摘要
花朵挥发物是传粉昆虫和食花害虫定位花朵的嗅觉线索,不同品种间花朵挥发物含量组分的差异影响昆虫的选择行为多有报道。芒果依赖昆虫传粉,且易受食花害虫为害。而不同品种芒果花的挥发性化合物尚无报道,不利于引诱剂/趋避剂的开发。因此,本研究利用动态顶空吸附法收集四季蜜芒、台农1号、桂热82号、凯特芒、红芒6号、红象牙、金煌芒的花朵挥发物,运用气相色谱-质谱联用法(GC-MS)鉴定分析其挥发性成分的组成差异和相似度。结果表明:7个品种芒果花挥发物共鉴定出挥发性成分115种,其中萜烯类44种、烷烃类30种、酯类16种、醇类16种、酮类5种、醛类3种、酚类1种。四季蜜芒、台农1号、桂热82号、凯特芒、红芒6号、红象牙和金煌芒的挥发性成分分别为82、49、46、49、60、49和59种。7个品种芒果花挥发物的共有成分有14种,分别为α-蒎烯、莰烯、β-蒎烯、β-月桂烯、3-蒈烯、α-萜品烯、D-柠檬烯、β-罗勒烯、萜品油烯、1-石竹烯、大牛儿烯D、邻-异丙基苯、苯甲酸乙酯和2-丙基-1-戊醇;特异性成分有33种,其中四季蜜芒有24种,台农1号有4种,金煌芒有2种,桂热82号、红芒6号和凯特芒各有1种。7个品种芒果花的挥发物中以萜烯类(46.15%~89.41%)、醇类(2.01%~23.58%)、酯类(3.34%~14.67%)、烷烃类(2.27%~13.75%)的相对含量较多。其中萜烯类含量较高的有α-蒎烯、3-蒈烯和萜品油烯,醇类含量最高的是芳香醇,酯类中含量最高的是苯甲酸乙酯,烷烃类中含量最高的是环己硅氧烷。7个品种芒果花挥发物间的关系最近的是四季蜜芒和金煌芒,相似度达0.862,最远的是四季蜜芒与红象牙,相似度为0.255。本研究结果为后续花朵挥发性气味介导的传粉昆虫和食花害虫对芒果不同品种的选择偏好性研究提供参考依据。
Insects use floral volatiles as the olfactory cues to locate flowers.Numerous studies have shown that the selection behavior of insects can be impacted by variations in the volatile component concentration of floral varieties.The flower of mango(Mangifera indica L.)rely on insect pollination and susceptible to florivorous pests.However,volatiles in different varieties of mango flowers are relatively insufficient,which is unfavourable to the development of attractants and repellents.Therefore,the volatile floral chemical components in seven mango varieties(M.indica var.Sijimi,M.indica var.Tainong 1,M.indica var.Guire 82,M.indica var.Kaite,M.indica var.Hongmang 6,M.indica var.Hongxiangya,and M.indica var.Jinhuang)were collected using the dynamic headspace adsorption technique.The volatile components were identified and analyzed using gas chromatography-mass spectrometry-mass spectrometry(GC-MS)to compare the composition differences and similarities of the components.The findings indicated that a total of 115 volatile components,comprising 44 terpenes,30 alkanes,16 esters,16 alcohols,five ketones,three aldehydes,and one phenol,were found in the volatiles of the seven species of mango flowers.82 distinct types of volatile substances were discovered in M.indica var.Sijimi,49 distinct types of M.indica var.Tainong 1,46 distinct types of M.indica var.Guire 82,49 distinct types of M.indica var.Kaite,60 distinct types of M.indica var.Hongmang 6,49 distinctive types of M.indica var.Hongxiangya,and 59 distinct types of M.indica var.Jinhuang.Seven species of mango blossoms contained 14 common volatile components:α-pinene,camphene,β-pinene,β-myrcene,3-carene,α-terpinene,D-limonene,β-ocimene,terpinolene,1-caryophyllene,germacrene D,o-cymene,benzoic acid,ethyl ester and 2-propyl-1-pentanol;33 different types of specific components existed,including 24 different types of M.indica var.Sijimi,four different types of M.indica var.Tainong 1,two different types of M.indica var.Jinhuang,one type of M.indica var.Guire 82,M.indica
作者
王帅
郑霞林
罗聪
何新华
王小云
WANG Shuai;ZHENG Xialin;LUO Cong;HE Xinhua;WANG Xiaoyun(College of Agriculture,Guangxi University/State Key Laboratory of Protection and Utilization of Subtropical Agricultural Biologi�cal Resources,Nanning,Guangxi 530004,China)
出处
《热带作物学报》
CSCD
北大核心
2024年第3期551-563,共13页
Chinese Journal of Tropical Crops
基金
国家现代农业产业技术体系广西芒果创新团队栽培与病虫害防治岗位项目(No.nycytxgxcxtd-2021-06-2)
国家自然科学基金项目(No.32201270)。
