Melastomataceae
Apomixis
Chamaecrista
Rubiaceae
Aluminium accumulation in leaves of 127 species in Melastomataceae, with comments on the order Myrtales. (1/47)
The distribution and systematic significance of aluminium accumulation is surveyed based on semi-quantitative tests of 166 species, representing all tribes and subfamilies of the Melastomataceae as well as a few members of related families within the Myrtales. The character is strongly present in nearly all members of the Memecylaceae and in most primitive taxa of the Melastomataceae, while non-accumulating taxa are widespread in the more derived tribes of the Melastomataceae. The variable distribution of Al accumulation in advanced clades of the latter family is probably associated with the tendency to herbaceousness, although it is unclear whether the more herbaceous representatives have developed more specialized Al-response mechanisms that may exclude high Al levels from the shoot. It is hypothesized that Al accumulation is symplesiomorphic for Melastomataceae and Memecylaceae, and that the feature characterizes the most primitive families in the Myrtales. Indeed, Al accumulation is also characteristic of Crypteroniaceae, Rhynchocalycaceae and Vochysiaceae. Crypteroniaceae and Rhynchocalycaceae probably take a basal position in a sister clade of the Memecylaceae and Melastomataceae, while Al accumulation suggests a basal position for Vochysiaceae in the Myrtaceae clade. (+info)Dispersal, environment, and floristic variation of western Amazonian forests. (2/47)
The distribution of plant species, the species compositions of different sites, and the factors that affect them in tropical rain forests are not well understood. The main hypotheses are that species composition is either (i) uniform over large areas, (ii) random but spatially autocorrelated because of dispersal limitation, or (iii) patchy and environmentally determined. Here we test these hypotheses, using a large data set from western Amazonia. The uniformity hypothesis gains no support, but the other hypotheses do. Environmental determinism explains a larger proportion of the variation in floristic differences between sites than does dispersal limitation; together, these processes explain 70 to 75% of the variation. Consequently, it is important that management planning for conservation and resource use take into account both habitat heterogeneity and biogeographic differences. (+info)A comparative study of metal levels in leaves of some Al-accumulating Rubiaceae. (3/47)
Concentrations of Al, Si, Fe, Mn, Cu and Ca were analysed in leaves of ten Rubiaceae species, most of which are Al accumulators, and these were compared with concentrations in one species of Melastomataceae. Quantitative data confirmed the distribution of Al accumulation as previously determined by semi-quantitative tests, and suggest that there is an apparent congruency between the shoot Al concentration and the number of accumulators within a certain genus or tribe. Al accumulators within the Rubiaceae are most characteristic of the Rubioideae subfamily, although a second origin is likely in at least a few members of the tribes Vanguerieae and Alberteae. While the leaf Si concentration in Melastomata malabathricum L. (Melastomataceae) was negligible, all Rubiaceae studied showed relatively high Si levels (mostly >3000 mg kg(-1)). It is hypothesized that an Al-Si complex is formed in the shoot tissues of Al-accumulating Rubiaceae and that this may contribute to Al detoxification. However, the Si : Al mole ratio tended to differ widely among species. There was no significant correlation between Al and the other metals analysed. A remarkably high Mn concentration was found in Coptosapelta olaciformis Elm. (+info)Multiple Miocene Melastomataceae dispersal between Madagascar, Africa and India. (4/47)
Melastomataceae sensu stricto (excluding Memecylaceae) comprise some 3000 species in the neotropics, 1000 in Asia, 240 in Africa, and 230 in Madagascar. Previous family-wide morphological and DNA analyses have shown that the Madagascan species belong to at least three unrelated lineages, which were hypothesized to have arrived by trans-oceanic dispersal. An alternative hypothesis posits that the ancestors of Madagascan, as well as Indian, Melastomataceae arrived from Africa in the Late Cretaceous. This study tests these hypotheses in a Bayesian framework, using three combined sequence datasets analysed under a relaxed clock and simultaneously calibrated with fossils, some not previously used. The new fossil calibration comes from a re-dated possibly Middle or Upper Eocene Brazilian fossil of Melastomeae. Tectonic events were also tentatively used as constraints because of concerns that some of the family's fossils are difficult to assign to nodes in the phylogeny. Regardless of how the data were calibrated, the estimated divergence times of Madagascan and Indian lineages were too young for Cretaceous explanations to hold. This was true even of the oldest ages within the 95% credibility interval around each estimate. Madagascar's Melastomeae appear to have arrived from Africa during the Miocene. Medinilla, with some 70 species in Madagascar and two in Africa, too, arrived during the Miocene, but from Asia. Gravesia, with 100 species in Madagascar and four in east and west Africa, also appears to date to the Miocene, but its monophyly has not been tested. The study afforded an opportunity to compare divergence time estimates obtained earlier with strict clocks and single calibrations, with estimates based on relaxed clocks and different multiple calibrations and taxon sampling. (+info)Candida leandrae sp. nov., an asexual ascomycetous yeast species isolated from tropical plants. (5/47)
The novel yeast species Candida leandrae is described based on eight isolates from decaying fruits of Leandra reversa Cogn. (Melastomataceae) in an Atlantic rainforest site in Brazil, one from a Convolvulaceae flower in Costa Rica and one from a drosophilid in Hawai'i. The strains differed in their colony morphology, one being butyrous and smooth and the other being filamentous and rugose. Sequences of the D1/D2 domains of the large-subunit rRNA gene from both morphotypes were identical. C. leandrae belongs to the Kodamaea clade and is closely related to Candida restingae. The two species can be separated on the basis of growth at 37 degrees C and the assimilation of melezitose, negative in the novel species. The type culture of C. leandrae is strain UNESP 00-64R(T) (=CBS 9735(T)=NRRL Y-27757(T)). (+info)Bud composition, branching patterns and leaf phenology in cerrado woody species. (6/47)
BACKGROUND AND AIMS: Plants have complex mechanisms of aerial biomass exposition, which depend on bud composition, the period of the year in which shoot extension occurs, branching pattern, foliage persistence, herbivory and environmental conditions. METHODS: The influence of water availability and temperature on shoot growth, the bud composition, the leaf phenology, and the relationship between partial leaf fall and branching were evaluated over 3 years in Cerrado woody species Bauhinia rufa (BR), Leandra lacunosa (LL) and Miconia albicans (MA). KEY RESULTS: Deciduous BR preformed organs in buds and leaves flush synchronously at the transition from the dry to the wet season. The expansion time of leaves is <1 month. Main shoots (first-order axis, A1 shoots) extended over 30 d and they did not branch. BR budding and foliage unfolds were brought about independently of inter-annual rainfall variations. By contrast, in LL and MA evergreen species, the shoot extension rate and the neoformation of aerial organs depended on rainfall. Leaf emergence was continuous for 2-6 months and lamina expansion took place over 1-4 months. The leaf life span was 5-20 months and the main A1 shoot extension happened over 122-177 d. Both evergreen species allocated biomass to shoots, leaves or flowers continuously during the year, branching in the middle of the wet season to form second-order (A2 shoots) and third-order (A3 shoots) axis in LL and A2 shoots in MA. Partial shed of A1 shoot leaves would facilitate a higher branching intensity A2 shoot production in LL than in MA. MA presented a longer leaf life span, produced a lower percentage of A2 shoots but had a higher meristem persistence on A1 and A2 shoots than LL. CONCLUSIONS: It was possible to identify different patterns of aerial growth in Cerrado woody species defined by shoot-linked traits such as branching pattern, bud composition, meristem persistence and leaf phenology. These related traits must be considered over and above leaf deciduousness for searching functional guilds in a Cerrado woody community. For the first time a relationship between bud composition, shoot growth and leaf production pattern is found in savanna woody plants. (+info)Aurapex penicillata gen. sp. nov. from native Miconia theaezans and Tibouchina spp. in Colombia. (7/47)
Conidiomata of a fungus resembling Chrysoporthe cubensis, a serious canker pathogen of Eucalyptus spp. (Myrtaceae, Myrtales) in tropical and subtropical parts of the world, was found on Eucalyptus grandis in Colombia. Fruiting structures of the fungus could be distinguished from those of C. cubensis by their distinctly orange conidiomatal necks. This fungus also was found on several plant species native to Colombia including Tibouchina urvilleana, T. lepidota and Miconia theaezans (Melastomataceae, Myrtales). Morphological comparisons, as well as those based on sequences of the ITS1/ITS2 region of the ribosomal DNA repeat and the beta-tubulin gene, were used to characterize this fungus. Its pathogenicity was assessed on various plants from which it has been collected, either in field or greenhouse trials. Phylogenetic analyses showed that isolates reside in a clade distinct from the four clades accommodating Chrysoporthe, Cryphonectria, Endothia and Rostraureum. Members of this clade are distinguished by the presence of orange conidiomatal necks with black bases and a unique internal stromatal structure. No teleomorph has been found for this fungus, for which we have provided the name Aurapex penicillata gen. sp. nov. A. penicillata produced only small lesions after inoculation on young T. urvilleana, M. theaezans and E. grandis trees and appears not to be a serious pathogen. (+info)In vitro inhibition of acetylcholinesterase by crude plant extracts from Colombian flora. (8/47)
The methanol extracts from five different plant families (Asteraceae, Euphorbiaceae, Melastomataceae, Rubiaceae, and Solanaceae) collected at Regional Natural Park Ucumari (Colombia), were screened for their acetylcholinesterase inhibitory activity through the modified Ellman's spectrophotometric method. The best inhibitory activities on this study were shown by the extracts of Solanum leucocarpum Dunal (IC50 = 204.59 mg/l) and Witheringia coccoloboides (Damm) (IC50 = 220.68 mg/l), both plants belonging to the Solanaceae family. (+info)I apologize for any confusion, but "Melastomataceae" is not a medical term. It is a taxonomic category in botany, referring to the Melastomataceae family of plants, also known as the melastome or blueberry family. This family includes around 400 genera and 5,000 species of flowering plants, many of which are found in tropical regions around the world.
If you have any questions related to medical terminology or concepts, I would be happy to help. Please provide me with more information so that I can better assist you.
Apomixis is a form of asexual reproduction in plants that involves the development of a seed without fertilization. It occurs through various mechanisms, such as agamospermy or parthenogenesis, where the embryo develops from an unfertilized egg cell or other cells within the ovule. This process bypasses the formation of gametes and meiosis, resulting in offspring that are genetically identical to the parent plant.
In agamospermy, the embryo sac develops without fertilization, and the chromosome number is maintained through mitotic divisions. In parthenogenesis, the egg cell develops into an embryo without being fertilized by a sperm cell. Apomixis can be advantageous for plant breeding as it allows for the rapid propagation of desirable traits and hybrids without the need for time-consuming and expensive traditional breeding methods. However, apomictic plants may also exhibit reduced genetic diversity, which can make them more susceptible to diseases and pests.
Chamaecrista is a genus of flowering plants in the pea family (Fabaceae). It includes several species commonly known as "sensitive plants" because their leaves react to touch by folding in on themselves. These plants are native to warm temperate and tropical regions around the world, including North and South America, Africa, and Asia. Some Chamaecrista species have been used in traditional medicine to treat various ailments, such as skin conditions, inflammation, and fever. However, it is important to note that the medical uses of these plants are not well-studied, and they should not be used as a substitute for professional medical advice or treatment.
Rubiaceae is not a medical term, but a taxonomic category in botany. It refers to the family of flowering plants that includes more than 13,500 species, distributed across approximately 600 genera. Some well-known members of this family include coffee (Coffea arabica), gardenias (Gardenia jasminoides), and madder (Rubia tinctorum).
In a medical context, certain plants from the Rubiaceae family have been used in traditional medicine for various purposes. For example:
* Coffee (Coffea arabica) beans are used to prepare caffeinated beverages that can help with alertness and concentration.
* Gardenia fruits and flowers have been used in traditional Chinese medicine to treat anxiety, insomnia, and inflammation.
* Madder root (Rubia tinctorum) has been used as a dye and in traditional medicine to treat skin conditions and digestive disorders.
However, it's important to note that the medicinal use of plants from this family should be based on scientific evidence and under the guidance of healthcare professionals, as some of these plants can have side effects or interact with medications.
I'm sorry for any confusion, but "pollination" is not a term typically used in medical definitions. Pollination is a process in biology, specifically in botany, that refers to the transfer of pollen from the male reproductive organ (anther) of a flower to the female reproductive organ (stigma) of the same or another flower, leading to fertilization and the production of fruits and seeds.
If you have any medical terms or concepts in mind, please provide them so I can offer an accurate definition or explanation.
Melastomataceae
Bredia
Medinilla theresae
Tashiroea
Melastoma malabituin
Monochaetum
Yellow-legged thrush
List of malvid families
APG IV system
Appendicularia (plant)
Huberia (plant)
APG III system
White-fronted capuchin
João Geraldo Kuhlmann
Memecylon angustifolium
Reveal system
Antiblemma leucocyma
Memecylon capitellatum
Hoary puffleg
Koatse
Rhexia mariana
Pachycentria glauca
List of food origins
Stylogyne
Aciotis
Creochiton
Stilbella
Aciotis oliveriana
Amphiblemma
Miconia revolutifolia
Melastomataceae - Wikipedia
Melastomataceae</em>...
Melastomataceae - Ecuagenera
Search results for: Jos\u00E9 R. Pirani, Melastomataceae, page 1 | Collections Search Center, Smithsonian Institution
Systematics and Biogeography of the Dissochaeta alliance (Melastomataceae) - Universiteit Leiden
Melastomataceae
Arthrostemma ciliatum {Melastomataceae}
Beccarianthus sp MELASTOMATACEAE
Melastomataceae.Net - MELnames
Plants of Texas Rangelands » Families » Melastomataceae
Plants of Texas Rangelands » Families » Melastomataceae
Lady Bird Johnson Wildflower Center - The University of Texas at Austin
Micropropagation and Effect of Growth Retardants on Selected Species of Melastomataceae - Universiti Putra Malaysia...
Lady Bird Johnson Wildflower Center - The University of Texas at Austin
Endemism, species richness and morphological trends in Madagascan Memecylon (Melastomataceae)
Systematics of the Trembleya sensu stricto clade of Microlicia (Melastomataceae, Lavoisiereae)
Miconias do Estado do Rio de Janeiro Seção Chaenanthera Naudin (Melastomataceae)
Most Cited Articles - Perspectives in Plant Ecology, Evolution and Systematics - Journal - Elsevier
Blakea echinata (Melastomataceae: Blakeeae): a new species from the Caribbean rainforest of Panama | Phytotaxa
Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T....
Volume 52 Issue 3 | Willdenowia
Chemical profile, antioxidant and anti-inflammatory properties of Miconia albicans (Sw.) Triana (Melastomataceae) fruits...
Koeltz Botanical Books. Products tagged with 'Phylogeny'
A new saxicolous species of Acisanthera (Melastomataceae: Marcetieae) from Chapada dos Guimarães National Park, Mato Grosso,...
Fl. MO Vol. 3 @ efloras.org
Aciotis paludosa - Wikispecies
SciELO - Brazil - Isotopic variation among Amazonian floodplain woody plants and implications for food-web research Isotopic...
Species10
- Melastomataceae (/mɛləstoʊmɑːˈteɪsiˌaɪ, -siːˌiː/) is a family of dicotyledonous flowering plants found mostly in the tropics (two-thirds of the genera are from the New World tropics) comprising c. 175 genera and c. 5115 known species. (wikipedia.org)
- Pl. go through species page of Melastomataceae with images of species in efloraofindia. (google.com)
- Dissochaeta Blume (Melastomataceae, tribe Dissochaeteae) is well-known as a scrambling plant genus found in Southeast Asia, where it is an inhabitant of the tropical rainforests or evergreen forests.The main objectives of this thesis are to clarify the relationships among species and genera within the Dissochaeta alliance and to provide a new classification, which reflects the evolutionary and biogeographic traits of this plant group. (universiteitleiden.nl)
- Zhou Q-J, Dai J-H, Lin C-W, Denda T, Zhou R-C, Liu Y (2019) Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa . (pensoft.net)
- Bredia Blume (Sonerileae, Melastomataceae ) was originally described based on B. hirsuta Blume ( Blume 1849 ), a species in Taiwan and the Ryukyu islands. (pensoft.net)
- A new saxicolous species of Acisanthera (Melastomataceae: Marcetieae) from Chapada dos Guimarães National Park, Mato Grosso, Brazil. (botanica.org.br)
- Intact tropical forests are generally considered to be resistant to invasions by exotic species, although the shrub Clidemia hirta (Melastomataceae) is highly invasive in tropical forests outside its native range. (stir.ac.uk)
- Release from natural enemies (e.g., herbivores and pathogens) contributes to C. hirta invasion success where native melastomes are absent, and here we examine the role of enemies when C. hirta co-occurs with native Melastomataceae species and associated herbivores and pathogens. (stir.ac.uk)
- This suggests host-sharing by specialist Melastomataceae herbivores is occurring and may explain why invasion success of C. hirta is lower on Borneo than at locations without related native species present. (stir.ac.uk)
- This name is the accepted name of a species in the genus Dinophora (family Melastomataceae ). (theplantlist.org)
Genus2
- Dissochaeta Blume (Melastomataceae, tribe Dissochaeteae) is well-known as a scrambling plant genus found in Southeast Asia, where it is an inhabitant of the tropical rainforests or evergreen forests. (universiteitleiden.nl)
- Bredia ( Melastomataceae ) is an Asian genus that extends from central and southern mainland China to Taiwan and the Ryukyu islands. (pensoft.net)
Systematics2
- Systematics and Phylogeny of Siphanthera (Melastomataceae). (koeltz.com)
- Systematics, phylogeny, and biogeography of Chaetolepis (Melastomataceae). (wikimedia.org)
Miconia1
- Nomenclatural novelties in Miconia (Melastomataceae: Miconieae). (wikimedia.org)
Family1
- There are some 175 accepted genera in the Melastomataceae family as of May 2022. (wikipedia.org)
Morphological1
- Seed diversity in the Miconieae (Melastomataceae): morphological characterization and phenetic relationships. (wikimedia.org)
Almeda1
- Frank Almeda (born 1946), U.S: botanist specialized in Melastomataceae . (wikimedia.org)
Juss2
- Taxon Profile of Melastomataceae Juss. (wa.gov.au)
- Familia Melastomataceae Juss. (crescentbloom.com)
Miconieae1
- Untangling inflorescences in Miconieae (Melastomataceae): development, typology, and the systematic and evolutionary implications. (bvsalud.org)
Myrtaceae1
- La mayoría de estas especies pertenece a dos familias, Melastomataceae y Myrtaceae. (bvsalud.org)
Revision1
- Revision of Monochaetum (Melastomataceae: Melastomateae) in Colombia. (koeltz.com)