| 摘要: |
| 丛枝菌根真菌(arbuscular mycorrhizal fungi, AMF)与宿主植物所形成的互惠共生体系是生态系统中广泛分布的共生体系代表类型之一。AMF除能够促进宿主植物生长发育外,也可以对宿主植物的繁殖过程产生多方面影响。研究宿主植物在AMF共生状态下繁殖策略的变化规律,对于深入理解植物繁殖适合度的变化具有重要理论意义。该文综述了AMF对宿主植物繁殖影响的相关研究,包括AMF的侵染对宿主植物繁殖分配、花部特征、虫媒传粉和花期的影响。目前已有研究发现某些AMF能够促进宿主植物增加繁殖资源投入,提高花朵产生的数量或花冠直径,同时增加花粉数量和花蜜量来影响访花昆虫的行为,以及造成开花提前及花期延长,但其作用的具体机制尚不明确,且因宿主植物的差异,并未有完全统一的结论。然而,由于AMF与植物共生的普遍性,其在植物繁殖过程中发挥的重要作用不可忽略。今后除了在以上各方面开展更深入的研究外,还需在AMF对宿主植物繁殖性状的影响机制、AMF共生条件下植物有性繁殖过程中雌雄功能的资源分配,以及对无性繁殖和后代适应性的影响等方面进行更深入的研究。 |
| 关键词: 丛枝菌根真菌(AMF), 繁殖分配, 花期, 花部综合征, 传粉 |
| DOI：10.11931/guihaia.gxzw202101043 |
| 分类号:Q948 |
| 文章编号:1000-3142(2021)12-2110-11 |
| 基金项目:国家自然科学基金(31470446,31960228)[Supported by the National Natural Science Foundation of China(31470446,31960228)]。 |
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| Research progress on the effects of arbuscular mycorrhizal fungi on plant reproduction |
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WANG Lei1, YAN Xingfu2, TANG Zhanhui1*
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1. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration/School of environment, Northeast Normal
University, Changchun 130117, China;2. College of Biological Science and Engineering/Key Laboratory of Ecological Protection of
Agro-pastoral Ecotones in the Yellow River Basin,National Ethnic Affairs Commission of the People's Republic
of China, Beifang Minzu University, Yinchuan 750021, China
1. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration/School of environment, Northeast Normal
University, Changchun 130117, China; 2. College of Biological Science and Engineering/Key Laboratory of Ecological Protection of
Agro-pastoral Ecotones in the Yellow River Basin,National Ethnic Affairs Commission of the People's Republic
of China, Beifang Minzu University, Yinchuan 750021, China
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| Abstract: |
| The mutually beneficial symbiosis system formed between arbuscular mycorrhizal fungi(AMF)and host plants is one of the representative types of symbiosis systems widely distributed in various ecosystems. In addition to promoting the growth and development of host plant, AMF can also have various effects on the reproduction process of host plants. Studying the changes of reproduction strategies of host plants infected by AMF has important theoretical significance for in-depth understanding of changes in plant reproductive fitness. In this article, we review the related researches on the effects of AMF on the reproduction of host plant, including the effects of AMF infection on reproductive allocation, floral characteristics, insect-pollination and anthesis of host plants. Although current studies have found that AMF can promote the increase of host plant reproduction input, increase the size and number of flowers, increase the number of pollen and nectar secretion, affect the behavior of flower visitors, and cause early flowering and prolonged flowering, the specific mechanism of AMF affecting reproduction of flowering plant is still unclear, and there is currently no unified conclusion due to differences between host plants. However, due to the ubiquity of AMF symbiosis with plant, its important role in the process of plant reproduction cannot be ignored. In the future, more researches should be conducted to investigate the influence mechanism of AMF on the reproductive traits of host plants, the resource allocation of male and female functions in the process of plant sexual reproduction, asexual reproduction and offspring fitness in addition to conducting more in-depth studies in the above-mentioned aspects. |
| Key words: arbuscular mycorrhizal fungi(AMF), reproductive allocation, anthesis, floral traits, pollination |
