bZIP CaAIBZ1 Method for improving the resistance to drought stress using bZIP transcription factor CaAIBZ1 in plants

The present invention relates to a chili pepper-derived CaAIBZ1 (Capsicum annuum ASRF1-Interacting bZIP transcription factor 1) gene/protein and a plant drought stress resistance enhancing method using the same. According to the present invention, the CaAIBZ1 gene encoding a negative regulator prote...

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Bibliographic Details
Main Authors JOO HYUNHEE, LIM CHAE WOO, LEE SUNG CHUL
Format Patent
LanguageEnglish
Korean
Published 18.10.2019
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Summary:The present invention relates to a chili pepper-derived CaAIBZ1 (Capsicum annuum ASRF1-Interacting bZIP transcription factor 1) gene/protein and a plant drought stress resistance enhancing method using the same. According to the present invention, the CaAIBZ1 gene encoding a negative regulator protein against drought stress is identified, wherein stability is controlled by a capsicum annuum ABA sensitive RING Finger E3 ligase 1 (CaASRF1) gene functioning as a positive regulator for ABA signal transfer. Moreover, it is confirmed that the CaAIBZ1 protein functions as a negative regulator for ABA signal transfer and a drought stress resistance-enhancing effect is exhibited in a transgenic in which expression or activation of protein is prohibited, thereby being utilized for improvement of crops and the like available to human beings through expression regulation of CaAIBZ1 gene and especially being expected to be useful for improving productivity of plants. 본 발명은 고추 유래 신규 CaAIBZ1 (Capsicum annuum ASRF1-Interacting bZIP transcription factor 1) 유전자/단백질, 및 이를 이용한 식물체의 건조 스트레스 저항성을 증진시키는 방법에 관한 것이다. 본 발명은 건조 스트레스에 대한 음성적 조절인자 (negative regulator) 단백질을 암호화 하는 CaAIBZ1 유전자를 규명하였으며, 다만 상기 CaAIBZ1 유전자는, ABA 신호전달의 양성 조절자로서 기능하는 CaASRF1(Capsicum annuum ABA Sensitive RING Finger E3 ligase 1) 유전자에 의해 안정성이 조절되는 것을 특징으로 한다. 또한 CaAIBZ1 단백질이 ABA 신호전달의 음성 조절자로 기능하며 상기 단백질의 발현 또는 활성을 억제하는 형질전환 식물체에서 건조 스트레스 저항성 증진 효과를 확인하였는바, CaAIBZ1 유전자의발현 조절을 통해 인류가 이용할 수 있는 작물 등의 개량에 활용할 수 있으며, 특히 식물의 생산성을 향상시키는데 유용하게 이용할 수 있을 것으로 기대된다.
Bibliography:Application Number: KR20180041849