作者：蒋小欢, 梁琴, 唐伟杰, 杨娜, 王微
单位：1 贵州中医药大学 药学院/中药民族药生态种植技术研究中心，贵州 贵阳 550025,2 重庆文理学院 智慧农业学院/特色植物研究院，重庆 402160
关键词：AM真菌,中草药,药用植物,生物量分配,干旱
基金：贵州中医药大学博士启动资助项目(贵中医博士启动[2020]15号),贵州省科技计划项目(黔科合基础-ZK[2022]一般488),重庆市自然科学基金(cstc2021jcyj-msxmX1019),贵州中医药大学新苗项目(贵科合学术新苗[2023]-16号)
干旱胁迫下，植物的生长会受到不同程度的影响。丛枝菌根(arbuscular mycorrhiza fungi，AM)真菌与植物共生后能扩大根系对水分和养分的吸收面积，改善多种植物的抗逆性。而AM真菌能否与植物共生及共生效应程度因植物及AM真菌的种类不同而有差异。薏米Coix lacryma-jobi var. mayuen性喜湿润，干旱胁迫严重影响其生长及产量。为研究薏米能否与AM真菌共生及其共生后的生长与生物量分配策略变化，本研究采用盆栽控水实验模拟干旱胁迫，探讨不同水分条件下(正常供水、中度干旱和重度干旱)接种不同AM真菌(摩西斗管囊霉、幼套近明球囊霉和层状近明球囊霉)对薏米生长及生物量分配格局的影响。结果表明：3种AM真菌均能成功侵染薏米根系，但菌根侵染率随干旱胁迫加剧而降低；干旱胁迫显著抑制了薏米的生长及生物量积累，提升了叶片枯萎率及根冠比；而接种AM真菌能促进薏米生长及生物量积累，降低叶片枯萎率，缓解干旱胁迫对薏米生长的抑制作用。不同种类AM真菌对薏米的影响程度不同。研究表明在干旱胁迫下接种AM真菌，可促进薏米生长，影响薏米茎、叶、根等地上地下生物量的分配，增强对主要吸水器官根的资源投入，从而提升薏米的耐旱性。"/>template{display:none;}.mag-rich-xref-fn { cursor: pointer;}//长视频$(document).ready(function(){if($("#showLongArticleVideo") && $("#showLongArticleVideo").length && $("#showLongArticleVideo").length>0){mag_ajax_update({ele_id:'showLongArticleVideo',url:mag_currentQikanUrl() + "/CN/article/showLongArticleVideo.do?id="+$("#articleId").val()});}});//可视化图谱$(document).ready(function(){if($("#showArticle_knowledgeMap") && $("#showArticle_knowledgeMap").length && $("#showArticle_knowledgeMap").length>0){jQuery.getJSON("/Jwxb/CN/lexeme/existsCnctstInArticle.do?articleID="+$("#articleId").val(), null, function(json){if(json.result){$("#showArticle_knowledgeMap").show();}});}});$(document).ready(function(){var metaDataStr = $.trim($("#article_metaJson").val());if(metaDataStr!=''){eval("window.metaData="+metaDataStr);}if(window.metaData && (!window.metaData.authorNotesCommon_cn && !window.metaData.authorNotesCorresp_cn && window.metaData.authorNotes_cn)){window.metaData.authorNotesCommon_cn = window.metaData.authorNotes_cn;}if(window.metaData && (!window.metaData.authorNotesCommon_en && !window.metaData.authorNotesCorresp_en && window.metaData.authorNotes_en)){window.metaData.authorNotesCommon_en = window.metaData.authorNotes_en;}var _nlmdtdXml = $("#article_nlmdtdXml").val();var magDir = _nlmdtdXml.replace(/\/[^\/]+$/,'');window.metaData.magDir = magDir;new mag_vue({ el: '#metaVue', //dataUrl: mag_currentQikanUrl() + '/EN/article/getRichHtmlJson.do?articleId='+$("#articleId").val(), data:window.metaData, loading:true, doTextFun:function(text){ return doDataJsonText(text); 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来源：2025年第8期
《菌物学报》期刊编辑部
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