Factors influencing the release of the biological nitrification inhibitor 1,9-decanediol from rice (Oryza sativa L.) roots
Factors influencing the release of the biological nitrification inhibitor 1,9-decanediol from rice (Oryza sativa L.) roots
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影响水稻根部生物硝化抑制剂1,9-癸二醇释放的因素
DOI：
10.1007/s11104-019-03933-1
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发表时间：
2019-01
期刊：
影响因子：
4.9
通讯作者：
Weiming Shi
中科院分区：
文献类型：
--
作者：
Xiannan Zhang;Yufang Lu;Ting Yang;Herbert Kronzucker;Weiming Shi
目的研究水稻（Oryza sativa L.）在亚硝化单胞菌的生物测定中，1，9-癸烷醇（1，9-decanecarboxylic acid，1，9-decanecarboxylic acid）是一种重要的新型生物硝化抑制剂。然而，1，9-癸烷醇的释放特性尚未被研究。本研究旨在确定影响水稻根系释放1，9-癸烷醇的主要因素。MethodsRice植物水培生长在受控环境室6周，收集根系分泌物。研究了氮素形态、氮素浓度、pH值、通气量、细菌接种等因素对渗出液释放的影响。根分泌物的pH值，收集在不同的氮供应制度，进行了测定，和1，9-癸烷醇分泌物中的水平monitored.ResultsNH4+和低pH值的根环境刺激释放的1，9-癸烷醇从水稻根系。当只有部分根系暴露于NH4+时，1，9-癸烷醇的分泌在整个根系中被触发。通气的根环境显着增强1，9-癸烷释放。两个主要的硝化菌（欧洲亚硝化单胞菌和粪亚硝化单胞菌）的存在下，在根培养基刺激释放1，9-癸烷，而flexifiers有没有effect.ConclusionsOur结果表明，1，9-癸烷的释放增强低到中等浓度的NH4+（≤ 1.0 mM），低pH值，和通气的根际。我们的研究提供了硝化细菌诱导的显著的1，9-癸烷醇分泌的第一个证据。
AimsRoot exudates of rice (Oryza sativa L.) can inhibit nitrification in Nitrosomonas bioassays, and 1,9-decanediol was recently identified as an important new biological nitrification inhibitor (BNI) from rice. However, the release characteristics of 1,9-decanediol have not been studied. The present study was designed to identify the major factors influencing the release of 1,9-decanediol from rice roots.MethodsRice plants were hydroponically grown in controlled environment chambers for 6 weeks, and root exudates were collected. Responses of exudate release to nitrogen form and concentration, pH, aeration, and bacterial inoculation were explored. The pH of root exudates, collected under different nitrogen-provision regimes, was determined, and 1,9-decanediol levels in exudates were monitored.ResultsAmmonium (NH4+) and low pH in the root environment stimulated the release of 1,9-decanediol from rice roots. When only a part of the root system was exposed to NH4+, the secretion of 1,9-decanediol was triggered in the whole root system. Aeration of the root environment significantly enhanced 1,9-decanediol release. The presence of two major nitrifiers (Nitrosomonas europaea and Nitrosomonas stercoris) in the root medium stimulated release of 1,9-decanediol, whereas denitrifiers had no effect.ConclusionsOur results demonstrate that the release of 1,9-decanediol is enhanced by low to moderate concentrations of NH4+ (≤1.0 mM), low pH, and aeration of the rhizosphere. Our study provides the first evidence of significant 1,9-decanediol secretion induced by nitrifying bacteria.
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影响因子：
4.9
作者：
Houqing Zeng;Gan Liu;T. Kinoshita;Ruiping Zhang;Yiyong Zhu;Q. Shen;Guohua Xu
通讯作者：
Houqing Zeng;Gan Liu;T. Kinoshita;Ruiping Zhang;Yiyong Zhu;Q. Shen;Guohua Xu
影响因子：
5.3
作者：
Talboys PJ;Owen DW;Healey JR;Withers PJ;Jones DL
通讯作者：
Jones DL
NH4 吸收、根际 pH 值和质膜 H-ATP 酶之间的相互作用决定了高粱根中 BNI 的释放 – 可能的机制和潜在假设
影响因子：
4.9
作者：
Houqing Zeng;Qirong Shen;T Ishikawa;Guntur V Subbarao
通讯作者：
Guntur V Subbarao
高粱的生物硝化抑制（BNI）活性及其表征
影响因子：
4.9
作者：
Zakir, H. A. K. M.;Deshp;e, S. P.;Hash, C. T.;Sahrawat, K. L.
通讯作者：
Sahrawat, K. L.
DOI：
10.1111/nph.14057
发表时间：
2016-11
期刊：
The New phytologist
影响因子：
--
作者：
Li Sun;Yufang Lu;Fangwei Yu;H. Kronzucker;W. Shi
通讯作者：
Li Sun;Yufang Lu;Fangwei Yu;H. Kronzucker;W. Shi