Plant Mitochondria
Mostrando 1-12 de 367 artigos, teses e dissertações.
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1. Revisiting hydropotes of Nymphaeaceae: ultrastructural features associated with glandular functions
ABSTRACT Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scannin
Acta Bot. Bras.. Publicado em: 2020-03
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2. Revisiting hydropotes of Nymphaeaceae: ultrastructural features associated with glandular functions
ABSTRACT Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scannin
Acta Bot. Bras.. Publicado em: 11/11/2019
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3. Auxinic herbicides, mechanisms of action, and weed resistance: A look into recent plant science advances
Auxin governs dynamic cellular processes involved at several stages of plant growth and development. In this review, we discuss the mechanisms employed by auxin in light of recent scientific advances, with a focus on synthetic auxins as herbicides and synthetic auxin resistance mechanisms. Two auxin receptors were reported. The plasma membrane receptor ABP1
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
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4. Crude alkaloid extract of Rhazya stricta inhibits cell growth and sensitizes human lung cancer cells to cisplatin through induction of apoptosis
There is an urgent need to improve the clinical management of non-small cell lung cancer (NSCLC), one of the most frequent causes of cancer-related deaths in men and women worldwide. Rhazya stricta, an important medicinal plant used in traditional Oriental medicine, possesses anti-oxidant, anti-carcinogenic and free radical scavenging properties. This study
Genet. Mol. Biol.. Publicado em: 01/02/2013
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5. Plant responses to stresses: role of ascorbate peroxidase in the antioxidant protection
When plants are exposed to stressful environmental conditions, the production of Reactive Oxygen Species (ROS) increases and can cause significant damage to the cells. Antioxidant defenses, which can detoxify ROS, are present in plants. A major hydrogen peroxide detoxifying system in plant cells is the ascorbate-glutathione cycle, in which, ascorbate peroxid
Genet. Mol. Biol.. Publicado em: 2012
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6. Modulação da atividade mitocondrial pela S-nitrosoglutationa redutase em resposta ao estresse nutricional em suspensões celulares de Arabidopsis thaliana / Modulation of mitochondrial activity by S-nitrosoglutathione reductase in response to nutritional stress in Arabidopsis thaliana cell suspensions
Embora o radical óxido nítrico (NO) seja um importante sinalizador em plantas, pouco se conhece sobre os mecanismos que controlam sua homeostase na célula. Acreditase que a enzima S-nitrosoglutationa redutase (GSNOR) tenha um papel relevante no metabolismo de S-nitrosotióis (SNO), e consequentemente na homeostase do NO, através do catabolismo da S-nitro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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7. Identificação de interatores putativos envolvidos na localização de proteínas de duplo direcionamento em Arabidopsis thaliana / Identification of putative interactors involved in the localization of dual-targeted proteins in Arabidopsis thaliana
Most organellar proteins are nuclear encoded, synthesized in the cytosol and then targeted to their destination. Specific subcellular targeting is conducted by a complex machinery for the specific localization of the proteins, which includes targeting sequences, cytosolic proteins and specific organelar receptors. However, little is known about the process t
Publicado em: 2011
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8. Estudo da homeostase do radical óxido nítrico na bionergética mitocondrial e na resposta de defesa vegetal ao ataque de patógenos / Study of nitric homeostasis in mitochondrial bioenergetics and in plant defense response to pahogen attack
O controle da homeostase do óxido nítrico (NO), determinada pelo balanço entre os processos de síntese e degradação, é essencial para suas funções sinalizadoras. O presente estudo teve como objetivo geral buscar um melhor entendimento da homeostase do NO em plantas, enfocando a importância dessa molécula na bioenergética mitocondrial e na respost
Publicado em: 2010
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9. Mechanisms of synthesis and degradation of radical nitric oxide by mitochonderia of Arabidopsis thaliana / Mecanismos de sintese e degradação do radical oxido nitrico pela mitocondria de Arabidopsis thaliana
The objective of this work was to study the mechanisms of synthesis and degradation of NO by plant mitochondria, with emphasis on the influence of the NAD(P)H dehydrogenases and the alternative oxidase (AOX) in these processes. The experiments were carried out with mitochondria isolated from cells in culture of the model plant Arabidopsis thaliana. Initially
Publicado em: 2008
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10. Estudos sobre o duplo direcionamento de proteínas de plantas / Studies on the dual targeting of plant proteins
Compartimentalization of the metabolic processes in organelles, each one having a characteristic protein pool and distinct functions, is a property of eukaryote cells. A highly specific cellular system directs proteins, which are synthesized in the cytosol, to the proper organelles. However, due to functional overlaps between organelles, a given protein may
Publicado em: 2008
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11. Subcellular localization of sugarcane (Sccharum spp.) proteins : in silico characterization and functional evaluation / Localização subcelular de proteinas de cana-de-açucar (Sccharum spp.) : caracterização in silico e avaliação funcional
Plant cells are highly organized and many biological processes are associated with specialized subcellular structures. Subcellular localization is a key feature of proteins, since it is related to biological function. The determination of subcellular localization using computational prediction is a highly desirable strategy because experimental approaches ar
Publicado em: 2008
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12. Production, morphologic and ultra-structural analyses of Passiflora spp. callus. / ObtenÃÃo, anÃlises morfolÃgicas e ultra-estruturais de calos de Passiflora spp.
Brazil occupies a position of prominence in the passion fruit plant culture, being the largest world producer of passion fruit. In the last years, the increasing demand resulted in a expansion of the planted area resulting in the expansion and appearance of many diseases. Some species not cultivated, as Passiflora gibertii N. E. Brown and Passiflora edulis e
Publicado em: 2007