Development and essential oil content of secretory glands of sage (Salvia officinalis)
Scanning electron microscopy of sage (Salvia officinalis L.) leave confirmed the presence of two basic types of glandular trichomes consisting of a capitate stalked form containing a multicellular stalk and surmounted by a unicellular secretory head, and a capitate sessile form containing a unicellular stalk and unicellular, or multicellular, secretory head. In the latter type, secretory activity and filling of the subcuticular cavity may begin at virtually any stage of the division cycle affording fully developed glands containing from one to twelve cells in the secretory head. Gas liquid chromatographic analysis of the oil content of the most numerous gland species (capitate stalked, capitate sessile with one and with eight secretory cells) indicated only minor quantitative differences in essential oil composition. Thus, each gland type is capable of producing the four major monoterpene families (p-menthanes, pinanes, bornanes and thujanes) characteristic of sage. 21 references, 2 figures.
- Research Organization:
- Washington State Univ., Pullman
- DOE Contract Number:
- AM06-76RL02221; AT06-82ER12027
- OSTI ID:
- 5974692
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 76:1; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
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