AtSRP1, SMALL RUBBER PARTICLE PROTEIN HOMOLOG, functions in pollen growth and development in Arabidopsis

作者：Chi Yong Hun; Kim Sun Young; Lee Eun Seon; Jung Young Jun; Park Joung Hun; Paeng Seol Ki; Oh Hun Taek; Melencion Sarah Mae Boyles; Alinapon Cresilda Vergara; Lee Sang Yeol^*

来源：Biochemical and Biophysical Research Communications, 2016, 475(2): 223-229.

DOI：10.1016/j.bbrc.2016.05.083

• SMALL RUBBER PARTICLE PROTEIN
• HOMOLOG
• Non-rubber-producing plant
• Physiological function
• Pollen growth and development

To identify novel roles of SMALL RUBBER PARTICLE PROTEIN Homolog in the non-rubber-producing plant Arabidopsis (AtSRP1), we isolated a T-DNA-insertion knock-out mutant (FLAG_543A05) and investigated its functional characteristics. AtSRP1 is predominantly expressed in reproductive organs and is localized to lipid droplets and ER. Compared to wild-type (WT) Arabidopsis, atsrp1 plants contain small siliques with a reduced number of heterogeneously shaped seeds. The size of anther and pollen grains in atsrp1 is highly irregular, with a lower grain number than WT. Therefore, AtSRP1 plays a novel role related to pollen growth and development in a non-rubber-producing plant.

• 出版日期2016-6-24