江西农业学报2026，Vol.38Issue(2)：17-24,8.DOI:10.19386/j.cnki.jxnyxb.2026.02.003
洛阳烟区不同烤烟品种腺毛形态及分泌物特性比较分析
Comparison Analysis of Glandular Trichomes Morphology and Secretion Characteristics among Different Flue-cured Tobacco Varieties in Luoyang Tobacco-planting Area
摘要
Abstract
Using cultivars(lines)including Heluo 1,LY100,Yunongxiang 201,Zhongyan 100(ZY100),K326,and Yunyan 87(YY87)as materials,a comparative analysis was conducted on the morphological structure of trichomes,leaf surface chemical components,and the expression levels of genes related to trichome development and metabolism in a typical ecological region of Luoyang.The results showed that the leaf surface trichomes of all cultivars comprised three types:long glandular trichomes,short glandular trichomes and protective trichomes,but their proportions varied.Except for ZY100,long glandular trichomes were predominant in the other cultivars.Trichome density differed significantly among cultivars and changed during leaf development.K326 exhibited the highest trichome density,followed by Yunongxiang 201,while ZY100 had the lowest.The trichome secretions primarily consisted of cembratrien-diols(CBT-diols),sucrose esters and hydrocarbons,with CBT-diols being the major component,accounting for 73.49%to 84.54%of the total.The content of sucrose esters was relatively low,accounting for only 4.34%to 7.74%.The total secretions content was the highest in K326,followed by Yunongxiang 201,while ZY100 was the lowest.The expression levels of trichome development-related genes NtMIXTA,NtWo and NtHD9 were the highest in Yunongxiang 201,whereas NtCycB2 was highly expressed in ZY100.Key genes involved in secretions synthesis,NtCBT,NtCY-P71D16 and NtASAT1,showed high expression in Yunongxiang 201 and low expression in ZY100.关键词
洛阳烟区/烤烟品种/腺毛密度/叶面化学成分/基因表达Key words
Luoyang tobacco-planting area/Flue-cured tobacco variety/Glandular trichomes density/Leaf surface chemical component/Gene expression分类
农业科技引用本文复制引用
钱孟英,李丽华,宋正熊,曹依鸣,闫筱筱,王惠,崔红,武东玲..洛阳烟区不同烤烟品种腺毛形态及分泌物特性比较分析[J].江西农业学报,2026,38(2):17-24,8.基金项目
河南省烟草公司洛阳市公司科技项目"洛阳特色品种腺毛密度定向改良和新品系选育"(2024410300270127). （2024410300270127）
