Effects of light and nutrients on different germination phases of the Cosmopolitan moss Bryum argenteum Hedw. (Bryaceae)

Author:

Silva Adaíses Simone Maciel da1,Pôrto Kátia Cavalcanti1,Simabukuro Eliana Akie2

Affiliation:

1. Universidade Estadual de Campinas, Brasil

2. Universidade Federal de São Carlos, Brasil

Abstract

The influence of light and nutrients on the different germination phases of Bryum argenteum spores was studied. The following treatments were used: distilled water and nutrient solution under light (12 h) and continuous darkness. The spores germinated when exposed to light, independent of both medium used. Under darkness, the spores swelled and became chlorophyllous. In the presence of nutrient solution, the germination occurred earlier (after two days) when compared to the distilled water (after more than three days). Nutrients were needed to complete the last germination phase in the majority of spores and to provide the protonemal growth.

Publisher

FapUNIFESP (SciELO)

Subject

Multidisciplinary

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