Cold Tolerance
Mostrando 1-12 de 187 artigos, teses e dissertações.
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1. Secagem na viabilidade e desenvolvimento embrionário de sementes de Ilex paraguariensis
Resumo A germinação de erva-mate tem sido apontada como baixa, irregular e lenta, com diferentes graus de dormência, tornando a produção de mudas um grande desafio. Estudos destinados a esclarecer os principais mecanismos de dormência presentes em sementes de erva-mate são de grande importância, porém, escassos. Diante disso, objetivou-se avaliar os
Ciênc. Florest.. Publicado em: 02/12/2019
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2. Ammopiptanthus mongolicus stress-responsive NAC gene enhances the tolerance of transgenic Arabidopsis thaliana to drought and cold stresses
Abstract Drought and cold are the primary factors limiting plant growth worldwide. The Ammopiptanthus mongolicus NAC11 (AmNAC11) gene encodes a stress-responsive transcription factor. Expression of the AmNAC11 gene was induced by drought, cold and high salinity. The AmNAC11 protein was localized in the nucleus and plays an important role in tolerance to drou
Genet. Mol. Biol.. Publicado em: 14/11/2019
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3. Comparative Analysis of C-repeat Binding Factors (CBFs) in Tomato and Arabidopsis
Abstract Cold stress is one of the limiting factors of plant production that plants use different mechanisms for cold tolerance. CBF genes play critical role to regulate the cold responsive genes. To better understand of CBF gene functions, the tomato-CBFs and Arabidopsis-CBFs were evaluated using bioinformatics tools, and finally the expression patterns of
Braz. arch. biol. technol.. Publicado em: 29/08/2019
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4. Etiologia da mortalidade de miniestacas de Eucalyptus benthamii e possíveis fontes de inóculo
RESUMO Eucalyptus benthamii é originário da Austrália, cultivado na região Sul do Brasil, devido à sua tolerância ao clima frio. Durante a produção de mudas dessa espécie vários fatores bióticos e abióticos adversos têm surgido em viveiros. Dessa forma, o presente trabalho teve como objetivo avaliar a podridão de miniestacas de E. benthamii em
Summa phytopathol.. Publicado em: 10/07/2019
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5. PROGENY PERFORMANCE AND PATHOGEN ATTACK RELATIVE TO ELEVATION IN A NEOTROPICAL TREE
ABSTRACT Climate and resource availability at the parent tree location are known to explain progeny characteristics; however, few studies have examined the role of resistance or tolerance to pathogens, even though climate is a main driver of pathogen abundance. We hypothesize that climate at the parent tree location has a relatively greater influence on prog
CERNE. Publicado em: 20/05/2019
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6. Leaf proline content and its relation to fruit load and flowering in citrus under field conditions
Resumo Espécies de citros cultivadas em zonas temperadas têm brotação inibida no inverno, retornando na primavera quando elas também florescem. O principal fator que define o destino vegetativo ou reprodutivo das gemas é a presença de frutos em desenvolvimento. Baixas temperaturas no inverno retardam o metabolismo das plantas, que tem sido relatado c
Rev. Bras. Frutic.. Publicado em: 25/03/2019
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7. CspB of an arctic bacterium, Polaribacter irgensii KOPRI 22228, confers extraordinary freeze-tolerance
ABSTRACT Freezing temperatures are a major challenge for life at the poles. Decreased membrane fluidity, uninvited secondary structure formation in nucleic acids, and protein cold-denaturation all occur at cold temperatures. Organisms adapted to polar regions possess distinct mechanisms that enable them to survive in extremely cold environments. Among the co
Braz. J. Microbiol.. Publicado em: 2018-03
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8. Transcriptome sequencing analysis of alfalfa reveals CBF genes potentially playing important roles in response to freezing stress
Abstract Alfalfa (Medicago sativa L.) is an important perennial forage, with high nutritional value, which is widely grown in the world. Because of low freezing tolerance, its distribution and production are threatened and limited by winter weather. To understand the complex regulation mechanisms of freezing tolerance in alfalfa, we performed transcriptome s
Genet. Mol. Biol.. Publicado em: 06/11/2017
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9. Forage potential of native ecotypes of Paspalum notatum and P. guenoarum
ABSTRACT The Paspalum genus includes several species that are important for livestock in Rio Grande do Sul, such as P. notatum and P. guenoarum, typical of native pastures of the Pampa biome. The aim of this study was to investigate forage production and chemical composition of four ecotypes of these species in relation to the cv. ‘Pensacola’ (P. notatum
An. Acad. Bras. Ciênc.. Publicado em: 14/08/2017
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10. Antioxidant responses of wheat plants under stress
Abstract Currently, food security depends on the increased production of cereals such as wheat (Triticum aestivum L.), which is an important source of calories and protein for humans. However, cells of the crop have suffered from the accumulation of reactive oxygen species (ROS), which can cause severe oxidative damage to the plants, due to environmental str
Genet. Mol. Biol.. Publicado em: 2016-03
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11. Cloning of Ammopiptanthus mongolicus C-repeat-binding factor gene and its cold-induced tolerance in transgenic tobacco
C-repeat-binding factors (CBFs) are a type of important regulon in stress-related signal transduction pathways that control plant tolerance of abiotic stress. Ammopiptanthus mongolicus is the only evergreen broadleaf shrub in the northwest desert of China. The species shows strong resistance to environmental stress, especially to cold stress. An A. mongolicu
Braz. arch. biol. technol.. Publicado em: 25/10/2013
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12. Indução de tolerância à deficiência hídrica na germinação e crescimento inicial de sementes de feijoeiro / The induced tolerance to water stress in the germination and early growth of bean seeds
As condições ambientais desfavoráveis fazem com que os vegetais passem por adaptações e a forma como se protegem é essencial, podendo aumentar a produção e qualidade dos alimentos. O feijão (Phaseolus vulgaris L) é de grande valor econômico e de relevante interesse agronômico. Tratando-se de uma cultura de sensibilidade à temperatura e deficiên
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011