue light on gametophyte morphogenesis can be interpreted in terms of the activity of these substances.