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

Brazilian Archives of Biology and Technology

Adaíses Simone Maciel Da Silva²  Kátia Cavalcanti Pôrto¹  Eliana Akie Simabukuro¹ 

[1] ,Universidade Estadual de Campinas Departamento de Fisiologia Vegetal Campinas SP ,Brasil

关键词: bryophyte;    physiology;    germination;    protonema;    light;    nutrients;   

DOI  :  10.1590/S1516-89132010000400003

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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