Bradyrhizobia and arbuscular mycorrhizal fungi modulate manganese, iron, phosphorus, and polyphenols in soybean (Glycine max (L.) Merr.) under excess zinc
Bradyrhizobia and arbuscular mycorrhizal fungi modulate manganese, iron, phosphorus, and polyphenols in soybean (Glycine max (L.) Merr.) under excess zinc
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DOI：
10.1016/j.envexpbot.2017.01.011
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发表时间：
2017-05-01
影响因子：
5.7
通讯作者：
Sakamoto, Kazunori
中科院分区：
文献类型：
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作者：
Ibiang, Young Bassey;Mitsumoto, Hiroko;Sakamoto, Kazunori
研究了施锌土壤上接种慢生根瘤菌（R）和丛枝菌根（AM）对大豆锰、铁、磷和多酚的影响。在一个完全随机化的3 × 4因子中，在温室中设置了实验处理- Zn添加（0、200和400 mg Zn kg（-1）土壤）和接种（未接种对照、R、AM和R+AM双重接种）。锌处理增加了根和地上部的锌含量、根中的铁含量、根菌根化频率、根中的磷含量。Mn的转运，但减少铁的转运，锰在根中，和总多酚。共生体影响植物中微量营养素的平衡。菌根接种增加锌在地上部，调制锰和铁在地上部和根;在整个植物串扰的锌，锰，铁的状态。在双重接种中，400 mg·kg ~（-1）锌处理对锰的转运有协同作用。在双重接种的锌锰铁营养的调制支持减少落叶的累积数量，并增加叶绿度，地上部P，和根多酚，得到更高的地上部生物量。我们的研究结果表明，有可能优化作物生产和生物接种的结果，针对锰和铁的状态（根，芽，易位，与锌的比例）在培养过程中过量锌。(C)2017爱思唯尔B. V.保留所有权利。
The effect of Bradyrhizobia (R) and Arbuscular mycorrhiza (AM) on manganese, iron, phosphorus, and polyphenols was investigated in soybean cultivated in Zn treated soils. In a completely randomized 3 x 4 factorial, the experimental treatments - Zn addition (0, 200, and 400 mg Zn kg(-1) of soil), and Inoculation (uninoculated control, R, AM, and R+AM dual inoculation) were set up in the greenhouse. Zinc treatment increased Zn in roots and shoots, Fe in roots, frequency of root mycorrhization, P in root, and. Mn translocation; but decreased Fe translocation, Mn in root, and total polyphenols. Symbionts effected micronutrient balancing in the plants. Mycorrhizal inoculants increased Zn in shoots, and modulated Mn and Fe in shoots and roots; within the whole-plant crosstalk in Zn, Mn, and Fe status. In dual inoculation, synergy for much enhanced Mn translocation was indicated in 400 mg Zn kg(-1) treatment. Modulations of Zn-Mn-Fe nutrition in dual inoculation was supported with a reduction in cumulative number of fallen leaves, and increases in leaf greenness, shoot P, and root polyphenols, to give higher shoot biomass. Our results suggest the possibility of optimizing the crop production and bio-inoculation outcomes by targeting Mn and Fe status (in roots, shoots, translocation, and ratios with Zn) during cultivation under excess Zn. (C) 2017 Elsevier B.V. All rights reserved.