芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

刘鹏; 周开兵; 王爽; 王丽文; 潘学峰

doi:10.15886/j.cnki.rdswxb.2010.04.012

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芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

刘鹏, 周开兵, 王爽, 王丽文, 潘学峰

文章导航 > 热带生物学报 > 2010 > 1(4): 350-356

刘鹏, 周开兵, 王爽, 王丽文, 潘学峰. 芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应[J]. 热带生物学报, 2010, 1(4): 350-356. doi: 10.15886/j.cnki.rdswxb.2010.04.012

引用本文:

LIU Peng, ZHOU Kai-bing, WANG Shuang, WANG Li-wen, PAN Xue-feng. Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2010, 1(4): 350-356. doi: 10.15886/j.cnki.rdswxb.2010.04.012

Citation:

LIU Peng, ZHOU Kai-bing, WANG Shuang, WANG Li-wen, PAN Xue-feng. Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation[J]. Journal of Tropical Biology, 2010, 1(4): 350-356. doi: 10.15886/j.cnki.rdswxb.2010.04.012

芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

doi: 10.15886/j.cnki.rdswxb.2010.04.012

1. 海南大学热带作物种质资源保护与开发利用教育部重点实验室;
2. 海南大学学报编辑部, 海南海口 570228

基金项目:

海南省自然科学基金项目资助(807005)

详细信息

第一作者:
刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

通信作者:
周开兵，博士，副教授，E-mail：kaibingzhou0528@163.com

中图分类号: S667.7；Q945.78

Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation

1. Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources Hainan University, Ministry of Education, Haikou 570228, China;
2. Division of Journal Editor, Hainan University, Haikou 570228, China

摘要: 以‘台农一号’芒果(Mangifera indica L.cv.Tainong No.1)盆栽苗离体叶片为试材,研究在增强UV-B辐射条件下芒果不同叶龄叶片的损伤表现和保护响应。结果表明:芒果不同叶龄叶片经增强UV-B辐射处理后,幼叶的相对电导率和MDA含量急剧升高,叶绿素a/b值急剧下降,可溶性蛋白含量发生不稳定地升降变化;而老叶的这4个指标则变化较为缓慢;成年叶表现居中。不同叶龄叶片的叶绿素含量基本无显著变化,幼叶对增强UV-B辐射处理最敏感,老叶则不敏感,成年叶居中。幼叶的SOD和POD活性总体表现出下降趋势,而老叶的维生素C、还原型GSH、类胡萝卜素和类黄酮含量却在增强UV-B辐射处理全程表现增强,且幼叶均表现最低,老叶除后期类黄酮含量降低外均表现最高,成年叶居中。叶片CAT活性在中后期例外地表现为按照老叶、幼叶和成年叶递增。总体上,增强UV-B辐射处理下不同叶龄叶片的损伤表现与其保护能力变化一致。
- 芒果 /
- 叶龄 /
- 叶片 /
- 增强UV-B辐射 /
- 损伤 /
- 保护
Abstract: The detached leaves from the potted young trees of mango,Mangifera indica L. cv. Tainong No. 1,were used to study the damages and the protection response of the leaves with different age under the enhanced UV-B radiation. The results showed that the relative conductivity and the content of MDA of the young leaves increased quickly,the ratio of chlorophyll a/b of the young leaves decreased sharply,the content of soluble protein of the young leaves changed unsteadily,all the 4 indicators of the old leaves mentioned above changed gently,the adult leaves performed medially; the content of chlorophyll in the leaves with different age changed insignificantly,the young leaves were the most sensitive to the enhanced UV-B radiation,the old leaves were not sensitive and the adult leaves performed medially; the activities of SOD and POD decreased; with the enhance of UV-B radiation,the contents of VitC,reduced GSH,carotenoids and flavonoids in old leaves increased,the adult leaves performed medially; the activity of CAT got higher and higher in turn of the old,the young and the adult leaves during the middle and late periods exceptionally. In general,the damages of the leaves with different age were in line with their protection abilities under the enhanced UV-B radiation.
- Mango /
- leaves with age /
- leaves /
- enhanced UV-B radiation /
- damages /
- protections

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芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

doi: 10.15886/j.cnki.rdswxb.2010.04.012

1. 海南大学热带作物种质资源保护与开发利用教育部重点实验室;

2. 海南大学学报编辑部, 海南海口 570228

基金项目:

海南省自然科学基金项目资助(807005)

作者简介:
刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

通讯作者: 周开兵，博士，副教授，E-mail：kaibingzhou0528@163.com

收稿日期: 2010-11-01

中图分类号: S667.7；Q945.78

关键词:

芒果 /

叶龄 /

叶片 /

增强UV-B辐射 /

损伤 /

保护

摘要: 以‘台农一号’芒果(Mangifera indica L.cv.Tainong No.1)盆栽苗离体叶片为试材,研究在增强UV-B辐射条件下芒果不同叶龄叶片的损伤表现和保护响应。结果表明:芒果不同叶龄叶片经增强UV-B辐射处理后,幼叶的相对电导率和MDA含量急剧升高,叶绿素a/b值急剧下降,可溶性蛋白含量发生不稳定地升降变化;而老叶的这4个指标则变化较为缓慢;成年叶表现居中。不同叶龄叶片的叶绿素含量基本无显著变化,幼叶对增强UV-B辐射处理最敏感,老叶则不敏感,成年叶居中。幼叶的SOD和POD活性总体表现出下降趋势,而老叶的维生素C、还原型GSH、类胡萝卜素和类黄酮含量却在增强UV-B辐射处理全程表现增强,且幼叶均表现最低,老叶除后期类黄酮含量降低外均表现最高,成年叶居中。叶片CAT活性在中后期例外地表现为按照老叶、幼叶和成年叶递增。总体上,增强UV-B辐射处理下不同叶龄叶片的损伤表现与其保护能力变化一致。

English Abstract

Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation

1. Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources Hainan University, Ministry of Education, Haikou 570228, China;

2. Division of Journal Editor, Hainan University, Haikou 570228, China

Received Date: 2010-11-01

Keywords:

Abstract: The detached leaves from the potted young trees of mango,Mangifera indica L. cv. Tainong No. 1,were used to study the damages and the protection response of the leaves with different age under the enhanced UV-B radiation. The results showed that the relative conductivity and the content of MDA of the young leaves increased quickly,the ratio of chlorophyll a/b of the young leaves decreased sharply,the content of soluble protein of the young leaves changed unsteadily,all the 4 indicators of the old leaves mentioned above changed gently,the adult leaves performed medially; the content of chlorophyll in the leaves with different age changed insignificantly,the young leaves were the most sensitive to the enhanced UV-B radiation,the old leaves were not sensitive and the adult leaves performed medially; the activities of SOD and POD decreased; with the enhance of UV-B radiation,the contents of VitC,reduced GSH,carotenoids and flavonoids in old leaves increased,the adult leaves performed medially; the activity of CAT got higher and higher in turn of the old,the young and the adult leaves during the middle and late periods exceptionally. In general,the damages of the leaves with different age were in line with their protection abilities under the enhanced UV-B radiation.

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芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

doi: 10.15886/j.cnki.rdswxb.2010.04.012

第一作者: 刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

通信作者: 周开兵，博士，副教授，E-mail：kaibingzhou0528@163.com

Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation

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芒果不同叶龄叶片在增强UV-B辐射处理下的损伤和保护响应

doi: 10.15886/j.cnki.rdswxb.2010.04.012

1. 海南大学 热带作物种质资源保护与开发利用教育部重点实验室; 2. 海南大学 学报编辑部, 海南 海口 570228

作者简介: 刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

通讯作者: 周开兵，博士，副教授，E-mail：kaibingzhou0528@163.com

English Abstract

Damages and Protection Responses of Mangifera indica L. Leaves with Different Age under Enhanced UV-B Radiation

1. Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources Hainan University, Ministry of Education, Haikou 570228, China; 2. Division of Journal Editor, Hainan University, Haikou 570228, China

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目录

第一作者:
刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

通信作者:
周开兵，博士，副教授，E-mail：kaibingzhou0528@163.com

1. 海南大学热带作物种质资源保护与开发利用教育部重点实验室;

2. 海南大学学报编辑部, 海南海口 570228

作者简介:
刘鹏（1982－），男，山西大同人，海南大学农学院2007级硕士研究生.

1. Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources Hainan University, Ministry of Education, Haikou 570228, China;

2. Division of Journal Editor, Hainan University, Haikou 570228, China