Zygotic Embryo
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Optimum sample size in quantitative characteristics of seeds of polyembrynic mango
Abstract Determining the sample size in a scientific investigation is important because it gives reliability in the results together with the efficiency in the use of resources and optimization of time. Polyembryony is a characteristic that allows to obtaining clonal and zygotic plants in the same seed. In mango this characteristic is presented, however, th
Rev. Bras. Frutic.. Publicado em: 11/06/2018
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2. Recurrent Somatic Embryogenesis and Plantlet Regeneration in Psidium guajava L.
A simple and efficient protocol for recurrent somatic embryogenesis and plant regeneration is one of the prerequisites for genetic improvement of guava. An efficient reproducible regeneration somatic embryogenesis protocol was developed in four genotypes of Psidium guajava L. using immature zygotic embryo as starter explant. Somatic embryogenesis induction w
Braz. arch. biol. technol.. Publicado em: 06/05/2016
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3. Polyethylene glycol effects on somatic embryogenesis of papaya hybrid UENF/CALIMAN 01 seeds
Among commercial fruits, papaya (Carica papaya L.) is notably one of the most common ones around the world. The aim of the current study was to establish a somatic embryogenesis protocol for the hybrid UENF/CALIMAN 01, elucidating the effects of sucrose and 2,4-dichlorophenoxyacetic acid (2,4-D) on the induction of embryogenic cultures and the effect of poly
Theor. Exp. Plant Physiol.. Publicado em: 2013
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4. Embriogênese somática direta e criopreservação de embriões de Coffea arabica L. cv. Catuí Vermelho / Direct somatic embryogenesis and cryopreservation of embryos of Coffea arabica L. cv. Catuaí Vermelho
A espécie Coffea arábica é comumente propagada utilizando sementes ou estacas, entretanto a embriogênese somática apresenta-se como alternativa para sua propagação com alta taxa de multiplicação e maior uniformidade. A embriogênese possibilita ainda a conservação do material genético da espécie utilizando técnicas de criopreservação. Vários
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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5. Cloning and expression of embryogenesis-regulating genes in Araucaria angustifolia (Bert.) O. Kuntze (Brazilian Pine)
Angiosperm and gymnosperm plants evolved from a common ancestor about 300 million years ago. Apart from morphological and structural differences in embryogenesis and seed origin, a set of embryogenesis-regulating genes and the molecular mechanisms involved in embryo development seem to have been conserved alike in both taxa. Few studies have covered molecula
Genetics and Molecular Biology. Publicado em: 20/01/2012
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6. Comparative proteomical analysis of zygotic embryo and endosperm from coffea arabica seeds.
During coffee seed development, proteins are predominantly deposited in cotyledons and in the endosperm. Reserve proteins of the 11S family are the most abundant globulins in coffee seeds, acting as a nitrogen source during roasting and guaranteeing flavor and aroma. The aim of the present study was to compare the protein profiles of endosperm and zygotic em
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. Publicado em: 2011
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7. Comparative proteomical analysis of zygotic embryo and endosperm from coffea arabica seeds.
During coffee seed development, proteins are predominantly deposited in cotyledons and in the endosperm. Reserve proteins of the 11S family are the most abundant globulins in coffee seeds, acting as a nitrogen source during roasting and guaranteeing flavor and aroma. The aim of the present study was to compare the protein profiles of endosperm and zygotic em
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. Publicado em: 2011
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8. Molecular cloning and expression analysis of a zebrafish novel zinc finger protein gene rnf141
ZNF230 is a novel zinc finger gene cloned by our laboratory. In order to understand the potential functions of this gene in vertebrate development, we cloned the zebrafish orthologue of human ZNF230, named rnf141. The cDNA fragment of rnf141 was obtained by rapid amplification of cDNA ends (RACE). The open reading frame (ORF) encodes a polypeptide of 222 ami
Genetics and Molecular Biology. Publicado em: 10/07/2009
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9. Physiological, biochemical aspects and comparative proteomic during maturation, germination and seedling conversion of Ocotea catharinensis Mez. (Lauraceae). / Aspectos fisiológicos, bioquímicos e análise proteômica comparativa durante a maturação, germinação e conversão em plantas de embriões de Ocotea catharinensis Mez. (Lauraceae).
The great similarity among the events of zygotic and somatic embryogenesis allows the establishment of parameters for accompaniment of these processes. In the present work it was studied the somatic embryogenesis in Ocotea catharinensis, in the maturation and germination phases, and the zygotic embryogenesis. The biochemical parameters and differential expre
Publicado em: 2009
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10. Ativação de genes apoptóticos no bloqueio do desenvolvimento em embriões bovinos / Activation of apoptotic genes at developmental block in bovine embryo development
Maternal-zygotic transition is a complex phenomenon characterized by the initiation of transcription in the embryo and the transition of maternal mRNA with embryonic mRNA. It is believed that the mRNAs and proteins synthethized by the oocyte during its growth and final maturation allow the zygote to develop during the early stages of embryo development up to
Publicado em: 2009
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11. In vitro culture and somatic embryogenesis of zygotic embryos of macaúba (Acrocomia aculeata (Jacq). Loddiges) / Cultivo in vitro e embriogênese somática de embriões zigóticos de macaúba (Acrocomia aculeata (Jacq). Loddiges)
The objectives of this work were to propose the proceeds regarding the culture of embryos and induction of somatic embryogenesis of the Acrocomia aculeata palm tree using as explants source the mature and immature zygotic embryos. In the in vitro embryo culture the following were studied: a) the effect of the incubation conditions and of the activated charco
Publicado em: 2008
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12. ObtenÃÃo e CaracterizaÃÃo de calos e plÃntulas a partir de embriÃes zigÃticos imaturos de Coffea arabica L. e anÃlise in silico do Gene Serk / Obtaining and characterization of calluses and plantules starting from immature zygotic embryos of Coffea arabica L. and gene SERK in silico analysis
It was intended in this work be obtained alternatives to the explant to foliate and nodal seeking the micropropagation of you cultivate of coffee plants related to the quality of the drink, like âBourbon Amareloâ and to the productivity as the âRubiâ for the south area of Minas Gerais. A main plant of Bourbon Amarelo was used for obtaining of the fruits
Publicado em: 2008