| 土著AM真菌对荔枝实生苗生长和光合特性的影响 |
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| 引用本文： | 常河,朱红惠,陈杰忠,姚青.土著AM真菌对荔枝实生苗生长和光合特性的影响[J].热带作物学报,2009,30(7):912-917. |
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| 作者姓名： | 常河 朱红惠 陈杰忠 姚青 |
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| 作者单位： | 1. 华南农业大学园艺学院,广州,510070
2. 广东省微生物研究所,广州,510070 |
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| 基金项目： | 广东省自然科学基金研究团队项目，公益性行业(农业)科研专项 |
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| 摘 要： | 通过施用苯菌灵抑制丛枝菌根(arbuscuIar mycorrhiza,AM)真菌的侵染.研究土著AM真菌对'白蜡'和'黑叶'2种荔枝实生苗的营养生长、矿质养分和光合特性的影响.盆栽试验结果表明:苯菌灵处理显著地降低了'白蜡'和'黑叶'的菌根侵染率,品种间也存在显著差异;苯菌灵处理抑制了'白蜡'的生物量和株高,但是提高了'黑叶'的相应指标,两者的菌根依赖性分别8.22%和-10.50%;苯菌灵处理降低了2个品种的吸磷量和吸钾量,降低'白蜡'的吸氮量,而增加'黑叶'的吸氮量;苯菌灵处理对光合参数的影响与其对生物量的影响相同,即降低'白蜡'的叶绿素含量、净光合速率、蒸腾速率和气孔导度,而增加'黑叶'的相应指标.这些结果表明,土著AM真菌对荔枝实生苗生长的影响与其对光合作用的影响密切相关,不同的品种对土著AM真菌侵染的反应存在很大的差异.
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| 关 键 词： | 荔枝 土著AM真菌 营养生长 光合特性 |
Influence of Indigenous Arbuscular Mycorrhizal Fungi on Growth and Photosynthesis of Litchi Seedlings |
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| Chang He,Zhu Honghui,Chen Jiezhong and Yao Qing.Influence of Indigenous Arbuscular Mycorrhizal Fungi on Growth and Photosynthesis of Litchi Seedlings[J].Chinese Journal of Tropical Crops,2009,30(7):912-917. |
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| Authors: | Chang He Zhu Honghui Chen Jiezhong and Yao Qing |
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| Institution: | Chang He1,Zhu Honghui2,Chen Jiezhong1,Yao Qing1 1 College of Horticulture,South China Agricultural University,Guangzhou 510642,2 Guangdong Institute of Microbiology,Guangzhou 510070 |
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| Abstract: | Benomyl was applied to suppress arbuscular mycorrhizal(AM) fungal colonization in litchi(Litchi chinensis Sonn.) seedlings of 2 cultivars,'Baila' and 'Heiye',to observe their vegetative growth,mineral nutrient content and photosynthesis under indigenous AM fungi.Pot experiment indicated that the mycorrhizal colonizations of 'Baila' and 'Heiye' were significantly reduced by benomyl with a significant difference between cultivars.Benomyl application inhibited the biomass and plant height of 'Baila',but increa... |
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| Keywords: | litchi indigenous AM fungi vegetative growth photosynthetic characteristics |
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