Results 41 to 50 of about 5,261 (228)
Does the seed disperser matter? The influence of dispersal type on survival of Araucaria angustifolia seeds [PDF]
, 2021 Abstract Zoochoric dispersion is fundamental for the colonization of habitats by plants with large and heavy seeds such as the Paraná pine (Araucaria angustifolia). This is an endangered conifer from South America whose recruitment is heavily impacted by animals, but the way that different zoochoric dispersal modes and deposition sites can ...
Larissa Inês Squinzani +2 more
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Pesquisa Florestal Brasileira, 2010 The objective of this study was to compare the efficiency in terms of number of seeds deposited under natural and artificial bird-perches set in degraded areas of Araucaria Forest.
Sandra Bos Mikich +1 more
doaj +1 more source
Revista do Museu de Arqueologia e Etnologia, 2022 Paleoclimate reconstitution for the state of São Paulo results from past and ongoing research efforts in palynology, anthracology, and stable isotope studies. In cases such as southern São Paulo, however, researchers are required to extrapolate data from
Tatiane de Souza +2 more
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Storage reserves and cellular water in mature seeds of Araucaria angustifolia [PDF]
Botanical Journal of the Linnean Society, 2002 Seed tissues of Araucaria angustifolia (Bertol.) Kuntze were investigated using histochemistry, transmission electron microscopy (TEM) and energy dispersive X-ray (EDX) analysis. Moisture content and water status in tissues were also evaluated. In the embryo, TEM studies revealed the presence of one to several central vacuoles and a peripheral layer of
VÍCTOR PANZA +4 more
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Acta Botânica Brasílica, 2015 Araucaria angustifolia seeds are recalcitrant, and their metabolism remains high during storage. This research aimed to describe the initiation of germination in A. angustifolia seeds during storage in order to standardize the assessment of physiological
Cristhyane Garcia Araldi +1 more
doaj +1 more source
Endangered plant-parrot mutualisms: seed tolerance to predation makes parrots pervasive dispersers of the Parana pine [PDF]
, 2016 Parrots are largely considered plant antagonists as they usually destroy the seeds they feed on. However, there is evidence that parrots may also act as seed dispersers.
Blanco, Guillermo +6 more
core +2 more sources
Elucidation of the polyamine biosynthesis pathway during Brazilian pine (Araucaria angustifolia) seed development [PDF]
Tree Physiology, 2017 Polyamines (PAs), such as spermidine and spermine, as well as amino acids that are substrates for their biosynthesis, are known to be essential for plant development. However, little is known about the gene expression and metabolic switches associated with the ornithine/arginine and PA biosynthetic pathway during seed development in conifers.
Leandro F, de Oliveira +6 more
openaire +2 more sources
Hevea brasiliensis seeds: A novel sustainable feedstock for ethanol production
Vietnam Journal of Chemistry, EarlyView.Abstract The rubber tree (Hevea brasiliensis) is cultivated on a large scale mainly for the extraction of latex in Brazil and Southeast Asia, also generating large quantities of seeds. These seeds currently do not have large‐scale applications and may thus be considered as a residue.
Giovano Tochetto +4 more
wiley +1 more source
Comparação entre o conteúdo de fenólicos e capacidade antioxidante de sementes [PDF]
, 2010 Frequent nut intake is associated with protective effects against cardiovascular diseases. In addition to the generally high contents of unsaturated fatty acids, polyphenol compounds seem to be also implicated in health promoting effects of nuts due to ...
ABE, Lucile Tiemi +2 more
core +3 more sources
Restoration Ecology, EarlyView.Abstract Introduction The Brazilian Atlantic Forest (BAF) is a biodiversity hotspot, and inoculating native seedlings with plant growth‐promoting microorganisms (PGPMs) may enhance seedling vigor for forest restoration. Objectives We performed a meta‐analysis to evaluate the effects of PGPMs on BAF seedlings and identify strategies to optimize ...
Yanka R. Kondo +3 more
wiley +1 more source