Buscar recursos académicos

Abstract We present the floristic study of Burseraceae in the state of Ceará, as part of the “Flora of Ceará: from Knowledge to Conservation” project. The study was based on the morphological analysis of specimens ...

RESUMO As briófitas estão entre as plantas menos estudadas no Pampa, com apenas cinco estudos brioflorísticos e 124 espécies listadas na Flora e Funga do Brasil. O objetivo desta pesquisa foi compilar informações e...

Abstract Background The floral transition in maize represents a pivotal developmental switch that determines flowering time, environmental adaptation, and yield-related traits. However, the molecular mechanisms governing...

ObjectiveThis study aimed to investigate the prognostic factors of endoscopic submucosal dissection (ESD) in early colorectal cancer patients and to develop a predictive model for assessing prognostic risk.MethodsWe retr...

Foi realizada a descrição morfológica das inflorescências, bem como das flores pistiladas e estaminadas, de uma população de Astrocaryum aculeatum Meyer, no Campus do Instituto Nacional de Pesquisas da Amazônia - ...

Abstract The Response Regulator (RR) gene family functions as a molecular “switch” in plant signal transduction, with TOC1 (PRR1) frequently acting as a transcriptional repressor that integrates both internal and ext...

Abstract A field study of the floral biology of Victoria amazonica (Poepp.) Sowerby (Nymphaeaceae) was made for comparison with the many studies made in cultivated plants, of Victoria in the past. In the study areas in t...

Catasetum fimbriatum is a dioecious species whose flowers fully adapted to an euglossinophilic mode of pollination. Euglossini male bees collect the volatile fragrances which are produced in osmophores on the flowers. In...

Duas espécies de Orchidaceae, Myoxanthus parvilabius (C. Schweinf.) Luer e Trichosalpinx intricata (Lind) Luer, foram registradas pela primeira vez para a flora brasileira, ambas encontradas no município de Santa Izabe...

Resumo São descritas dez novas espécies de Nectandra (Lauraceae) da flora do Brasil: do Acre, N. paucinervia (Krukoff 5244, NY) e N. purusensis (Krukoff 5257, NY); do Amazonas, N. embirensis (Krukoff 4652, NY) e N. tar...

This paper presents new regional chorological data for eighteen plant taxa, derived from our own collections and personal field observations during the vegetation seasons from 2015 to 2025. One of the recorded species - ...

A Reserva Florestal Ducke, localizada próxima a Manaus (AM), com uma área de 100 Km2, é um dos locais com maior densidade de coletas depositadas no herbário do INPA. Sua flora vascular foi aqui caracterizada, atravé...

Abstract A field study of the floral biology of two species of Nymphaea (Nymphaeaceae) wp.s made. N. rudgeana G.F.W. Meyer, a night flowering species, was studied around Manaus and Belém. It is visited by the scarab bee...

The synanthropic flora in the Mendoza urban area was studied in terms of its three most relevant sub-environments: house and school gardens, parks and borders of narrow ditches used to irrigate the whole city. The curren...

In order to identify concordant distributions of endemic vascular plants in the Monte desert, we analyzed the distributional data of 180 species endemic to the Monte desert with the optimality criterion implemented in th...

ABSTRACT The present study consists of the floristics-taxonomic survey of Bromeliaceae and Orchidaceae on rocky outcrops located at an Atlantic Forest-Caatinga transition area in Paraíba State, northeast of Brazil, in o...

RESUMO O objetivo do presente estudo é investigar e analisar a diversidade florística de Dioscoreaceae na Reserva Biológica do Alto da Serra de Paranapiacaba para aumentar o conhecimento florístico de Dioscoreales de...

Plant reproduction is an intricate process important for the survival of all dominant autotrophs and critical in agriculture and stable food production as the basis of our diet. Angiosperms undergo extreme transformation...

Se evaluó el uso de reguladores de crecimiento complementarios al ácido giberélico (GA3), como raleadores de flores y bayas en uva de mesa 'Thompson Seedless', en las regiones de Atacama y Metropolitana, Chile. Se uti...

A fruta-pão (Artocarpus altilis) e a jaca (A. heterophyllus) são comumente cultivadas na Amazônia. Ambas apresentaram vários picos de floração ao longo do ano. A fruta-pão floresceu na época chuvosa e na de estia...

Abstract Background Rhododendron fortunei, an endemic Chinese species, holds significant ornamental and economic value. MADS-box transcription factors play pivotal roles in regulating diverse aspects of plant growth and ...

Agricultural intensification has reduced biodiversity and leads to fundamental trade-offs between food production and conservation. Conventional approaches to food production are thus no longer suitable. In the present w...

Macroalgas são organismos tipicamente bentônicos, constituídos por um talo maduro, discreto e reconhecível a olho nu, cuja identificação microscópica é necessária. Diversos estudos foram realizados visando o con...

Flower morphology, nectary structure, nectar chemical composition, breeding system, floral visitors and pollination were analysed in Croton sarcopetalus, a diclinous-monoecious shrub from Argentina. Male flowers have fiv...