지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.10
- 수록면
- 773 - 786 (14page)
- DOI
- 10.14348/molcells.2017.0127
이용수
초록· 키워드
오류제보하기
The loss of green coloration via chlorophyll (Chl) degradation typically occurs during leaf senescence. To date, many Chl catabolic enzymes have been identified and shown to interact with light harvesting complex II to form a Chl degradation complex in senescing chloroplasts; this complex might metabolically channel phototoxic Chl catabolic intermediates to prevent oxidative damage to cells. The Chl catabolic enzyme 7-hydroxymethyl Chl a reductase (HCAR) converts 7-hydroxymethyl Chl a (7-HMC a) to Chl a. The rice (Oryza sativa) genome contains a single HCAR homolog (OsHCAR), but its exact role remains unknown. Here, we show that an oshcar knockout mutant exhibits persistent green leaves during both dark-induced and natural senescence, and accumulates 7-HMC a and pheophorbide a (Pheo a) in green leaf blades. Interestingly, both rice and Arabidopsis hcar mutants exhibit severe cell death at the vegetative stage; this cell death largely occurs in a light intensity-dependent manner. In addition, 7-HMC a treatment led to the generation of singlet oxygen (1O2) in Arabidopsis and rice protoplasts in the light. Under herbicide-induced oxidative stress conditions, leaf necrosis was more severe in hcar plants than in wild type, and HCAR-overexpressing plants were more tolerant to re-active oxygen species than wild type. Therefore, in addition to functioning in the conversion of 7-HMC a to Chl a in senescent leaves, HCAR may play a critical role in protecting plants from high light-induced damage by preventing the accumu-lation of 7-HMC a and Pheo a in developing and mature leaves at the vegetative stage.
목차
등록된 정보가 없습니다.
참고문헌 (48)
참고문헌 신청
Barry, C. S. / 2008 / Amino acid substitutions in homologs of the STAY-GREEN protein are responsible for the green-flesh and chlorophyll retainer mutations of tomato and pepper / Plant Physiol 147:179~187
Greenberg, J. T. / 1994 / Programmed cell death in plants : a pathogen-triggered response activated coordinately with multiple defense functions / Cell 77:551~563
한수현 / 2012 / Leaf Variegation in the Rice zebra2 Mutant Is Caused by Photoperiodic Accumulation of Tetra-Cis-Lycopene and Singlet Oxygen / Molecules and Cells 33(1):87~97
Horie, Y. / 2009 / Participation of chlorophyll b reductase in the initial step of the degradation of light-harvesting chlorophyll a/b-protein complexes in Arabidopsis / J. Biol. Chem 284:17449~17456
Hörtensteiner, S. / 2009 / Stay-green regulates chlorophyll and chlorophyll-binding protein degradation during senescence / Trends Plant Sci 14:155~162
Greenberg, J. T. / 1994 / Programmed cell death in plants : a pathogen-triggered response activated coordinately with multiple defense functions / Cell 77:551~563
한수현 / 2012 / Leaf Variegation in the Rice zebra2 Mutant Is Caused by Photoperiodic Accumulation of Tetra-Cis-Lycopene and Singlet Oxygen / Molecules and Cells 33(1):87~97
Horie, Y. / 2009 / Participation of chlorophyll b reductase in the initial step of the degradation of light-harvesting chlorophyll a/b-protein complexes in Arabidopsis / J. Biol. Chem 284:17449~17456
Hörtensteiner, S. / 2009 / Stay-green regulates chlorophyll and chlorophyll-binding protein degradation during senescence / Trends Plant Sci 14:155~162
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
벼 재배지 논물의 수질특성과 Chl-a 변동 요인의 통계적 분석
한국환경과학회지
2019 .11
-
수문기상예측자료를 활용한 대청호 Chl-a 3개월 선행예측연구
한국습지학회지
2021 .01
-
하계 동중국해 북부해역에서 종속영양박테리아의 분포 특성 및 미생물 먹이망의 역할
환경생물
2023 .03
-
연안 해역의 클로로필 농도 추정을 위한 초분광 및 위성 클로로필 영상 비교 연구
대한원격탐사학회지
2020 .01
-
농업용 호소의 조류 발생 진단을 위한 간편 도구의 개발
환경생물
2019 .01
-
Comprehensive transcriptome analysis discovers novel candidate genes related to leaf color in a Lagerstroemia indica yellow leaf mutant
Genes & Genomics
2015 .01
-
Tomato Yellow Leaf Curl China Virus Impairs Photosynthesis in the Infected Nicotiana benthamiana with βC1 as an Aggravating Factor
The Plant Pathology Journal
2019 .10
-
남세균 제어를 위한 동물플랑크톤(Daphnia magna)과 패류(Unio douglasiae)의 단독 및 혼합적용
생태와 환경
2015 .01
-
금강수계 백제보 건설 전 · 후의 화학적 수질특성 및 경험적 모델 분석
환경생물
2019 .01
-
서낙동강에서 동·식물플랑크톤의 총유기탄소 기여율 변동 분석
한국환경과학회지
2020 .07
-
Overview of Chlorophyll-a Concentration Retrieval Algorithms from Multi-Satellite Data
한국지구과학회지
2019 .01
-
Sugar metabolism as input signals and fuel for leaf senescence
Genes & Genomics
2019 .01
-
인도양 쌍극진동 변동에 따른 위성에서 추정된 표층 클로로필-a 농도 변화 연구
대한원격탐사학회지
2017 .12
-
하천 녹조 모니터링을 위한 드론 다중분광영상의 분광지수 적용성 평가
대한원격탐사학회지
2021 .01
-
NPS-WET 습지 모델링을 이용한 습지 증설에 따른 수질개선 효과 분석
한국습지학회지
2017 .01
-
팔당호에서 분리한 남조 Anabaena circinalis의 지오스민 생산 잠재성
생태와 환경
2017 .01
-
A comparison of photosynthesis measurements by O<sub>2</sub> evolution, <sup>14</sup>C assimilation, and variable chlorophyll fluorescence during light acclimatization of the diatom Coscinodiscus granii
Algae
2015 .01
-
Identification of a novel candidate gene for rolled leaf in rice
Genes & Genomics
2016 .01
-
Comparison of Sound Absorption Performance between Fresh and Air-dried Leaves by Leaf Composition in Quercus glauca
한국환경과학회지
2023 .01
-
A Proposed Catabolic Pathway for the Degradation of Naphthalene in Pseudomonas taeanensis MS-3
한국미생물학회 학술대회논문집
2021 .08
이 논문의 저자 정보
최근 본 자료
댓글(0)
0