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Ecofisiologia de plantas da Amazônia1-Anatomia foliar e ecofisiologia de Pogonophora schomburgkiana Miers. (Euphorbiaceae) [PDF]

open access: yesActa Amazonica, 1978
Resumo Foi testada a hipótese de que em estratos mais expostos de uma árvore, porém em condições mais xéricas, as folhas apresentam estrutura mais xeroescleromorfa.
Angela Ma. C. Leite, Eduardo Lleras
doaj   +5 more sources

Ecofisiologia de plantas da Amazônia. 2 - Anatomia foliar e ecofisiologia de Bertholletia excelsa Humb. & Benpl. (Castanha-do-pará) - Lecythidaceae. [PDF]

open access: yesActa Amazonica, 1979
Resumo Variações anatômicas nas folhas de Bertholletia excelsa (Castanha-do-pará) coletadas a diferentes alturas da mesma árvore são apresentadas aqui. Encontrou-se que da base para a copa da árvore (com as condições tornando-se gradualmente mais xéricas)
Moacyr E. Medri, Eduardo Lleras
doaj   +3 more sources

Root traits in Crambe abyssinica Hochst and Raphanus sativus L. plants are associated with differential tolerance to water deficit and post-stress recovery [PDF]

open access: yesPeerJ, 2022
Background Previous studies have shown that Crambe abyssinica and Raphanus sativus are physiologically tolerant to water deficits; however, there is a lack of information on the mechanisms responsible for their tolerance regarding root morphological ...
Luciana Minervina de Freitas Moura   +6 more
doaj   +2 more sources

Polymorphism in a Neotropical toad species: ontogenetic, populational and geographic approaches to chromatic variation in Proceratophrys cristiceps (Müller, 1883) (Amphibia, Anura, Odontophrynidae) [PDF]

open access: yesPeerJ, 2022
Quantifying variability is important for understanding how evolution operates in polymorphic species such as those of the genus Proceratophrys Miranda-Ribeiro, 1920, which is widely distributed in South America. P.
Kleber Silva Vieira   +3 more
doaj   +2 more sources

Dormancy in seeds of brazilian cerrado and dense Ombrophilous forest

open access: yesBiodiversidade Brasileira, 2023
The Cerrado and the Dense Ombrophilous Forest are important brazilian biomes that together cover more than half of the country's territory. They have a vast and rich plant diversity which often has a block in the germination process called dormancy ...
Josinei Rodrigues Filho   +5 more
doaj   +1 more source

River Reorganization Affects Populations of Dwarf Cichlid Species (Apistogramma Genus) in the Lower Negro River, Brazil

open access: yesFrontiers in Ecology and Evolution, 2021
Alterations, such as drainage network reorganization, in the landscape in the Amazon basin influence the distribution range and connectivity of aquatic biota and, therefore, their evolution.
Carolina Sousa de Sá Leitão   +6 more
doaj   +1 more source

Metabolic, physiological and anatomical responses of soybean plants under water deficit and high temperature condition

open access: yesScientific Reports, 2022
Water deficit (WD) combined with high temperature (HT) is the major factor limiting agriculture worldwide, and it is predicted to become worse according to the current climate change scenario.
Roberto Gomes Vital   +11 more
doaj   +1 more source

Noncoding RNAs responsive to nitric oxide and their protein-coding gene targets shed light on root hair formation in Arabidopsis thaliana

open access: yesFrontiers in Genetics, 2022
An overview of the total Arabidopsis thaliana transcriptome, described previously by our research group, pointed some noncoding RNA (ncRNA) as participants in the restoration of hair-root phenotype in A.
Camilla Alves Santos   +4 more
doaj   +1 more source

Ecofisiologia de plantas forrageiras [PDF]

open access: yesPubvet, 2016
The study was conducted in order to conduct a review of the importance of ecophysiology of forage plants, to address the impacts of biotic and abiotic factors on plants and their morphological and physiological responses. The physical stress caused by soil compaction affect the development of the root system, is this condition plant shown as response ...
Róberson Pimentel   +9 more
openaire   +1 more source

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