Structure and chemical content of the trichomes in two Doronicum species (Asteraceae)

Modern Phytomorphology. 2014;5:167-171

 

Journal Homepage

Journal Title: Modern Phytomorphology

ISSN: 2226-3063 (Print); 2227-9555 (Online)

Publisher: Novikoff A.V., State Natural History Museum NAS of Ukraine

LCC Subject Category: Science: Botany

Country of publisher: Ukraine

Language of fulltext: Ukrainian, English, Russian

Full-text formats available: PDF

 

AUTHORS


Olga V. Kostina (Laboratory of Plant Anatomy and Morphology, Komarov Botanical Institute of Russian Academy of Sciences, Prof. Popov str. 2, 197376 St. Petersburg, Russia; [email protected])

Lyudmila E. Muravnik (Laboratory of Plant Anatomy and Morphology, Komarov Botanical Institute of Russian Academy of Sciences, Prof. Popov str. 2, 197376 St. Petersburg, Russia)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 10 weeks

 

Abstract | Full Text

Non-glandular and three types of glandular trichomes localized on a peduncle and the phyllaries of two species (Doronicum orientale and D. macrophyllum) belonging to Senecioneae tribe of Asteraceae were studied by light and electron microscopy, as well as on histochemistry. The plant species differ on the trichome morphology, anatomy and arrangement. Three types of the glandular trichomes are formed on the vegetative and reproductive organs in D. orientale, whereas only one type exists in D. macrophyllum. It was shown by fluorescent microscopy and histochemistry that the phenolic substances, terpenoids and sesquiterpene lactones present in the glandular trichomes. The received results allow assuming that secretion of the trichomes is a chemical barrier to insects and fungi.