Results 151 to 160 of about 2,145 (170)
Some of the next articles are maybe not open access.

Effect of elicitors in Poincianella pyramidalis callus culture in the biflavonoid biosynthesis

Industrial Crops and Products, 2018
Abstract Poincianella pyramidalis is an endemic Brazilian species that grows in semi-arid region (Caatinga) and employed by the local population as folk medicine. This species is characterized by the presence of bioactive flavonoids and biflavonoids, among them amentoflavone and agathisflavone.
Kicia Karinne Pereira Gomes-Copeland   +7 more
openaire   +1 more source

Behavior of the pollen tube of Poincianella pyramidalis (Tul.) L. P. Queiroz after compatible and incompatible crosses

open access: yesAfrican Journal of Agricultural Research Vol Pp, 2016
Aiming to analyze the pollen tube growth behavior in compatible and incompatible crosses in Poincianella pyramidalis, on-field crosses were performed using flowers of 30 randomly selected individuals, which were self- and cross-pollinated. In the cross-pollination, the pollen germinated and the pollen tube grew in the transmitting tissue of the pistil,
Elizanilda R DO Rêgo
exaly   +2 more sources

Congenital malformations and other reproductive losses in goats due to poisoning by Poincianella pyramidalis (Tul.) L.P. Queiroz (=Caesalpinia pyramidalis Tul.)

Toxicon, 2016
In the semiarid region of Brazil, in areas with vegetation composed mainly of Poincianella pyramidalis, several cases of congenital malformation and reproductive losses were observed in goats and sheep from 2012 to 2014. To determine the teratogenic effect of P. pyramidalis, two groups of eight goats each were used. Goats from Group 1 received fresh P. 
Suélen Dias Santos dos Reis   +6 more
openaire   +2 more sources

AVALIAÇÃO DA ATIVIDADE ANTIMICROBIANA DA MICROEMULSÃO ENRIQUECIDA COM EXTRATO CLOROFÓRMICO DE POINCIANELLA PYRAMIDALIS

II Congresso Brasileiro de Biotecnologia On-line, 2022
Introdução: Com a aumento da resistência bacteriana aos antibióticos convencionais e consequente escalada de complicações na saúde humana, tem-se buscado investimento em pesquisa e tecnologias no combate à resistência antimicrobiana, dentre essas, muita atenção tem se dado às fontes de matrizes vegetais.
Luís Gustavo Guimarães Moura   +4 more
openaire   +1 more source

Controlling Dactylopius opuntiae with Fusarium incarnatum–equiseti species complex and extracts of Ricinus communis and Poincianella pyramidalis

Journal of Pest Science, 2015
In northeast Brazil, the cactus Opuntia ficus-indica is a key species for feeding livestock. However, productivity has been reduced by the cochineal scale Dactylopius opuntiae. Fusarium incarnatum-equiseti species complex (FIESC) strains obtained from D. opuntiae show potential as biological control agents.
Patrícia V. Tiago   +2 more
exaly   +2 more sources

Purification and characterization of a Kunitz inhibitor from Poincianella pyramidalis with insecticide activity against the Mediterranean flour moth

Pesticide Biochemistry and Physiology, 2015
This paper describes the characterization of a trypsin inhibitor from Poincianella pyramidalis seeds (PpyTI). The partial sequencing of PpyTI revealed homology to Kunitz inhibitors, clustered as a member of Family I03 in MEROPS database. PpyTI has a single polypeptide chain of 19,042 Da and presents stability at high temperatures (up to 70 °C) and a ...
Lays Cordeiro, Guimarães   +4 more
openaire   +2 more sources

Phenotypic plasticity and ecophysiological strategies in a tropical dry forest chronosequence: A study case with Poincianella pyramidalis

Forest Ecology and Management, 2015
Abstract The plasticity of functional attributes is an important strategy for the acclimation and establishment of plants in areas that undergo natural regeneration. The irregular rainfall of the Brazilian tropical dry forest is an important environmental filter for the determination of the set of species that can successfully establish in different ...
Hiram M. Falcão   +5 more
openaire   +1 more source

Maturação de frutos e sementes de Poincianella pyramidalis (Tul) L.P Queiroz.

2023
O conhecimento sobre a formação de frutos e sementes de espécies nativas é considerada uma ferramenta importante para um melhor entendimento da dinâmica da Caatinga, como também de sua biologia e ecologia, para no futuro possibilitar o manejo e a conservação de populações naturais.
openaire   +1 more source

Clove Extract (Syzygium aromaticum) in Germination and Sanity of Catingueira Seeds (Poincianella pyramidalis (Tul.) L.P. Queiroz)

Journal of Experimental Agriculture International, 2020
This research aimed to evaluate the effects of Clove extract (Syzygium aromaticum) on germination and sanity of Catingueira seeds (Poincianella pyramidalis). Five treatments with Clove extract of India were applied at the following concentrations T1 (Control) = 40 mL of sterile H2O, T2= 10 mL extract + 30 mL of sterile H2O, T3= 20 mL extract + 20 mL of
Maria José de Holanda Leite   +4 more
openaire   +1 more source

Anatomical Comparison of Original and Regrowth wood from coppiced and Pollarded Poincianella Pyramidalis Trees in the Caatinga of Pernambuco, Brazil

IAWA Journal, 2012
Poincianella pyramidalis (Tul.) L.P. Queiroz (‘catingueira’) is one of the most used trees by rural communities for wood and charcoal in the caatinga of northeast Brazil. It grows rapidly and can survive and thrive after either wet or dry season coppicing or pollarding. This paper explores the anatomical basis for P. pyramidalis being a good choice for
Claudia Luizon Dias Leme, Peter Gasson
openaire   +1 more source

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