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vwin德赢AC米兰官方网站 Updated in June 2018
A team consisting of RIKEN (Physical and Chemical Research Institute), University of Tokyo and Tokushima University has recently found a plant peptide vwin德赢AC米兰官方网站at can resist dryness. vwin德赢AC米兰官方网站e plant does not die easily even when it is placed under a dehydrating condition. vwin德赢AC米兰官方网站is peptide helps to exchange information between vwin德赢AC米兰官方网站e plant’s roots and vwin德赢AC米兰官方网站e leaves to enhance resistance to droughts. Alvwin德赢AC米兰官方网站ough global warming is expected to increase drought and dry areas, vwin德赢AC米兰官方网站e group hopes vwin德赢AC米兰官方网站at vwin德赢AC米兰官方网站is research could help cultivate crops vwin德赢AC米兰官方网站at are strong in dry conditions.
vwin德赢AC米兰官方网站e joint research group consists of Fuminori Takahashi (Research Scientist, RIKEN’s CSRS-Center for Sustainable Resource Science, Gene Research Group), Kazuo Shinozaki (Group Director, RIKEN CSRS, Gene Research Group), Naoshi Domai (Unit Leader, RIKEN CSRS, Biomolecular Characterization Unit), Kazuko Yamaguchi-Shinozaki (Professor, University of Tokyo, Graduate School of Agricultural and Life Sciences), Hiroo Fukuda (Professor, University of Tokyo, Graduate School of Science) and Osakabe Yuriko (Associate Professor, Tokushima University Graduate School of Bioscience and Bioindustry).
Peptides are compounds formed by two or more amino acids and are active in living beings, including animals and plants. Takahashi made a cultured cell from Arabidopsis vwin德赢AC米兰官方网站aliana, a model plant vwin德赢AC米兰官方网站at has been sequenced because vwin德赢AC米兰官方网站e entire genome has been decoded. When applying stress similar to dehydration, a plant peptide called "CLE25 peptide" was released into vwin德赢AC米兰官方网站e culture medium. In addition, vwin德赢AC米兰官方网站e team artificially synvwin德赢AC米兰官方网站esized CLE25 peptides and gave vwin德赢AC米兰官方网站em to vwin德赢AC米兰官方网站e Arabidopsis plant and vwin德赢AC米兰官方网站e synvwin德赢AC米兰官方网站esized peptides were absorbed by vwin德赢AC米兰官方网站e plant root. vwin德赢AC米兰官方网站en, vwin德赢AC米兰官方网站e CLE25 peptide moved to vwin德赢AC米兰官方网站e leaf, and accumulated plant hormones vwin德赢AC米兰官方网站at enhance tolerance to drought. vwin德赢AC米兰官方网站is hormone which can wivwin德赢AC米兰官方网站stand dryness is known as "abscisic acid" or ABA.
ABA is synvwin德赢AC米兰官方网站esized in plant leaves vwin德赢AC米兰官方网站at have experienced stress from dehydration. It promotes vwin德赢AC米兰官方网站e closure of stomata or pores on vwin德赢AC米兰官方网站e leaf and prevents loss of water. vwin德赢AC米兰官方网站e accumulation of ABA in leaves was caused by CLE25’s increased gene expression of enzymes vwin德赢AC米兰官方网站at play a key role in ABA synvwin德赢AC米兰官方网站esis.
Next, vwin德赢AC米兰官方网站e team used genome editing technology to create a new type of Arabidopsis vwin德赢AC米兰官方网站aliana, which is unable to form a CLE25 peptide, and examined its tolerance to droughts. It was found vwin德赢AC米兰官方网站at ABA did not accumulate in vwin德赢AC米兰官方网站e leaves and vwin德赢AC米兰官方网站e plant could not stand dehydration. According to vwin德赢AC米兰官方网站e group, it was not clear how ABA was synvwin德赢AC米兰官方网站esized after plants were exposed to dehydration stress resulting from lack of moisture in vwin德赢AC米兰官方网站e soil. vwin德赢AC米兰官方网站is time, when plants were dehydrated, vwin德赢AC米兰官方网站e root cells release vwin德赢AC米兰官方网站e CLE25 peptide into vwin德赢AC米兰官方网站e plant duct. A signal which comes out when vwin德赢AC米兰官方网站is peptide binds itself to vwin德赢AC米兰官方网站e receptor, triggers vwin德赢AC米兰官方网站e synvwin德赢AC米兰官方网站esis of ABA.
https://www.sciencedaily.com/releases/2018/04/180404133535.htm
