애기장대 칼모듈린 결합 단백질 AtCBP63을 발현시킨 형질전환 감자의 무름병 저항성 증가

• 영문명: AtCBP63, a Arabidopsis Calmodulin-binding Protein 63, Enhances Disease Resistance Against Soft Rot Disease in Potato
• 발행기관: (사)한국식물생명공학회
• 저자명: 전현진(Hyun Jin Chun) 박형철(Hyeong Cheol Park) 구영민(Young Min Goo) 김태원(Tae Won Kim) 조광수(Kwang Soo Cho) 조현설
• 간행물 정보: 『Journal of Plant Biotechnology』38권 1호, 62~68쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2011.03.31

영문 초록

Calmodulin (CaM), a Ca2+ binding protein in eukaryotes, mediates cellular Ca2+ signals in response to a variety of biotic and abiotic external stimuli. The Ca2+-bound CaM transduces signals by modulating the activities of numerous CaM-binding proteins. As a CaM binding protein, AtCBP63 (Arabidopsis thaliana CaM-binding protein 63 kD) has been known to be positively involved in plant defense signaling pathway. To investigate the pathogen resistance function of AtCBP63 in potato, we constructed transgenic potato (Solanum tuberosum L.) plants constitutively overexpressing AtCBP63 under the control of cauliflower mosaic virus (CaMV) 35S promoter. The overexpression of the AtCBP63 in potato plants resulted in the high level induction of pathogenesis-related (PR) genes such as PR-2, PR-3 and PR-5. In addition, the AtCBP63 transgenic potato showed significantly enhanced resistance against a pathogen causing bacterial soft rot, Erwinia carotovora ssp. Carotovora (ECC). These results suggest that a CaM binding protein from Arabidopsis, AtCBP63, plays a positive role in pathogen resistance in potato.

키워드

Calmodulin Disease resistance Pathogenesisrelated gene Potato Soft rot