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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.49 No.6
- 발행연도
- 2008.12
- 수록면
- 376 - 380 (5page)
이용수
초록· 키워드
오류제보하기
Roles of cell wall hydrolases in relation to petal expansion and subsequent senescence in roses were studied. Experiments were conducted in a laboratory at the Indian Agricultural Research Institute, New Delhi, during the year 2005-07. Two cultivars of cut- roses (Rosa hybrida L.), ‘Grandgala’ and ‘First Red’ were obtained from a commercial grower (German Garden), Dharuheda, Haryana, India. Flower stems were harvested at six different developmental stages. Petals were separated from different petal whorls of the flower, outermost to innermost [7 whorls each in both ‘Grandgala’ and ‘First Red’] from all the developmental stages. Opening of the flower bud was accompanied by increased activity of cell wall hydrolases. Activities of polygalactouronase (PG) and pectin methyl esterase (PME) increased up to stage 5 in flower bud development in all the petal whorls and declined thereafter. Higher levels of PME and PG activity were correlated with the flower bud development and petal expansion. The highest level of ethylene production coincided with the peak activity of both enzymes in expanding petals. The PME activity appeared to create an acidic environment within the cell wall that promoted the action of PG, which might cause cell wall loosening and allow turgor driven petal expansion. It seems that both ethylene dependent (S3-S6) and ethylene independent (S1-S2) activities of PME and PG are parts of a highly coordinated cell death program, which follows initial cell wall loosening, expansion, and finally termination of petal life.
목차
Abstract
Introduction
Materials and Methods
Results
Discussion
Acknowledgements
Literature Cited
참고문헌 (21)
참고문헌 신청
1. [학술지(정기간행물)] - Carpita, N.C. / 1993 / Structural models of the primary cell walls in flowering plants. Consistency of molecular structure with the physical properties of walls during growth / Plant J 3 : 1 ~ 30
2. [학술지(정기간행물)] - De Vetten, N.C. / 1990 / Cell wall changes during the expansion and senescence of carnation (Dianthus caryophyllus) petals / Plant Physiol 78 : 447 ~ 454
3. [학술지(정기간행물)] - Fry, C.C. / 1986 / Cross linking of matrix polymer in growing cell wall of angiosperms / Ann. Rev. Plant Physiol 37 : 165 ~ 186
4. [학술지(정기간행물)] - Giovannoni, J.J. / 1992 / Polygalactouronase and tomato fruit ripening / Hort. Rev 13 : 67 ~ 100
5. [단행본] - Goldberg, J.J. / 1996 / Methyl esterification, deesterification and gelation of pectins in the primary cell wall in : Pectins and pectinases. Progress in Biotechnology / Elsevier Science : 151 ~ 172
2. [학술지(정기간행물)] - De Vetten, N.C. / 1990 / Cell wall changes during the expansion and senescence of carnation (Dianthus caryophyllus) petals / Plant Physiol 78 : 447 ~ 454
3. [학술지(정기간행물)] - Fry, C.C. / 1986 / Cross linking of matrix polymer in growing cell wall of angiosperms / Ann. Rev. Plant Physiol 37 : 165 ~ 186
4. [학술지(정기간행물)] - Giovannoni, J.J. / 1992 / Polygalactouronase and tomato fruit ripening / Hort. Rev 13 : 67 ~ 100
5. [단행본] - Goldberg, J.J. / 1996 / Methyl esterification, deesterification and gelation of pectins in the primary cell wall in : Pectins and pectinases. Progress in Biotechnology / Elsevier Science : 151 ~ 172
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