Skubatz Hanna, Kunkel Dennis D, Howald William N, Trenkle Robert, Mookherjee Braja
Department of Botany, University of Washington, Seattle, WA 98195, USA.
BEKESY Lab of Neurobiology, University of Hawaii at Manoa, Honolulu, Hawaii,96822.
New Phytol. 1996 Dec;134(4):631-640. doi: 10.1111/j.1469-8137.1996.tb04928.x.
This report combines chemical, electron microscopic and ecological studies on the volatiles liberated by the Sauromatum guttatum appendix on D-Day, the day of inflorescence-opening and heat-production. More than 100 compounds from at least nine different chemical classes (monoterpenes, sesquiterpenes, fatty acids, ketones, alcohols, aldehydes, indole, and phenolic and sulphur compounds) are liberated during the thermogenic activity. The volatiles were identified using gas chromatography-mass spectrometry. Electron microscopy provides additional evidence that the endoplasmic reticulum (ER) interacts with the plasma membrane, creating novel routes of excretion of the volatiles to the exterior of the cell. It seems that the fusion event creates channels from the interior to the exterior of the cell. Furthermore, a multitubular body, conceivably originating in the ER, seems to fuse with the plasma membrane and to appear only on D-day. This multitubular body is closely associated with lipid bodies during heat-production and might be involved in the oxidation of lipids to volatile products. The foul odour produced by the appendix attracts at least 30 species of insects.
本报告结合了对臭菘附属器在花序开放和产热之日（即D日）释放的挥发物进行的化学、电子显微镜和生态学研究。在产热活动期间会释放出至少来自九个不同化学类别的100多种化合物（单萜、倍半萜、脂肪酸、酮、醇、醛、吲哚以及酚类和硫化合物）。使用气相色谱 - 质谱联用仪对挥发物进行了鉴定。电子显微镜提供了额外的证据，表明内质网（ER）与质膜相互作用，形成了挥发物向细胞外部排泄的新途径。似乎这种融合事件形成了从细胞内部到外部的通道。此外，一个可能起源于内质网的多管体似乎与质膜融合，并且只在D日出现。这个多管体在产热过程中与脂质体紧密相关，可能参与脂质氧化为挥发性产物的过程。附属器产生的恶臭吸引了至少30种昆虫。
