Studies of Changes in Sugar Accumulation and Lignin Deposition DuringPeach Fruit Endocarp Development

ACTA HORTICULTURAE SINICA ›› 2009, Vol. 36 ›› Issue (8): 1113-1119.

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Studies of Changes in Sugar Accumulation and Lignin Deposition DuringPeach Fruit Endocarp Development

YANG Ai-zhen^{1, 2};ZHANG Zhi-yi²;CAO Ai-juan¹; MENG Hai-ling¹;WANG You-nian^{1, 3*}

(¹Beijing University of Agriculture, Key Laboratory of Urban Agriculture of Ministry of Agriculture, B eijing 102206, China; ²National Engineering Laboratory for Tree Breeding Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education College of Biology, B eijing Forestry University, Beijing 100083, China; ³ Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing 102206, China)

Received:2009-03-30 Revised:2009-07-13 Online:2009-08-25 Published:2009-08-25
Contact: YANG Ai-zhen

Abstract

Abstract:

The experiment was conducted with peach ( Prunus persica L. ) ‘Jingyu’and ‘Okubo’fruits. The sugar content was measured in peach endocarp during the course of the cell division and pit hardening, analyzing the change of sugar accumulation, observing the development of endocarp cell wall through the transmission electron microscope (TEM) and detecting the p rogress of the its lignin deposition by staining with phloroglucinol - HCl reagent. The results showed the cell in the peach endocarp divided continuously, the primary cell wall expanding, the cell organ marginalizing gradually, which was the stage of
sugar rap id accumulation, before 40 days after full blooming. The internal part began red after more than 40 days, the lignin deposition finished after 15 days or so, sugar accumulation and dynamic metabolism decreased rapidly, which showed lignin deposition occurred after the peak of sugar accumulation. Its content had an important effect on endocarp development.

Key words: peach, fruit, endocarp, sugar accumulation, lignin deposition

CLC Number:

S662.2
Q945

YANG Ai-zhen;;ZHANG Zhi-yi;CAO Ai-juan;MENG Hai-ling;WANG You-nian;. Studies of Changes in Sugar Accumulation and Lignin Deposition DuringPeach Fruit Endocarp Development[J]. ACTA HORTICULTURAE SINICA, 2009, 36(8): 1113-1119.

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Studies of Changes in Sugar Accumulation and Lignin Deposition DuringPeach Fruit Endocarp Development

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