The color and anatomical structure of the seed kernel are different. For to ripen, it is necessary go through certain processes, that is, takes time. It depends on many external internal factors. Morphological signs fruits seeds different in each species, but at same time, these relatively constant level genus, therefore, importance systematics increasing now. morpho-anatomical study angiosperm...

BACKGROUND AND AIMS Plasticity in structural and functional traits related to water balance may determine plant performance and survival in ecosystems characterized by water limitation or high levels of rainfall variability, particularly in perennial herbaceous species with long generation cycles. This paper addresses whether and the extent to which several such seasonal to long-term traits res...

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...

The root is an excellent model for studying developmental processes that underlie plant anatomy and architecture. Its modular structure, the lack of cell movement and relative accessibility to microscopic visualization facilitate research in a number of areas of plant biology. In this review, we describe several examples that demonstrate how cell type-specific developmental mechanisms determine...

1 Department of Natural Drugs, Faculty of Pharmacy and 4 Department of Veterinary Ecology and Environmental Protection, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Palackeho 1-3, CZ-612 42 Brno, Czech Republic, 2 Department of Plant Biology and 5 Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedel...

Achyranthes aspera L. (Amaranthaceae) has long been used in different systems of medicine in the treatment of cancer, leprosy, asthma, fistula, piles, arthritis, wound, insect and snake bite, dandruff, hepatitis, renal disorders, dermatological disorders, gynecological disorders, gonorrhea, malaria, fever, cough, diabetes, pyorrhea, dysentery, opthalmia, rabies, hysteria, toothache etc. The pla...

In continuation of our search for biologically active molecules from terrestrial sources, we have investigated the creeping perennial herb Phyla nodiyora (Linn) Greene (Verbenaceae) ("Lippia nodiyora (Linn.) Mich), which grows widely in India. The leaves of P. nodiyora were collected from Bhadrachalam forest in October 1998. The plant was identi"ed by Prof. M. Prabhakar, Plant Anatomy and Taxon...

The Plant Ontology Consortium (POC) (www.plantontology.org) is a collaborative effort among several plant databases and experts in plant systematics, botany and genomics. A primary goal of the POC is to develop simple yet robust and extensible controlled vocabularies that accurately reflect the biology of plant structures and developmental stages. These provide a network of vocabularies linked ...

In phylogenetic trees the addition and removal of taxa has large effects on tree topology, hence measures of branch support and tree stability should account for taxonomic composition. Currently no comprehensive system of composition-dependent parameters exists in any cladistic or phenetic strategy. We introduce several values and indices based on a modification of the original jackknife resamp...