AtSec20 is involved in osmotic stress tolerance and AtSec20 mutation unaffects the integrity of intracellular organelles and the anterograde biosynthetic trafficking

• Autorzy: Zhao P , Liu F. , Wang B. , Yu G. , Jia P. , Liu H.
• Języki publikacji: EN

Abstrakty

EN

The soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) play essential roles in intracellular trafficking. However, few experimental data have clarified their roles in the stress responses and the early secretary pathway in Arabidopsis. The AtSec20 gene encodes a protein that is homologous to yeast Sec20p and mammalian BNIP1, which are involved in the Golgi-to-ER retrograde trafficking in yeast and mammalian cells. In this study, AtSec20 is found to be required for the responses to salt stress, osmotic stress and gibberellin (GA) during seed germination and early seedling establishment. Mutation of AtSec20 unaffects the morphology of intracellular organelles, such as endoplasmic reticulum (ER), trans-Golgi network, and peroxisome, and vacuolar protein trafficking is normal in sec20 mutants. Collectively, these results imply that the AtSec20 is involved in abiotic stress tolerance, potentially via roles in retrograde vesicle fusion process in Arabidopsis.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2013
• Tom: 35
• Numer: 05
• Opis fizyczny: p.1625-1632,fig.,ref.

Twórcy

autor

Zhao P

• Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Donggang West Road 320, Lanzhou 730000, People’s Republic of China
• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

autor

Liu F.

• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

autor

Wang B.

• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

autor

Yu G.

• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

autor

Jia P.

• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

autor

Liu H.

• Institute of Cell Biology, Life Sciences School, Lanzhou University, 222# Tianshui Nan Lu, Lanzhou 730000, People’s Republic of China

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