Pollination Requirement
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Abelhas visitantes florais e potenciais polinizadores da cajazeira (Spondias mombin L.) sob cultivo, na Chapada do Apodi, Cearà / Bee and flower visitors from potential pollinators mombin (Spondias Mombin L.) under cultivation in Apodi Plateau, State of CearÃ
The research was carried out from November of 2009 to January of 2010, in the Apodi plateau, situated in the county of Limoeiro do Norte, state of CearÃ. It was used 32 cajazeira trees (Spondias mombim L.) of the Lagoa Redonda cloning tree, grafted on the umbuzeiro tree (Spondias tuberose A.). The objective was to verify some variables regarding to floral b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2010
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2. Pollination- or Wound-Induced Kaempferol Accumulation in Petunia Stigmas Enhances Seed Production.
Flavonols are essential for pollen germination and tube growth in petunia and can be supplied by either the pollen or stigma at pollination. HPLC analysis and a sensitive bioassay demonstrated that both pollination and wounding induce flavonol accumulation, especially kaempferol, in the outer cell layers and exudate of the stigma. Pollination and wounding in
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3. Ablation of Papillar Cell Function in Brassica Flowers Results in the Loss of Stigma Receptivity to Pollination.
Plant reproduction in crucifers is dependent on interactions that occur at the stigma surface between the male gametophyte (pollen and pollen tube) and papillar cells. To dissect these complex interactions, papillar cells were genetically ablated by targeting the expression of a toxin to appropriate cells of the flower with a flower-specific and developmenta
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4. Competence of Immature Maize Embryos for Agrobacterium-Mediated Gene Transfer.
Agrobacterium-mediated transfer of viral sequences to plant cells (agroinfection) was applied to study the susceptibility of immature maize embryos to the pathogen. The shoot apical meristem of immature embryos 10 to 20 days after pollination from four different maize genotypes was investigated for competence for agroinfection. There was a direct correlation
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5. Pollen Germinates Precociously in the Anthers of raring-to-go, an Arabidopsis Gametophytic Mutant1
Pollen hydration is usually tightly regulated and occurs in vivo only when desiccated pollen grains acquire water from the female, thus enabling pollen tube growth. Pollen tubes are easily visualized by staining with decolorized aniline blue, a stain specific for callose. We identified a mutant, raring-to-go, in which pollen grains stained for callose before
American Society of Plant Physiologists.