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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
17/03/2008 |
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Data da última atualização: |
29/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FUZINATTO, V. A.; PAGLIARINI, M. S.; VALLE, C. B. do. |
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Afiliação: |
Veridiana Aparecida Fuzinatto, UEM; Maria Suely Pagliarini, UEM; CACILDA BORGES DO VALLE, CNPGC. |
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Título: |
Evidence of programmed cell death during microsporogenesis in an interspecific Brachiaria (Poaceae: Panicoideae: Paniceae) hybrid. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 6, n. 2, p. 308-315, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Morphological changes have been investigated during plant programmed cell death (PCD) in the last few years due to the new interest in a possible apoptotic-like phenomenon existing in plants. Although PCD has been reported in several tissues and specialized cells in plants, there have been few reports of its occurrence during microsporogenesis. The present study reports a typical process of PCD during meiosis in an interspecific Brachiaria hybrid leading to male sterility. In this hybrid, some inflorescences initiated meiosis but it was arrested in zygotene/pachytene. From this stage, meiocytes underwent a severe alteration in shape showing substantial membrane blebbing; the cytoplasm became denser at the periphery; the cell nucleus entered a progressive stage of chromatin disintegration, and then the nucleolus disintegrated, and the cytoplasm condensed and shrunk. The oldest flowers of the raceme showed only the callose wall in the anthers showing obvious signs of complete sterility. |
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Palavras-Chave: |
Braquiária; Brasil; Campo Grande; Feed crops; Feed grasses; Mato Grosso do Sul; PCD. |
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Thesagro: |
Citogenética vegetal; Gramínea forrageira; Hibrido; Meiose; Melhoramento genético vegetal; Planta Forrageira. |
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Thesaurus Nal: |
Brazil; Cytogenetics; Hybrids; Meiosis; Plant breeding. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171766/1/Evidence-of-programmed-cell.pdf
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Marc: |
LEADER 02049naa a2200361 a 4500
001 1326640
005 2018-01-29
008 2007 bl uuuu u00u1 u #d
100 1 $aFUZINATTO, V. A.
245 $aEvidence of programmed cell death during microsporogenesis in an interspecific Brachiaria (Poaceae$bPanicoideae: Paniceae) hybrid.$h[electronic resource]
260 $c2007
520 $aMorphological changes have been investigated during plant programmed cell death (PCD) in the last few years due to the new interest in a possible apoptotic-like phenomenon existing in plants. Although PCD has been reported in several tissues and specialized cells in plants, there have been few reports of its occurrence during microsporogenesis. The present study reports a typical process of PCD during meiosis in an interspecific Brachiaria hybrid leading to male sterility. In this hybrid, some inflorescences initiated meiosis but it was arrested in zygotene/pachytene. From this stage, meiocytes underwent a severe alteration in shape showing substantial membrane blebbing; the cytoplasm became denser at the periphery; the cell nucleus entered a progressive stage of chromatin disintegration, and then the nucleolus disintegrated, and the cytoplasm condensed and shrunk. The oldest flowers of the raceme showed only the callose wall in the anthers showing obvious signs of complete sterility.
650 $aBrazil
650 $aCytogenetics
650 $aHybrids
650 $aMeiosis
650 $aPlant breeding
650 $aCitogenética vegetal
650 $aGramínea forrageira
650 $aHibrido
650 $aMeiose
650 $aMelhoramento genético vegetal
650 $aPlanta Forrageira
653 $aBraquiária
653 $aBrasil
653 $aCampo Grande
653 $aFeed crops
653 $aFeed grasses
653 $aMato Grosso do Sul
653 $aPCD
700 1 $aPAGLIARINI, M. S.
700 1 $aVALLE, C. B. do
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 6, n. 2, p. 308-315, 2007.
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Embrapa Gado de Corte (CNPGC) |
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