CAJ | 학술논문

冷蒿(Artemisia frigida)挥发性有机化合物(volatile organic compounds,VOCs)具有特殊气味,在植物受损伤时,此气味会更加浓烈.该文通过对未损伤与损伤冷蒿VOCs成分分析、地上部分结构观察,初步揭示了冷蒿VOCs释放与结构之间的关系.结果表明,未损伤冷蒿VOCs主要含有22种化合物,其主要成分是莰烯(14.27%)、(E)-乙酸-3-己烯酯(10.85%)、对-伞花烃(9.05%)、桉树脑(39.80%)、α-萜品醇(10.04%)、β-萜品醇(2.48%)、樟脑(5.66%)和(R)-(-)-对薄荷-1-烯-4-醇(3.84%).损伤较未损伤冷蒿VOCs增加了12种物质,其中相对含量大于1%的化合物分别为顺-3-己烯醛(1.15%)、2-己烯醛(1.34%)、顺-犄牛儿醇(2.66%)、冰片(4.47%)、(1R,4R)(+)-对-薄荷-2,8-二烯(9.15%)、乙酸冰片酯(1.37%)和4(14),11-桉叶双烯(1.30%).冷蒿叶片中栅栏组织发达,叶柄内具有2-3处栅栏组织,并且栅栏组织中都具有发达的气室,同时气室与气孔相连.因此.损伤较未损伤冷蒿VOCs种类和浓度增多的原因可能为:冷蒿VOCs合成后大量储存于气室中,当叶片损伤时,VOCs大量释放出来,同时合成释放一些新的VOCs,致使损伤冷蒿VOCs种类和浓度增加.
랭호(Artemisia frigida)휘발성유궤화합물(volatile organic compounds,VOCs)구유특수기미,재식물수손상시,차기미회경가농렬.해문통과대미손상여손상랭호VOCs성분분석、지상부분결구관찰,초보게시료랭호VOCs석방여결구지간적관계.결과표명,미손상랭호VOCs주요함유22충화합물,기주요성분시감희(14.27%)、(E)-을산-3-기희지(10.85%)、대-산화경(9.05%)、안수뇌(39.80%)、α-첩품순(10.04%)、β-첩품순(2.48%)、장뇌(5.66%)화(R)-(-)-대박하-1-희-4-순(3.84%).손상교미손상랭호VOCs증가료12충물질,기중상대함량대우1%적화합물분별위순-3-기희철(1.15%)、2-기희철(1.34%)、순-의우인순(2.66%)、빙편(4.47%)、(1R,4R)(+)-대-박하-2,8-이희(9.15%)、을산빙편지(1.37%)화4(14),11-안협쌍희(1.30%).랭호협편중책란조직발체,협병내구유2-3처책란조직,병차책란조직중도구유발체적기실,동시기실여기공상련.인차.손상교미손상랭호VOCs충류화농도증다적원인가능위:랭호VOCs합성후대량저존우기실중,당협편손상시,VOCs대량석방출래,동시합성석방일사신적VOCs,치사손상랭호VOCs충류화농도증가.
Aims Special volatile organic compounds (VOCs) are released from Artemisia frigida in its growth, and the smell of VOCs is stronger when it is damaged. Our objective was to determine the VOCs from A. frigida and the relationship between the VOCs release and organization structure of A. frigida.Methods VOCs were collected using the dynamic headspace air-circulation method and analyzed with the ther-mal-desorption cold trap/gas chromatography/mass spectrum (TCT/GC/MS). The coat hairs of A. frigida were observed with scanning electron microscope, and the paraffin section of aboveground structures was observed with microscope.Important findings Twenty-two main compounds were identified in undamaged A. frigida: camphene (14.27%), (E)-3-hexen-l-ol,acetate (10.85%), p-cymene (9.05%), eucalyptol (39.80%), a-terpineol (10.04%), β-terpineol (2.48%), camphor (5.66%) and (R)-(-)-p-menth-l-en-4-ol (3.84%). Twelve kinds of VOCs increased with damage; those with a relative content > 1% were cis-3-Hexenal (1.15%), 2-Pentenal (1.34%), cis-Geraniol (2.66%), Borneol (4.47%), (1R,4R)-(+)-p-Mentha-2,8-diene (9.15%), Bornyl acetate (1.37%) and Eudesma-4(14),11-diene (1.30%). There were many palisade tissues in A. frigida blades, 2-3 palisade tissues in petioles, and many air chambers in palisade tissue connected with stoma. The kinds and relative content of damaged A. frigida VOCs were more than the undamaged, possibly because A. frigida VOCs were stored in air chambers, which were released when A. frigida was damaged, and some new VOCs were composed and released. Therefore, the kinds and content of VOCs were increased in damaged A. frigida.