Ties between Stress and Lipid Droplets Pre-date Seeds

de Vries Jan; Ischebeck Till

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Ties between Stress and Lipid Droplets Pre-date Seeds

机译：应力和脂肪液滴之间的关系前期种子

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Seeds were a key evolutionary innovation. These durable structures provide a concerted solution to two challenges on land: dispersal and stress. Lipid droplets (LDs) that act as nutrient storage reservoirs are one of the main cell-biological reasons for seed endurance. Although LDs are key structures in spermatophytes and are especially abundant in seeds, they are found across plants and algae, and increase during stress. Further, the proteins that underpin their form and function often have deep homologs. We propose an evolutionary scenario in which (i) the generation of LDs arose as a mechanism to mediate general drought and desiccation resilience, and (ii) the required protein framework was co-opted by spermatophytes for a seed-specific program.

机译：种子是一项关键的进化创新。这些耐用的结构为陆地上的两大挑战提供了协调一致的解决方案：扩散和压力。脂滴作为营养贮藏库是种子耐性的主要细胞生物学原因之一。虽然LDs是种子植物中的关键结构，在种子中含量特别丰富，但它们在植物和藻类中都存在，并在胁迫期间增加。此外，支撑其形态和功能的蛋白质通常具有深层同源物。我们提出了一个进化场景，其中（i）LDs的产生是一种调节总体干旱和干燥恢复力的机制，以及（ii）种子植物为种子特异性项目选择所需的蛋白质框架。

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《Trends in Plant Science》 |2020年第12期|共12页
作者
de Vries Jan; Ischebeck Till;
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Univ Goettingen Inst Microbiol &

Genet Dept Appl Bioinformat Goldschmidtstr 1 D-37077 Gottingen Germany;

Univ Goettingen Goettingen Ctr Mol Biosci GZMB D-37077 Gottingen Germany;

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中图分类植物学;
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10. Ties between Stress and Lipid Droplets Pre-date Seeds [O] . Jan de Vries, Till Ischebeck 2020

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Ties between Stress and Lipid Droplets Pre-date Seeds

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