Effect of Nutritional Conditions on Sexual Reproduction in Riccia
- 1 January 1979
- journal article
- research article
- Published by JSTOR in The Bryologist
- Vol. 82 (1) , 37-46
- https://doi.org/10.2307/3241965
Abstract
R. duplex Lorbeer ex Muller thallus branches elongate rapidly in the vegetative phase and much more slowly in the reproductive phase. Slow growth and sporophyte formation are brought about by low nutrient conditions, in particular low nitrate availability. In such conditions increasing daylenghth reduces the time for sporophyte formation. Two out of 4 clones of R. fluitans L. and 1 of 2 clones of R. rhenana Lorbeer ex Muller formed archegonia when cultured on solutions providing low nutrient conditions. Antheridia were not formed on either of these 2 latter species under laboratory conditions. R. rhenana Lorbeer ex Muller is not known to be fertile in nature.This publication has 2 references indexed in Scilit:
- The Effects of Mineral Salts, Glucose, and Light on the Growth of the Liverwort, Sphaerocarpos donnelliiPhysiologia Plantarum, 1962
- Growth and Nutrition of Water Molds in the Subgenus euallomyces. I. Growth Factor RequirementsAmerican Journal of Botany, 1953