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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.50 No.6
- 발행연도
- 2009.12
- 수록면
- 582 - 587 (6page)
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초록· 키워드
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We report on the seasonal changes of soluble sugar accumulation and several enzyme activities related to sugar metabolism, in two Asian pear cultivars (Pyrus pyrifolia) cultivars ‘Niitaka’ and ‘Whangkeumbae’. Soluble sugar content increased as the fruit developed and its total contents in matured fruits were 104.6 and 95.1 ㎎ㆍg?¹ fresh weight for ‘Niitaka’ and ‘Whangkeumbae’, respectively. However, the fructose-glucose-sucrose-sorbitol ratio was not significantly changed. Sorbitol-6-phosphate dehydrogenase activity was maintained at high level in leaves and low in fruits throughout the fruit development, although the enzyme activity highly fluctuated in young and mature fruits. NAD-dependent sorbitol dehydrogenase activity increased sigmoidally in both leaves and fruits during fruit development, and correlated with accumulation of total sugar in fruits. Sucrose synthase and sucrose phosphate synthase (SPS) activities remained low in leaves, but higher with two peak fluctuations in fruits. The change of soluble sugar contents positively correlated with SPS activity, based on the seasonal fluctuation of SPS activity and soluble sugar accumulation.
목차
Abstract
Introduction
Material and Methods
Results
Discussion
Acknowledgement
Literature Cited
참고문헌 (26)
참고문헌 신청
Hubbard, N.L / 1989 / Sucrose phosphate synthase and acid invertase as determinants of sucrose concentration in developing muskmelon (Cucumis melo L.) fruits / Plant Physiol 91:1527~1534
Kanayama, Y / 1992 / Nucleotide sequence of a cDNA encoding NADP-sorbitol-6-phosphate dehydrogenase from apple / Plant Physiol 100:1607~1608
Kim, H / 2007 / Expression and cloning of the full-length cDNA for sorbitol-6-phosphate dehydrogenase and NAD-dependent sorbitol dehydrogenase from pear (Pyrus pyrifolia N.) / Sci. Hort 112:406~412
Kim, Y.S / 1985 / A new mid-season pear cultivar, ‘Whangkeumbae’ with high soluble solid content and beautiful appearance / Res. Rep. RDA (Hort.) 27:103~106
Loescher, W.H / 1982 / Sorbitol metabolism and sink-source interconversion in developing apple leaves / Plant Physiol 70:335~339
Kanayama, Y / 1992 / Nucleotide sequence of a cDNA encoding NADP-sorbitol-6-phosphate dehydrogenase from apple / Plant Physiol 100:1607~1608
Kim, H / 2007 / Expression and cloning of the full-length cDNA for sorbitol-6-phosphate dehydrogenase and NAD-dependent sorbitol dehydrogenase from pear (Pyrus pyrifolia N.) / Sci. Hort 112:406~412
Kim, Y.S / 1985 / A new mid-season pear cultivar, ‘Whangkeumbae’ with high soluble solid content and beautiful appearance / Res. Rep. RDA (Hort.) 27:103~106
Loescher, W.H / 1982 / Sorbitol metabolism and sink-source interconversion in developing apple leaves / Plant Physiol 70:335~339
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