Trichome morphology of the tribe Pogostemoneae (Lamioideae; Lamiaceae)

سال انتشار: 1399
محل انتشار: بیست و یکمین کنگره ملی و نهمین کنگره بین المللی زیست شناسی ایران
کد COI اختصاصی: BIOCONF21_0903
زبان مقاله: انگلیسی
تعداد مشاهده: 119

نویسندگان

Department of Plant Science and Center of Excellence in Phylogeny of Living Organisms, School of Biology, College of Science, University of Tehran, Tehran, Iran

Yasaman Salmaki

Department of Plant Science and Center of Excellence in Phylogeny of Living Organisms, School of Biology, College of Science, University of Tehran, Tehran, Iran

چکیده

The Pogostemoneae taxa are characterized by having posterior lip often short, stamens often long exserted, filaments often bearded and nutlets often small. A comprehensive investigation of the trichome morphology of tribe Pogostemoneae was studied to determine the usefulness of these characteristics for systematic purposes. We have investigated the distribution and morphology of trichomes of stems, leaves, and calyces in ۱۰ taxa of ۹ genera of Pogostemoneae using light microscopy and Scanning Electron Microscopy. Two basic types of trichomes can be distinguished: non-glandular and glandular. The non-glandular trichomes can be subdivided into subtypes: simple (i.e. short, long, and extremely long trichomes) and branched. Capitate trichome (that subdivide to sessile, short-stalked, and stalked) and peltate constitute two subtypes of glandular trichomes. Simple short non-glandular and sessile glandular trichomes are the most common types of trichomes in the tribe. Leucosceptrum, Rostrinucula, and Comanthosphace are characterized by branched trichomes. Peltate trichomes were observed only in Pogostemon benghalensis among all the species that were studied. Our results showed that the presence or absence of trichomes and types of them are important morphological traits and can be considered as diagnostic properties in the Pogostemoneae tribe.

کلیدواژه ها

Classification, Pogostemoneae, Taxonomy, Trichome morphology

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.