|本期目录/Table of Contents|

[1]喻彩丽,李亮,张贝,等.丛枝菌根真菌和解磷菌对青梅根系发育、磷吸收及土壤磷有效性的影响[J].江苏农业科学,2023,51(17):240-248.
 Yu Caili,et al.Effects of arbuscular mycorrhizal fungi and phosphate-solubilizing bacteria on root development,phosphorus uptake and soil phosphorus availability of Prunus mume[JY。]Yu Caili,et al(240)[J].Jiangsu Agricultural Sciences,2023,51(17):240-248.
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丛枝菌根真菌和解磷菌对青梅根系发育、磷吸收及土壤磷有效性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第17期
页码:
240-248
栏目:
资源与环境
出版日期:
2023-09-05

文章信息/Info

Title:
Effects of arbuscular mycorrhizal fungi and phosphate-solubilizing bacteria on root development,phosphorus uptake and soil phosphorus availability of Prunus mume[JY。]Yu Caili,et al(240)
作者:
喻彩丽1李亮1张贝1郑明治1秦鹏2李俊龙1
1.汕尾职业技术学院海洋学院,广东汕尾 516600; 2.塔里木大学信息工程学院,新疆阿拉尔 843300
Author(s):
Yu Cailiet al
关键词:
丛枝菌根真菌解磷细菌根系构型无机磷组分低分子量有机酸
Keywords:
-
分类号:
S662.406
DOI:
-
文献标志码:
A
摘要:
为探索丛枝菌根(AM)真菌与解磷细菌对果树根系发育、磷吸收及土壤解磷机制的影响,为果树高效复合型菌肥的研制提供理论依据,采用双因素设计,以大核青梅幼苗为试材,AM真菌选用明根孢囊霉(Rhizophagus clarus),解磷细菌选用巨大芽孢杆菌(Bacillus megatherium ZS-3),设置3个磷(P)水平:0(低,P0)、50(中,P1)、100 mg/kg(高,P2),4个施菌水平:接种丛枝菌根真菌(AM)、解磷细菌(PB)、结合接种(MX)和未接菌处理对照组(CK)。结果表明,无论P条件如何,微生物接种处理均增加了植物P浓度、P总吸收量及生物量,促进了根系体积、表面积及侧根发育,生物P贡献表现为P2<P0<P1,且P1处理下MX生物贡献率达55.75%。此外,微生物处理在一定程度上提高了土壤酶(CAT、INV、ACP、PHY)活性及Fe-P含量,降低了土壤分子量有机酸含量及无机磷难溶组分(O-P、CA10-P、Al-P)含量,且中低P处理下根际土壤磷的有效性显著提高。相关性分析结果表明,AM处理下,无机磷组分与土壤有效磷(AP)、土壤有机酸关系密切;而PB处理下,有机磷含量与AP含量、土壤代谢酶活性显著相关。综上,接种AM真菌、溶磷细菌均可促进宿主根系发育,提高土壤P有效性以改善植物P吸收,但二者解磷机制存在差异,AM真菌主要依赖有机酸活化难溶性无机磷组分从而提高根际磷有效性,解磷细菌则主要提高土壤酶活性以促进有机磷矿化,且中等P水平最利于发挥微生物的功能作用,即中等P土壤中双接种AM真菌和解磷细菌效果最佳。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2023-03-29
基金项目:国家自然科学基金地区基金(编号:42061046);广东省普通高校重点专项(编号:2021ZDZX4111)。
作者简介:喻彩丽(1989—),女,河南周口人,硕士,讲师,主要从事植物生态研究。E-mail:purejade@163.com。
更新日期/Last Update: 2023-09-05