|本期目录/Table of Contents|

[1]侯殿明.丛枝菌根真菌对盐渍土辣椒生长、生理代谢及土壤无机磷组分的影响[J].江苏农业科学,2022,50(15):101-107.
 Hou Dianming,et al.Effects of arbuscular mycorrhizal fungi on growth,physiological metabolism and soil inorganic phosphorus components of pepper in saline soil[J].Jiangsu Agricultural Sciences,2022,50(15):101-107.
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丛枝菌根真菌对盐渍土辣椒生长、生理代谢及土壤无机磷组分的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第15期
页码:
101-107
栏目:
园艺与林学
出版日期:
2022-08-05

文章信息/Info

Title:
Effects of arbuscular mycorrhizal fungi on growth,physiological metabolism and soil inorganic phosphorus components of pepper in saline soil
作者:
侯殿明
河南农业职业学院,河南中牟 451450
Author(s):
Hou Dianminget al
关键词:
丛枝菌根真菌(AMF)辣椒酶活基因表达
Keywords:
-
分类号:
S182;S641.306
DOI:
-
文献标志码:
A
摘要:
丛枝菌根真菌(AMF)是土壤中重要的功能性微生物,然而关于AMF对辣椒生长发育和土壤磷养分活化的效果知之甚少。采用盐渍土为培养基质进行盆栽试验,设置5个菌剂施用量水平(0、20、40、60、80 g/kg),分别记为CK、AM20、AM40、AM60、AM80,探索AMF菌剂施用量对辣椒生长发育、渗透物质、氧化酶基因及土壤无机磷组分的影响。结果表明,AMF对AM处理(AM20、AM40、AM60、AM80)根系侵染率为49.73%~68.55%。与CK处理相比,AM处理整体促进了辣椒干物质量、农艺性状及叶绿素含量等生长参数,增加了可溶性糖、植株磷含量,降低了丙二醛累积,且上调了氧化酶基因(Cu/Zn-SOD、CAT、POD)及磷吸收基因(NtPT5)的表达。在无机磷组分中,与CK处理相比,AM处理(AM20、AM40、AM60、AM80)整体提高了Al-P、Fe-P、A-P、Ca2-P、Ca8-P含量,降低了O-P、Ca10-P含量,整体而言,AM40处理均具有较大值。相关性分析结果进一步表明,可用磷组分(A-P、Ca2-P、Ca8-P、Fe-P、Al-P)与植物磷吸收量和表达基因(NtPT5)之间皆存在显著正相关关系,与难溶性磷(O-P、Ca10-P)组分呈显著负相关关系。综上,在盐渍土中施用AMF可有效改善辣椒幼苗的生理代谢,且AMF可以将不溶和难溶性磷(O-P、Ca2-P)活化为可用P(A-P、Ca2-P、Ca8-P)和缓速P (Fe-P、Al-P),从而促进辣椒对磷的吸收,以施用40 g/kg AMF菌剂效果最佳。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-02-22
基金项目:河南省高等教育教学改革研究与实践重大项目(编号:2019SJGLX631)。
作者简介:侯殿明(1963—),男,河南淅川人,硕士,副教授,主要从事植物保护、生态农业规划等研究。E-mail:1355159304@qq.com。
更新日期/Last Update: 2022-08-05