Foliar Micromorphology of Subtribe Ischaemineae, Tribe Andropogoneae, Family Poaceae
نویسندگان
چکیده
منابع مشابه
Comparison of common cytotypesof Andropogon gerardii(Andropogoneae, Poaceae).
Many plant species contain populations with more than one polyploid cytotype, but little is known of the mechanisms maintaining several cytotypes in a population. Andropogon gerardii cytotypes were compared to evaluate different models of autopolyploid cytotype coexistence. The enneaploid (90 chromosome, 9x) cytotype was found to be larger and taller than the hexaploid (60 chromosome, 6x) cytot...
متن کاملMolecular evolution of FLORICAULA/LEAFY orthologs in the Andropogoneae (Poaceae).
Members of the grass family (Poaceae) exhibit a broad range of inflorescence structures and other morphologies, making the grasses an interesting model system for studying the evolution of development. Here we present an analysis of the molecular evolution of FLORICAULA/LEAFY-like genes, which are important developmental regulatory loci known to affect inflorescence development in a wide range ...
متن کاملThe foliar anatomy and micromorphology of Aloe ferox Mill. (Asphodelaceae).
BACKGROUND The genus Aloe has been the subject of several chemotaxonomic and phytochemical investigations. Aloe ferox is an important source of biologically active compounds like anthrones, chromones, pyrones, and flavonoids. It is a plant used extensively in traditional medicine. Despite the myriad of studies on the pharmacological profile of the plant, there still exists a dearth of scientifi...
متن کاملChromosome number in South American species of Bothriochloa (Poaceae: Andropogoneae) and evolutionary history of the genus.
Mitotic chromosome number of 14 taxa of Bothriochloa native to Argentina, Brazil and Uruguay were surveyed. Chromosome numbers of B. eurylemma, B. meridionalis and B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n ...
متن کاملNutlet micromorphology of the genus Marrubium L. and allies and its systematic implication (Lamiaceae: tribe Marrubieae)
Nutlets of 20 taxa of the tribe Marrubieae were examined by scanning electron microscopy (SEM) and detailed descriptions of nutlet micromorphological features for all examined taxa are provided. The nutlets exhibited variation in size, shape, color and surface sculpturing. The nutlets shape of most species studied is ovate, but rounded, broad ovate, elliptic, lanceolate, triangular and oblong c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Notulae Scientia Biologicae
سال: 2013
ISSN: 2067-3264,2067-3205
DOI: 10.15835/nsb539062