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园艺学报 ›› 2008, Vol. 35 ›› Issue (4): 469-474.

• 果树 •    下一篇

缺铁和过量重碳酸盐胁迫下丛枝菌根真菌对枳生长的影响

王明元1;夏仁学1*;王幼珊2;周开兵3;王 鹏1;倪海枝1   

  1. (1华中农业大学园艺植物生物学教育部重点实验室,武汉 430070;2北京市农林科学院植物营养与资源研究所,北京 100097;3海南大学生命科学与农学院,海口 570228)
  • 收稿日期:2007-08-13 修回日期:2007-12-25 出版日期:2008-04-25 发布日期:2008-04-25
  • 通讯作者: 夏仁学

Effects of Arbuscular Mycorrhizal Fungi on Growth of Poncirus trifoliate Seedlings under Iron Deficiency and Heavy Bicarbonate Stresses

WANG Ming-yuan1, XIA Ren-xue1*, WANG You-shan2, ZHOU Kai-bing3, WANG Peng1, and NI Hai-zhi1   

  1. (1Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; 2 Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; 3 College of Life Science and Agronomy, Hainan University, Haikou 570228, China)
  • Received:2007-08-13 Revised:2007-12-25 Online:2008-04-25 Published:2008-04-25
  • Contact: XIA Ren-xue

摘要: 采用盆栽沙培试验,研究了缺铁及重碳酸盐胁迫下丛枝菌根(arbuscular mycorrhiza, AM)真菌地表球囊霉(Glomus versiforme)对枳[Poncirus trifoliata (L.) Raf.]实生苗生长及植株铁营养的影响。结果表明,在pH 7.0和pH 8.0的重碳酸盐胁迫下,与未接种处理相比,接种AM真菌显著增加了枳实生苗的株高、茎粗、地上部和地下部干样质量,并且明显促进了叶片叶绿素和活性铁的积累,显著提高了叶片Fe/P的比值,降低了叶片50(10P+K)/Fe的比值,减轻了枳因缺铁引起的黄化现象。

关键词: 柑橘, 枳, 丛枝菌根真菌, 实生苗, 重碳酸盐, 活性铁

Abstract:

Effects of arbuscular mycorrhiza (AM) fungus (Glomus versiforme) on growth and iron nutriton of trifoliate orange [Poncirus trifoliata (L.) Raf.] were investigated with a sand culture under iron deficiency and heavy bicarbonate stress. Results showed that the colonization of Glomus versiforme significantly increased the plant height, stem diameter, shoot and root dry mass under bicarbonate stress at pH 7.0 and pH 8.0. AM fungus inoculation significantly enhanced the accumulation of chlorophyll and active iron, and increased Fe/P, and decreased 50(10P+K)/Fe ratios, suggesting that arbuscular mycorrhizal fungi alleviate chlorosis caused by iron-deficiency in trifoliate orange.

Key words: citrus, Poncirus trifoliata (L.) Raf, arbuscular mycorrhizal fungi, trifoliate orange, bicarbonate, Active iron

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