CHEN Jianmiao,CAO Yingjian,QU Jinwang,et al.Effects of Trichoderma harzianum on Gas Exchange and Growth of Lolium perenne L.[J].Northern Horticulture,2023,(04):53-59.[doi:10.11937/bfyy.20222412]
哈茨木霉对黑麦草气体交换和生长发育的影响
- Title:
- Effects of Trichoderma harzianum on Gas Exchange and Growth of Lolium perenne L.
- 文献标志码:
- A
- 摘要:
- 以黑麦草为试材,采用接种和未接种哈茨木霉菌的方法,研究了哈茨木霉定殖对黑麦草的生长发育、根系浸染共生程度、叶绿素荧光参数、气体交换特性、叶绿素含量以及生物量累积的影响,以期为哈茨木霉在黑麦草生产实际中的应用提供参考依据。结果表明:1)哈茨木霉的定殖显著改善了黑麦草的气孔导度和蒸腾速率,并显著提高了水分亏缺;2)提高了黑麦草在光系统Ⅱ处可调节性的能量耗散的非光化学淬灭量子产量;3)显著增加了黑麦草的净光合速率,从而显著增加了生物量的累计,促进了分蘖。因此,哈茨木霉的定殖可以促进黑麦草的生长发育。
- Abstract:
- Taking Lolium perenne as experimental material,the effects of Trichoderma harzianum colonization on the growth and development,the degree of root impregnation symbiosis,chlorophyll fluorescence parameters,gas exchange characteristics,chlorophyll content and biomass accumulation of L.perenne were studied by using the methods of inoculation and non-inoculation,in order to provide reference for the application of T.harzianum in the production of L.perenne.The results showed that,1) T.harzianum inoculation significantly improved the stomatal conductance (Cond) and transpiration rate (Tr) of L.perenne,and significantly increased the water deficit (VpdL).2) T.harzianum inoculation the quantum yield (Y (NPQ)) of regulatory energy dissipation of L.perenne in PSⅡ.3) T.harzicum inoculation significantly increased the net photosynthetic rate (Pn),biomass accumulation,and tiller numbers of L.perenne.In conclusion,T.harzianum could be used to promote the growth and development of ryegrass.
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备注/Memo
第一作者简介:陈建妙(1996-),女,硕士研究生,研究方向为植物逆境生理和分子生物学。E-mail:chenjianmiaocjm@foxmail.com.责任作者:吴楚(1965-),男,博士,教授,现主要从事植物生理生态学等研究工作。E-mail:wuchu08@yangtzeu.edu.cn.基金项目:国家自然科学基金资助项目(31870378)。收稿日期:2022-06-12