Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of <EM>Lycoris longituba</EM>

WANG Lei; TANG Geng-guo; LIU Tong

Volume 26 Issue 4

Aug. 2009

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Article Navigation > Journal of Zhejiang A&F University > 2009 > 26(4): 498-502

WANG Lei, TANG Geng-guo, LIU Tong. Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of Lycoris longituba[J]. Journal of Zhejiang A&F University, 2009, 26(4): 498-502.

Citation:

WANG Lei, TANG Geng-guo, LIU Tong. Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of Lycoris longituba[J]. Journal of Zhejiang A&F University, 2009, 26(4): 498-502.

Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of Lycoris longituba

1.
Department of Landscape Architecture，Jiangsu Polytechnic College of Agriculture and Forestry，Jurong 212400， Jiangsu，China;
2.
College of Landscape Architecture，Nanjing Forestry University，Nanjing 210037，Jiangsu，China;
3.
College of Life Sciences，Shihezi University，Shihezi 832003，Xinjiang，China

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Corresponding author: TANG Geng-guo
Publish Date: 2009-08-20

Abstract

The changes of physiological and biological and ultrastructure of mesophyll cell in four different periods during senescing corolla of Lycoris longituba were studied. Results showed that from florescence to senescence，soluble protein content in petal declined gradually，but malondialdhyde（MDA） content and membrane relative permeability increased gradually. There also was a positive correlation between soluble protein and free amino acid. Additionally，an orderly change in death was exhibited：the amyloplasts in parenchyma dissolved，many plastoglobuli appeared，the vacuole happened distinct swallow，the nucleus became depressed，the karyotheca burst，the plastid disintegrated，a great deal of annulate lamellae and phagosome appeared，and plasmolysis occurred. The morphological changes during the death of all the organelles within the cell showed the typical features of programmed cell death，which corresponded to the physiological changes.［Ch，3 fig. 14 ref.］
- botany,
- Lycoris longituba,
- cut flower,
- petal,
- physiological characteristics,
- cell ultra-structures

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of Lycoris longituba

1. Department of Landscape Architecture，Jiangsu Polytechnic College of Agriculture and Forestry，Jurong 212400， Jiangsu，China;

2. College of Landscape Architecture，Nanjing Forestry University，Nanjing 210037，Jiangsu，China;

3. College of Life Sciences，Shihezi University，Shihezi 832003，Xinjiang，China

Corresponding author: TANG Geng-guo

Publish Date: 2009-08-20

Key words:

Abstract: The changes of physiological and biological and ultrastructure of mesophyll cell in four different periods during senescing corolla of Lycoris longituba were studied. Results showed that from florescence to senescence，soluble protein content in petal declined gradually，but malondialdhyde（MDA） content and membrane relative permeability increased gradually. There also was a positive correlation between soluble protein and free amino acid. Additionally，an orderly change in death was exhibited：the amyloplasts in parenchyma dissolved，many plastoglobuli appeared，the vacuole happened distinct swallow，the nucleus became depressed，the karyotheca burst，the plastid disintegrated，a great deal of annulate lamellae and phagosome appeared，and plasmolysis occurred. The morphological changes during the death of all the organelles within the cell showed the typical features of programmed cell death，which corresponded to the physiological changes.［Ch，3 fig. 14 ref.］

Physiological，biochemical，and ultra-structures of mesophyll cell changes in a senescing corolla of Lycoris longituba

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