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EFFECT OF NITROGEN, SULFUR AND OTHER FACTORS ON ZOOSPORE PRODUCTION BY PROTOSIPHON BOTRYOIDES
Author(s) -
O'Kelley Joseph C.,
Deason Temd R.
Publication year - 1962
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1962.tb15008.x
Subject(s) - zoospore , distilled water , nutrient , nitrate , biology , nitrogen , botany , food science , osmotic pressure , sulfur , chemistry , chromatography , ecology , spore , organic chemistry
O'K elley , J. C., and T. R. D eason . (U. Alabama, University.) Effect of nitrogen, sulfur and other factors on zoospore production by Protosiphon botryoides. Amer. Jour. Bot. 49(7): 771–777. Illus. 1962.—Nutrient‐medium pH, osmotic pressure, staling products, and mineral depletion were studied in relation to zoospore production by Protosiphon botryoides in liquid media. In an intermediate range (pH 5.1–7.7), pH has little or no influence specifically on zoospore production. Although distilled water is an unsuitable medium for zoospore production, if a balanced nutrient medium is supplied, osmotic pressure is without pronounced influence over a wide range. Staling products in old cultures exert a minor inhibitory effect. Deficiencies of nitrate, sulfate, or calcium in liquid media can decrease drastically zoospore production or release, and nitrate or calcium depletion appears to be mainly responsible for loss of the capacity of Protosiphon to produce and release zoospores in aged liquid cultures.