نتایج جستجو برای: apocynaceae
تعداد نتایج: 1238 فیلتر نتایج به سال:
The Madagascar periwinkle (Catharanthusroseus in the family Apocynaceae) is an important medicinal plant and is the source of several widely marketed chemotherapeutic drugs. It is also commonly grown for its ornamental values and, due to ease of infection and distinctiveness of symptoms, is often used as the host for studies on phytoplasmas, an important group of uncultivated plant pathogens. T...
A new species of Matelea is described from Hispaniola, resulting from study of subtribe Gonolobinae (Apocynaceae: Asclepiadoideae) in the West Indies.
A systematic investigation was done on the Apocynaceae family that is found growing all around Kanyakumari District in Tamil Nadu, India. We gathered and identified a total of 17 species from 12 genera Apocynaceae. complete taxonomic account each has been given along with their current name, common brief description phenology. Based morphological floral characteristics, classification proposed.
Antibiotics play an important role in the disease management of aquaculture practices; however antibiotic resistance develops readily in pathogens following antibiotic treatment. Medicinal herbs play an alternative role to tackle this problem. In the present study, 15 selected plant species belonging to Lamiaceae and Apocynaceae were collected from different localities of Tirunelveli district o...
Stipules are leaf structures common in many groups of plants that can take a variety of forms. In Gentianales, interpetiolar stipules are considered a synapomorphy of Rubiaceae; however, some reports in the literature refer to their presence in other families. The goal of this study was to analyze the development of leaf primordia to investigate the possible presence of reduced or modified stip...
Alkaloid accumulation in plants is activated in response to stress, is limited in distribution and specific alkaloid repertoires are variable across taxa. Rauvolfioideae (Apocynaceae, Gentianales) represents a major center of structural expansion in the monoterpenoid indole alkaloids (MIAs) yielding thousands of unique molecules including highly valuable chemotherapeutics. The paucity of genome...
lesser periwinkle (vinca minor l.), a member of apocynaceae, is not only an ornamental plant with lilac-blue flowers, but also a medical plant producing an important alkaloid, vincamine, found in the leaves which shows a pronounced cerebrovasodilatory and neuroprotective activity. this plant is native to northern spain, western france, central and southern europe, and caucasus. it has been rece...
Functional constraints are often assumed to influence the performance of nucleotide characters in phylogenetic analysis: First and second codon positions and sites of structural importance are considered to show less homoplasy. We investigate the performance of rbcL characters with differential functional constraints in a cladistic analysis of the plant family Apocynaceae s.l. (Sennblad and Bre...
Phylogenetic relationships in the Gentianales with focus on Loganiaceae sensu lato are evaluated using parsimony analyses of nucleotide sequence data from the plastid genes rbcL and ndhF. Inter- and intrafamilial relationships in the Gentianales, which consist of the families Apocynaceae (including Asclepiadaceae), Gelsemiaceae, Gentianaceae, Loganiaceae, and Rubiaceae, are studied and receive ...
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