Populus Deltoides
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Biodegradation of naphthalene and anthracene by chemo-tactically active rhizobacteria of populus deltoides
Several naphthalene and anthracene degrading bacteria were isolated from rhizosphere of Populus deltoides, which were growing in non-contaminated soil. Among these, four isolates, i.e. Kurthia sp., Micrococcus varians, Deinococcus radiodurans and Bacillus circulans utilized chrysene, benzene, toluene and xylene, in addition to anthracene and naphthalene. Kur
Brazilian Journal of Microbiology. Publicado em: 2010-12
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2. RESPOSTA DO ÁLAMO (Populus deltoides Marsh) À ADUBAÇÃO NITROGENADA EM DOIS SÍTIOS DO MUNICÍPIO DE SÃO MATEUS DO SUL, PARANÁ
RESUMO Os plantios de álamo realizados na região de São Mateus do Sul, PR, não tem o desenvolvimento esperado, pela ausência de informações a respeito de clones ideais, pragas, doenças e nutrição. Diante da carência de estudos sobre fertilização de povoamentos de álamo para as condições em que a espécie é plantada no Brasil e visando a melh
Ciênc. Florest.. Publicado em: 2007-06
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3. Metodologias de preparação de amostras de ferrugem para estudos morfológicos de urediniósporos por meio de microscopia eletrônica de varredura
Amostras de urediniósporos de ferrugens das espécies Melampsora epitea Thum., Melampsora medusae Thuem., Hemileia vastatrix Berk., Uromyces appendiculatum Pers., Puccinia sorghi Schwein., Tranzschelia discolor Fuckel e Phakopsora euvitis Ono, coletadas dos hospedeiros, chorão (Salix sp.), álamo (Populus deltoides Bartr. Ex. Marsh), cafeeiro (Coffea arabi
Summa Phytopathologica. Publicado em: 2006-09
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4. MODELAGEM DA ESTRUTURA DE FLORESTAS CLONAIS DE Populus deltoides Marsh. ATRAVÉS DE DISTRIBUIÇÕES DIAMÉTRICAS PROBABILÍSTICAS
RESUMO No presente estudo, foram avaliadas, entre os anos 1987 e 1995 (idades 1 a 9), as distribuições diamétricas de seis florestas clonais de Populus deltoides Marsh. plantadas em 1986. As funções probabilísticas normal, gama, beta, SB de Johnson e Weibull com dois e três parâmetros foram ajustadas aos dados observados utilizando na estimativa dos
Ciênc. Florest.. Publicado em: 2004-06
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5. EFEITO DA APLICAÇÃO DE CALCÁRIO EM ESTACAS DE Populus deltoides Bartr. ex Marsh CULTIVADAS EM VASO
RESUMO Com este trabalho estudou-se o comportamento do Populus deltoides referente ao seu desenvolvimento, quando submetido a diferentes doses de calcário. A pesquisa foi realizada no Centro Tecnológico de Silvicultura, na Universidade Federal de Santa Maria, município de Santa Maria, RS. O experimento constituiu-se de 48 unidades experimentais ordenadas
Ciênc. Florest.. Publicado em: 2002-12
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6. Compactación del suelo durante la cosecha forestal: evolución de las propiedades físicas
The long-term effects on soil compaction by different traffic intensities during forestry harvester operation were evaluated in field experiments on heavy clay, vertic Argiudol. A conventional 2WD 73.5 kW engine power tractor with a trailer, 4.2 Mg and 3.75 Mg total load respectively, were used on a multiclonal Populus deltoides (Marsh) 3x3 plantation. There
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2000-12
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7. Photophosphorylation and Carbon Dioxide Fixation by Chloroplasts Isolated from Populus deltoides1
A system has been developed for the isolation of photosynthetically active chloroplasts from leaves of Populus deltoides. A high proportion of the chloroplasts appeared intact. The maximum rates of different photosynthetic processes were as follows: CO2 fixation 3.5 micromoles per milligram chlorophyll per hour, noncyclic ATP synthesis 10 micromoles per mill
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8. Functional and Structural Changes in Senescing Populus deltoides (Bartr.) Chloroplasts 1
Chloroplasts isolated from Populus deltoides leaves were used to study age-dependent changes in the rate of cyclic photophosphorylation. Single leaves were used to measure CO2 fixation by leaf discs, chlorophyll concentration, and ATP synthesis. The ability of chloroplasts to synthesize ATP diminished steadily from the time of full leaf expansion, regardless
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9. Chlorophyll, Ribulose-1,5-diphosphate Carboxylase, and Hill Reaction Activity in Developing Leaves of Populus deltoides
The synthesis of chlorophyll and ribulose diphosphate carboxylase as well as the development of Hill reaction activity were followed in expanding Populus deltoides leaves and related to photosynthetic patterns. Total chlorophyll, which was not correlated with photosynthetic rate in expanding leaves, decreased slightly with age in very young leaves, due to a
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10. Stomatal Response of Populus Clones to Light Intensity and Vapor Pressure Deficit 1
Responses of stomata of clones of Populus candicans Ait. × P. berolinensis Dipp. and Populus deltoides Bartr. × P. caudina (Ten.) Bugala to two levels of light intensity and vapor pressure deficit were studied in controlled environments. Significant stomatal responses to light and vapor pressure deficit were observed. Interactive effects of low light inten
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11. Structure, inheritance, and expression of hybrid poplar (Populus trichocarpa x Populus deltoides) phenylalanine ammonia-lyase genes.
A heterologous probe encoding phenylalanine ammonia-lyase (PAL) was used to identify PAL clones in cDNA libraries made with RNA from young leaf tissue of two Populus deltoides x P. trichocarpa F1 hybrid clones. Sequence analysis of a 2.4-kb cDNA confirmed its identity as a full-length PAl clone. The predicted amino acid sequence is conserved in comparison wi
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12. Functional Characterization and Subcellular Localization of Poplar (Populus trichocarpa × Populus deltoides) Cinnamate 4-Hydroxylase1
Cinnamic acid 4-hydroxylase (C4H), a member of the cytochrome P450 monooxygenase superfamily, plays a central role in phenylpropanoid metabolism and lignin biosynthesis and possibly anchors a phenylpropanoid enzyme complex to the endoplasmic reticulum (ER). A full-length cDNA encoding C4H was isolated from a hybrid poplar (Populus trichocarpa × P. deltoides
American Society of Plant Physiologists.