Pinaceae
Morphological and secretory characterization of extrafloral nectaries in plants of coastal Veracruz, Mexico. (1/6)
BACKGROUND AND AIMS: Morphological descriptions of the extrafloral nectaries (EFNs) of certain plant species are common in the literature, but they rarely relate morphology with histology, gland distribution and secretory attributes. In this study a morphological/secretory characterization of EFNs occurring on several plant species in a tropical coastal community is made and the implications of gland attributes discussed from a functional perspective. METHODS: The morphology and nectar secretion of the EFNs of 20 plant species are characterized through scanning electron microscopy, histochemical detection of reducing sugars (Fehling's reagent) and nectar volume/concentration estimates. KEY RESULTS: Sixty-five per cent of plant species in coastal communities had EFNs on vegetative structures and 35 % of species had glands on reproductive and vegetative organs. The Fabaceae is the plant family with the most species with EFNs and most diversity of gland morphologies. Four types of vascularized nectaries and four of glandular trichomes are described; sugar-secreting trichomes are characterized using Fehling's technique, and the first descriptions of unicellular and peltate trichomes functioning as EFNs are provided. Glands of ten plant species and six genera are described for the first time. Four plant species possess more than one morphological type of EFN. Eleven species have EFNs in more than one location or organ. More complex glands secrete more nectar, but are functionally homologous to the aggregations of numerous secretory trichomes on specific and valuable plant organs. CONCLUSION: Important diversity of EFN morphology was foundin the coastal plant community studied. Both vascularized and non-vascularized EFNs are observed in plants and, for the latter, previously non-existent morpho-secretory characterizations are provided with a methodological approach to study them. It is recommended that studies relating EFN attributes (i.e. morphology, distribution) with their differential visitation by insects (i.e. ants) and the cost of maintenance to the plants are carried out to understand the evolution of these glands. (+info)Apotirucallane and tirucallane triterpenoids from Cedrela sinensis. (2/6)
Nine new triterpenoids, 1-9, were isolated from the cortex of Cedrela sinensis (Meliaceae), together with six known compounds, sapelin E acetate, grandifoliolenone, azadirone, bourjotinolone A, piscidinol A, and hispidol B. The structures of 1-9 were determined by the 2D NMR experiments, chemical methods, and X-ray crystallography. (+info)Floral development in the tribe Cedreleae (Meliaceae, sub-family Swietenioideae): Cedrela and Toona. (3/6)
BACKGROUND AND AIMS: Floral development of Cedrela and Toona, the genera comprising the basal tribe Cedreleae of the sub-family Swietenioideae of Meliaceae, is described. The focus was on three endangered, ecologically and economically important species: Cedrela fissilis, Cedrela odorata and Toona ciliata. The aims of the study were to characterize the patterns of floral development in the tribe and to establish apomorphic and plesiomorphic floral characters in relation to other taxa within the family based on the current molecular phylogeny of Meliaceae. METHODS: A detailed floral structural and developmental study was completed using both scanning electron microscopy and visualization of microtome sections with a light microscope. KEY RESULTS: Twelve floral developmental stages were identified. The initial development of the pentamerous flowers of both Toona and Cedrela is strikingly similar. The morphological differences observed between them are due to differential patterns of organ elongation and adnation/connation occurring late in development. Additionally, the formation of functionally male and female flowers was found to occur at specific positions within the inflorescence. CONCLUSIONS: Due to the basal position of the tribe Cedreleae in the phylogeny of Meliaceae, functionally either male or female pentamerous flowers and the presence of (at least partially) free stamens may be considered plesiomorphic traits within the family. In contrast, sympetaly and the absence of nectaries in Cedrela species are synapomorphies. (+info)Molecular evidence of cryptic speciation, historical range expansion, and recent intraspecific hybridization in the Neotropical seasonal forest tree Cedrela fissilis (Meliaceae). (4/6)
(+info)Oxygen isotopes in tree rings are a good proxy for Amazon precipitation and El Nino-Southern Oscillation variability. (5/6)
(+info)New limonoids and a dihydrobenzofuran norlignan from the roots of Toona sinensis. (6/6)
(+info)I apologize for any confusion, but "Cedrela" is not a medical term or concept. It is the name of a genus of trees that are commonly known as cedars. The wood from these trees is often used in various industries, including furniture making and construction. I hope this clarifies things for you. If you have any questions related to medicine or health, please don't hesitate to ask!
I apologize for any confusion, but "Meliaceae" is not a medical term. It is a taxonomic category in botany, referring to the Mahogany family of plants, which includes around 50 genera and over 1,300 species of trees and shrubs. Some of these plants have medicinal properties, but "Meliaceae" itself does not have a medical definition.
I apologize for any confusion, but "Pinaceae" is not a medical term. It is a taxonomic category in botany, referring to the pine family of coniferous trees and shrubs. This family includes familiar plants such as pines, firs, spruces, and hemlocks.
If you have any medical terminology or concepts that you would like me to define or explain, please let me know!
"Concatenated DNA" is a term used to describe two or more DNA molecules that are linked together in a head-to-tail fashion, forming a continuous double helix. This can occur either naturally or through laboratory manipulation. In the context of molecular biology and genetics, concatenation refers to the joining of multiple DNA fragments into one longer molecule.
Concatenated DNA molecules are often used in various applications, such as cloning large DNA sequences, constructing artificial chromosomes, or studying the recombination and repair of DNA. The process of creating concatemers (the plural form of concatener) typically involves ligating multiple copies of a DNA fragment together using an enzyme called a ligase, which forms covalent bonds between the ends of the fragments to create a single, uninterrupted molecule.
It is important to note that "DNA, concatenated" is not a formal medical term or diagnosis but rather a technical term used in molecular biology and genetics research.
Cedrela
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Odorata10
- Daza Cedrela odorata L. - West Indies and from 24° N in Mexico south to 28° S in Argentina Cedrela oaxacensis C.DC. (wikipedia.org)
- Cedrela odorata is a very important timber tree, producing a lightweight fragrant wood with very good resistance to termites and other wood-boring insects, and also rot-resistant outdoors. (wikipedia.org)
- Some species are now CITES-listed, in particular Cedrela odorata. (wikipedia.org)
- The amendment on cedars primarily targeted Cedrela odorata but also called for the inclusion of the 16 other species of that genus because of their similarities, with an annotation to ensure the Convention's controls focus on the main commodities in international trade for these trees. (cites.org)
- Spanish cedar (Cedrela odorata) is a leaf-bearing tree native to tropical regions of the Western Hemisphere, including the western coast of Mexico, Central American, the West Indies and throughout South America at altitudes of 4,000 feet or less. (hobbyseeds.com)
- Specimen Details: Cedrela odorata L. (nybg.org)
- It is denser than Cedrela odorata and not so highly regarded. (madinter.com)
- By comparing growth rings in Cedrela odorata trees found in the Rio Paru watershed of the eastern Amazon River with hundreds of similar chronologies in North and South America, scientists have shown an inverse relationship in tree growth, and therefore precipitation patterns, between the areas. (eurasiareview.com)
- Cedrela odorata (Meliaceae) is considered as one of the most valuable forest tree in the tropics. (bvsalud.org)
- The sequence of anatomical changes that takes place during the formation of adventitious roots in shoots of Cedrela odorata cultured in vitro is described in this study. (bvsalud.org)
Meliaceae3
- Cedrela is a genus of several species in the mahogany family, Meliaceae. (wikipedia.org)
- A Monograph of Cedrela (Meliaceae). (wikipedia.org)
- The goal of this project is to protect a newly discovered, Critically Endangered tree species, Cedrela angusticarpa (Meliaceae), and its associated threatened tree species in the Mache Chindul Cordillera, an internationally recognized but poorly known biodiversity hotspot of Chocó in north-west Ecuador. (fondationfranklinia.org)
Fissilis8
- Can Seeds Storage Conditions Influence the Quality of Cedrela fissilis Seedlings? (avantipublishers.com)
- So, we studied the influence of Cedrela fissilis seed storage conditions on its emergence and the morphological quality of produced seedlings. (avantipublishers.com)
- Circular Técnica 113: Cedro (Cedrela fissilis). (avantipublishers.com)
- Barstow M. Cedrela fissilis. (avantipublishers.com)
- Tree-ring width chronologies of cedro ( Cedrela fissilis Vell. (cabi.org)
- Climate variability of the southern Amazon inferred by a multi-proxy tree-ring approach using Cedrela fissilis vell. (cabi.org)
- Vegetative rescue of Cedrela fissilis Vell. (bvsalud.org)
- by the rooting of cuttings from epicormic and canopy sprouts / Resgate vegetativo de Cedrela fissilis Vell. (bvsalud.org)
Genus1
- The listing in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora of three species of teatfish and all 17 species of cedars of the genus Cedrela from the Americas enters into force today. (cites.org)
Moritz ex Turcz1
- Cedrela montana Moritz ex Turcz - Colombia & Ecuador Cedrela nebulosa T.D. Penn. (wikipedia.org)
Sinensis9
- Cedrela sinensis - Chinese Cedar (Chinese Toon) Tree is a spectacular tree in spring when the new foliage is pale pink. (seedscollector.com)
- Cedrela sinensis 'Flamingo' is characterized by its slender, erect branches that bear pinnate leaves of rich, warm-pink in early spring. (leafland.co.nz)
- Cedrela sinensis 'Flamingo' can be halved in height or pruned to the ground to encourage a profusion of new stems. (leafland.co.nz)
- In the fall, Cedrela sinensis 'Flamingo' produces yellow leaves, adding to its seasonal interest. (leafland.co.nz)
- Cedrela sinensis 'Flamingo' also produces beautiful, fragrant white flowers that are arranged in drooping clusters during the summer months. (leafland.co.nz)
- Cedrela sinensis is deciduous and native to eastern and southeastern Asia. (leafland.co.nz)
- Cedrela sinensis 'Flamingo' was developed in Australia before 1930. (leafland.co.nz)
- Toona sinensis, anteriormente Cedrela sinensis). (bvsalud.org)
- Toona sinensis formerly Cedrela sinensis) and produces various LIMONOIDS (e.g., toonins). (bvsalud.org)
Species3
- On 28 October 2022 all Neo-tropic Cedrela species were added to CITES Appendix II. (wikipedia.org)
- These species are currently accepted: Cedrela angustifolia Sessé & Moc. (wikipedia.org)
- The EU withdrew its proposal to include Cedrela - a group of tropical tree species found in Latin America - after facing hostile pressure from Latin American and Caribbean countries. (traffic.org)
Chronologies1
- The new Cedrela chronologies from the Amazon, when compared with the hundreds of tree-ring chronologies in temperate North and South America, document this Pan American resonance of climate and ecosystem extremes in the centuries before widespread deforestation or human-caused climate change," said Dave Stahle, Distinguished Professor of geosciences and first author of a study documenting the findings in the journal Environmental Research Letters . (eurasiareview.com)
Teatfish1
- International trade in the these teatfish, and in logs, sawn wood, veneer sheets and plywood of Cedrela trees will be regulated and controlled in accordance with the provisions of CITES Appendix II from now on. (cites.org)
Mahagoni1
- Cedrela mahagoni L. Cedrus mahogani Mill. (pfaf.org)
Costa Rica1
- Costa Rica south to Argentina Cedrela kuelapensis T.D. Penn. (wikipedia.org)
Reconstructions1
- The connection was not documented until researchers at the University of Arkansas Tree Ring Laboratory, along with colleagues from Brazil and Argentina, developed rainfall reconstructions from growth rings in Cedrela trees. (eurasiareview.com)
Trees1
- The long climate history written in the growth rings of old Cedrela trees in Amazonia will surely be important to the sustainability of the biome. (eurasiareview.com)
Colombia1
- In 1542, Philipp von Hutten traveled from Coro over this area en route towards Colombia. (wikipedia.org)
Climate1
- While that remains an open question, the longer Cedrela-based precipitation record indicates that periods of rainfall extremes occurred in the past and the current extremes might be partly due to natural climate rhythms. (eurasiareview.com)
Levels1
- The same is likely to happen with Cedrela if the current exploitation levels continue. (traffic.org)
Cedro1
- Os objetivos deste trabalho foram: avaliar a qualidade fisiológica de sementes de cedro (Cedrela fissilis), procedentes de localidades do sul do Brasil, através de testes de vigor e avaliar diferentes tratamentos nas sementes para controle de patógenos e para promoção da germinação da espécie. (ufv.br)
Dugesii1
- Cedrela dugesii Watson Cedrela glaziovii C.DC. (pfaf.org)
Juss1
- Cedrela guianensis A.Juss. (pfaf.org)
Roem1
- Cedrela mexicana M.Roem. (theferns.info)
Spanish1
- We, www.wirjoindustriesnv.com , do have spanish cedar / Cedrela odorat logs for sale/ export. (globalwood.org)
Tree1
- In this context, we evaluate the stable carbon isotope record of cellulose from tree-rings of Cedrela from the Amazon Forest and the Caatinga, aiming to identify intra-annual patterns, climatic signals and possible tree strategies associated with precipitation and temperature. (ufla.br)
Wood7
- Presentation Cigarette Box ","M2":"Rectangular cigarette box with hinged lid, raised center element engraved with parallel lines and monogram, opening to cedrela wood interior with three. (mcny.org)
- Cigarette Box ","M2":"Rectangular box with hinged domed lid edged on three sides with applied wire molding, inside lid gilded, and base lined with cedrela wood. (mcny.org)
- Cigarette Box ","M2":"Rectangular box with cushion hinged lid, opening to cedrela wood liner with four shaped dividers, short applied molding at front edge of lid, and two baize. (mcny.org)
- Cigarette Box ","M2":"Rectangular cigarette box with hinged flat cover, opening to cedrela wood interior. (mcny.org)
- Cigarette Box ","M2":"Rectangular cigarette box with hinged cushion lid, opening to two-part cedrela wood liner. (mcny.org)
- Cedrela wood interior with one partition. (mcny.org)
- Cigarette Box ","M2":"Rectangular box with hinged lid, gilded on interior, opening to a cedrela wood box with one divider, sides and lid with engine-turned decoration, all edges. (mcny.org)
Quality1
- Access safe and reliable abortion pills in Cedrela, we offer high-quality and pain-free abortion pills to terminate from 4 weeks to 28 weeks of pregnancy at affordable prices. (faithwomensclinic.com)
South1
- Costa Rica south to Argentina Cedrela kuelapensis T.D. Penn. (wikipedia.org)