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Registros recuperados: 5
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Molecular cloning and expression analysis of the MaASR1 gene in banana and functional characterization under salt stress Electron. J. Biotechnol.
Miao,Hongxia; Wang,Yuan; Liu,Juhua; Jia,Caihong; Hu,Wei; Sun,Peiguang; Jin,Zhiqiang; Xu,Biyu.
Background Abscisic acid (ABA)-, stress- and ripening-induced protein (ASR) is plant-specific hydrophilic transcriptional regulators involved in sucrose stress and wounding in banana. However, it is not known whether banana ASR genes confer salt stress tolerance. The contexts of the study was to analysis the sequence characterization of banana ASR1, and identify its expression patterns and function under salt stress using quantitative real-time PCR (qPCR) and overexpression in Arabidopsis. The purpose was to evaluate the role of banana ASR1 to salt stress tolerance employed by plants. Results A full-length cDNA isolated from banana fruit was named MaASR1, and it had a 432 bp open reading frame (ORF) encoding 143 amino acids. MaASR1 was preferential...
Tipo: Journal article Palavras-chave: ASR; Banana; Expression patterns; Salt resistance.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000600006
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Quantitative evaluation of soil ion content using an imaginary part model of soil dielectric constant Scientia Agricola
Hu,Wei; Zhang,Lei; Chen,Binglin; Zhou,Zhiguo.
ABSTRACT: An imaginary part model of soil dielectric constant for predicting the soil salinity status was developed based on a series of relations between dielectric imaginary part and soil bulk conductivity, soil bulk conductivity and soil solution electrical conductivity, and soil solution electrical conductivity and ion contents in soil using pot trials with different soil salinity levels in the 2008 growing season. This model was calibrated and tested with data from the 2009 growing season. The results showed that the inverted values of the total concentration of salt (Sc), Cl−, and Ca2+ at low frequencies (P-band of microwave observations) from the imaginary part model fitted well with the observed values, since root mean square errors (RMSEs) were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microwave sensing; Prediction; Soil salinity.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001400299
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Soil water content temporal-spatial variability of the surface layer of a Loess Plateau hillside in China Scientia Agricola
Hu,Wei; Shao,Ming An; Wang,Quan Jiu; Reichardt,Klaus.
Surface soil moisture exhibits an important variability in terms of spatial and temporal domains, which may result in critical uncertainties for agricultural water management. The purposes of this study were (i) to characterize the temporal dynamics and stability of the spatial variability of the surface 0-6 cm soil water content θon a hill-slope; (ii) to investigate issues related to soil moisture conditions including dominating factors on soil moisture and to the estimation of the mean θ. During a period of more than one month θwas measured on thirteen days by Frequency Domain Reflectometry using a 10 x 10 m grid of measurement points covering a 60 x 280 m domain within a hill-slope of the Loess Plateau in China. Soil water content exhibited a moderate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Surface soil moisture; Coefficient of variation; Correlation length; Temporal stability.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300008
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Spatial variability of soil hydraulic properties on a steep slope in the loess plateau of China Scientia Agricola
Hu,Wei; Shao,Ming An; Wang,Quan Jiu; Fan,Jun; Reichardt,Klaus.
The understanding of the structure of the spatial variability of soil surface hydraulic properties on steep slopes is important for modeling infiltration and runoff processes. The objective of this study was to investigate the spatial variability of these properties on a steep slope of the Loess Plateau in northwest China. A 9600 m² area was systematically sampled in a grid of 106 points spaced 10 m x 10 m. Hydraulic properties were determined with a disc infiltrometer under multiple pressure heads (-15, -9, -6, -3, 0 cm) at each sample point. Classical and geo-statistical methods were used for data analysis. The results indicated that the variation of Gardner's a and hydraulic conductivities at all applied pressure heads was moderate and the heterogeneity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Disc infiltrometer; Steep sloping land; Pressure head; Spatial structure.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300007
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The Mutagenesis of Lactobacillus Thermophilus for Enhanced L-(+)-Lactic Acid Accumulation Induced by Heavy Ion Irradiation BABT
Hu,Wei; Chen,Jihong; Wu,Qinghua; Li,Wenjian; Liu,Jing; Lu,Dong; Wang,Shuyang.
ABSTRACT Screening promising L. thermophiles with high productivity, high efficiency and strong adaptability are very important in lactic acid industry. For this purpose, 80MeV/u carbon ions were applied to irradiate L. thermophiles. After high-throughput screening, a mutant, named SRZ50, was obtained. Different carbon sources or nitrogen sources were provided to investigate carbon or nitrogen source utilization between mutant SRZ50 and wild type, and different fermentation periods were also chose to study fermentation characteristic between mutant SRZ50 and wild type. The results showed that mutant SRZ50 exhibited the enhanced L-(+)-lactic acid production from wild type. When glucose or fructose was the sole carbon source, the L(+)-lactic acid production...
Tipo: Info:eu-repo/semantics/article Palavras-chave: L. thermophilus; Mutant; Heavy ion irradiation; L-(+)-lactic acid production; Carbon source; Fermentation characteristic.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100504
Registros recuperados: 5
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