Preliminary assessment of seed heteromorfism as an adaptive strategy of Colobanthus quitensis under saline conditions.

ABSTRACT: Colobanthus quitensis is known for enduring extreme conditions, such as high salinity in Antarctica, making it an excellent model for studying environmental stress. In plant families, variations in seed color heteromorphism have been linked to various germination under stress conditions. Preliminary laboratory observations indicated that dark brown seeds of C. quitensis had higher germination rates, suggesting that this phenotypic trait might offer a germination advantage, particularly under saline conditions. To investigate this, germination of heteromorphic seeds from Antarctic, sub-Antarctic, and Andean populations of C. quitensis was assessed under in vitro saline conditions. Among all populations, dark brown seeds exhibited greater germination and shorter germination time than other s

SUBMITTER: Ontivero Y 

PROVIDER: S-EPMC11680888 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature