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- Title
The influence of gypsiferous substrata on bryophyte growth: are there obligatory gypsophilous bryophytes?
- Authors
Bogdanović, Milica; Sabovljević, Marko; Sabovljević, Aneta; Grubišić, Dragoljub
- Abstract
In this paper the effects of gypsum (CaSO4 x 2H2O) in the growth medium were tested on two non-gypsophilous selected bryophyte species: Bryum argenteum Hedw. and Atrichum undulatum (Hedw.) P. Beauv. With aim to test if some bryophytes are exclusive for gypsum enriched substrates, the difference in gypsum effect on moss development were examined. In vitro cultures of two selected species were initiated from nearly mature spores within unopened capsules. Half strenght Murashige and Skoog media with added gypsum in concentrations of 50, 350 and 500mM were used to test bryophyte develepment. Plants were grown on media with gypsum for 3 days or 3 weeks to compare short and long term effect of salt exposure. Tested bryophytes, non-adapted to gypsum and exposed to various gypsum concentrations in MS medium, did not show to have a problem in surviving the new environment conditions. Moss species selected in this study and exposed to gypsum enriched MS medium showed variation in morphological parameters to some extent (index of multiplication, secondary protonemal production and survival rate) and chlorophyll content and slightly altered chlorophyll a/b ratio. In general, both tested species could survive gypsum enriched medium: secondary protonema was developed and new shoots were formed in both species, but slight differences were recorded between short and long term exposure to gypsum. Acording to data obtained, gypsum is not the stressor (at least not alone) which can separate some interesting bryophytes into the ecological group of gypsophytes
- Subjects
GYPSUM in soils; GYPSUM; PLANT growing media; BRYOPHYTE spores; MOSSES; PLANT species; PROTONEMATA; CROPS &; soils; CHLOROPHYLL
- Publication
Botanica Serbica, 2009, Vol 33, Issue 1, p75
- ISSN
1821-2158
- Publication type
Article