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Effects of low temperatures on sexual reproduction of 'Tainong 1' mango (Mangifera indica)

文献类型： 外文期刊

作者： Huang, Jing-Hao 1 ; Ma, Wei-Hong 3 ; Liang, Guo-Lu 1 ; Zhang, Ling-Yuan 4 ; Wang, Wei-Xing 1 ; Cai, Zi-Jian 2 ; Wen, S 1 ;

作者机构： 1.Southwest Univ, Coll Hort & Landscape, Chongqing 400716, Peoples R China

2.Fujian Acad Agr Sci, Pomol Inst, Fuhzou 350013, Peoples R China

3.Chinese Acad Trop Agr Sci, S Subtrop Crops Res Inst, Zhanjiang 524091, Peoples R China

4.Fujian Coll Tradit Chinese Med, Dept Tradit Chinese Med, Fuhzou 350013, Peoples R China

关键词： Gametophyte;Meiosis;Pollen viability;Fertilization;Embryonic development;Stenospermocarpy

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

ISSN： 0304-4238

年卷期： 2010 年 126 卷 2 期

页码：

收录情况： SCI

摘要： Prevailing ambient temperature during the reproductive phase is one of important factors for seed and fruit set in different plant species. In mango (Mangifera indica L.), natural low temperatures during flowering induced seedless fruits. Here the sexual reproduction process of 'Tainong 1' mango at low temperatures (diurnal maximum temperature <20 degrees C) was studied. For comparison, we also examined this process at "normal" temperatures (diurnal maximum ranging from 25 to 30 degrees C, diurnal average temperature > 20 C). Results showed: natural low temperatures significantly affected pistil and male gametophyte development, resulting in pollen grains with low viability. Meiotic chromosomal irregularities, including univalents, multivalents, laggards, bridges and micronuclei were detected at higher incidences and significantly greater proportions of nucleolus fragmentation and dissolution were detected when temperatures were low. Pollen tube growth was retarded under low temperature stress, either in vivo or in vitro. The virtual absence of sexual reproduction of 'Tainong 1' mango at low temperatures appears to be clue largely to slow growth of pollen tube in vivo and to a low rate of successful fertilization. (C) 2010 Elsevier B.V. All rights reserved.

  • 相关文献

[1]Selection for aborted-seeded longan cultivars. Huang, JS,Xu, XD,Zheng, SQ,Xu, JH. 2001

[2]Abnormal megagametogenesis results in seedlessness of a polyembryonic 'Meiguicheng' orange (Citrus sinensis) mutant created with gamma-rays. Huang, Jing-Hao,Wen, Shou-Xing,Zhang, Yan-Fang,Zhong, Qiu-Zhen,Yang, Ling,Huang, Jing-Hao,Chen, Li-Song,Chen, Li-Song.

[3]Effects of fertilization regimes on tea yields, soil fertility, and soil microbial diversity. Qiu, Shan-Lian,Wang, Li-Min,Huang, Dong-Feng,Lin, Xin-Jian. 2014

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