Title: Cuticle Development on Glandular Trichomes of Cannabis sativa (Cannabaceae)
Abstract: American Journal of BotanyVolume 78, Issue 8 p. 1113-1122 Article CUTICLE DEVELOPMENT ON GLANDULAR TRICHOMES OF CANNABIS SATIVA (CANNABACEAE) Paul G. Mahlberg, Paul G. Mahlberg Department of Biology, Indiana University, Bloomington, Indiana, 47405 Department of Biology, Soonchunhyang University, Choongnam, KoreaSearch for more papers by this authorEun-Soo Kim, Eun-Soo Kim Department of Biology, Indiana University, Bloomington, Indiana, 47405 Department of Biology, Soonchunhyang University, Choongnam, KoreaSearch for more papers by this author Paul G. Mahlberg, Paul G. Mahlberg Department of Biology, Indiana University, Bloomington, Indiana, 47405 Department of Biology, Soonchunhyang University, Choongnam, KoreaSearch for more papers by this authorEun-Soo Kim, Eun-Soo Kim Department of Biology, Indiana University, Bloomington, Indiana, 47405 Department of Biology, Soonchunhyang University, Choongnam, KoreaSearch for more papers by this author First published: 01 August 1991 https://doi.org/10.1002/j.1537-2197.1991.tb14518.xCitations: 14 Author for correspondence. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract The dermal sheath of glandular trichomes of Cannabis sativa L., consisting of cuticle and a subcuticular wall, was examined by transmission electron microscopy. Cuticle thickened selectively on the outer wall of disc cells of each trichome prior to formation of the secretory cavity, whereas thickening was less evident on the dermal cells of the bract. Membraned secretory vesicles that differ in size and appearance in the secretory cavity were the source of precursors for synthesis of cuticle. Vesicle contents, released following the degradation of the vesicle membrane upon contact with the subcuticular wall, contributed to both structured and amorphous phases of cuticle development. The structured phase was represented by deposition and thickening of cuticle at the subcuticular wall-cuticle interface to form a thickened cuticle. In the amorphous phase precursors permeated the cuticle in a liquid state, as shown by fusion of cuticles and wax layers between contiguous glands, and may have contributed to growth in surface area of the expanding sheath. Disc cells are interpreted to control growth of secretory cavity by secretion of membraned vesicles into the cavity. The thickened cuticle, which increased eightfold in thickness during enlargement of the gland, provided structural strength for the extensive surface area of the dermal sheath. The gland of Cannabis in which vesicle contents contribute to the growth in thickness and surface area of the cuticle of the sheath is interpreted to represent a phylogenetically derived state as contrasted to secretory glands possessing only cuticle and lacking a complement of secretory vesicles. Citing Literature Volume78, Issue8August 1991Pages 1113-1122 RelatedInformation
Publication Year: 1991
Publication Date: 1991-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 11
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