Hao Ma

Xinjiang Agricultural University, 新阳, Shaanxi, China

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Publications (18)34.54 Total impact

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    ABSTRACT: As a large family of regulatory proteins, NAC (for NAM, ATAF1,2 and CUC2) proteins play important roles in various plant developmental processes and response to environmental stresses. Several studies have investigated the role of NAC transcription factors during these processes. In the present study, a gene encoding a NAC protein from chickpea (Cicer arietinum L.), CarNAC2, which encodes a putative protein of 191 amino acids, was isolated and characterized. Analyses of mRNA levels revealed that the expression of CarNAC2 was up-regulated by drought and ABA (abscisic acid). CarNAC2::GFP fusion protein was localized in the nucleus. Yeast one-hybrid assay showed that CarNAC2 possesses transcriptional activation activity which was located in the C-terminal region. Overexpression of CarNAC2 enhanced drought tolerance in transgenic Arabidopsis plants. In addition, transgenic plant overexpressing CarNAC2 displayed lower germination vigor and later blooming than wild type plants. Overall, our findings suggest that CarNAC2 protein as a transcriptional activator is involved in response to drought stress and various developmental processes in chickpea.
    Journal of Plant Biology 02/2014; 57(1). · 0.99 Impact Factor
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    EuPA Open Proteomics. 01/2014;
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    ABSTRACT: Haloxylon ammodendron (Chenopodiaceae) is a dominant shrubby or sub-arboreal perennial. During the torrid and arid summer, annual assimilative branches of H. ammodendron are often observed slow growing (even ceasing growth) and gradually turning in color from green to brilliant yellow, even with some drying up and falling off. The pivotal factor causing this phenomenon is still unknown. Here we report that it is the high desert surface layer (0–5 cm) temperature (DSLT) that causes H. ammodendron plants to display this phenomenon. Damage is caused by high DSLT around the stem basal part of H. ammodendron plants, with stress threshold value being 55 °C. Based on the color changes of the annual assimilative branches, damage responses of H. ammodendron could be broadly divided into three degrees of mild, moderate and high damage that visually can be detected. DSLT stress also destroys the redox homeostasis in H. ammodendron plants, bringing about physiological damages. Since high DSLT is one of the inherent factors of desert habitat conditions, our results suggest that it will have importance to investigate the direct effect of high DSLT stress also on other desert plants.
    Flora - Morphology Distribution Functional Ecology of Plants 08/2012; 207(8):572–580. · 1.72 Impact Factor
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    ABSTRACT: Chickpea (Cicer arietinum L.) is an important pulse crop grown mainly in the arid and semi-arid regions of the world. Due to its taxonomic proximity with the model legume Medicago truncatula and its ability to grow in arid soil, chickpea has its unique advantage to understand how plant responds to drought stress. In this study, an oligonucleotide microarray was used for analyzing the transcriptomic profiles of unigenes in leaf and root of chickpea seedling under drought stress, respectively. Microarray data showed that 4,815 differentially expressed unigenes were either ≥ 2-fold up- or ≤ 0.5-fold down-regulated in at least one of the five time points during drought stress. 2,623 and 3,969 unigenes were time-dependent differentially expressed in root and leaf, respectively. 110 pathways in two tissues were found to respond to drought stress. Compared to control, 88 and 52 unigenes were expressed only in drought-stressed root and leaf, respectively, while nine unigenes were expressed in both the tissues. 1,922 function-unknown unigenes were found to be remarkably regulated by drought stress. The expression profiles of these time-dependent differentially expressed unigenes were useful in furthering our knowledge of molecular mechanism of plant in response to drought stress.
    Molecular Biology Reports 05/2012; 39(8):8147-58. · 2.51 Impact Factor
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    ABSTRACT: High temperature and humidity (HTH) stress during soybean seed development and maturity in the field easily leads seed to pre-harvest deterioration. However, how proteins and their involved pathways in developing soybean seed systematically cause deterioration is still not largely understood. To reveal it, we compared the proteome composition of developing seed (R(7) period) of a pre-harvest seed deterioration sensitive soybean cultivar at different HTH stress time points (24, 96 and 168 h) with their corresponding controls by 2-DE. 42 protein spots were found to be differentially expressed and successfully identified by MALDI-TOF MS to match 31 diverse protein species. These proteins were involved in 13 cellular responses and metabolic processes including carbohydrate metabolism, signal transduction, protein biosynthesis, photosynthesis, protein folding and assembly, energy pathway, cell rescue and defense, cell cycle, nitrogen metabolism, lipid metabolism, amino acid metabolism, transcription regulation, and secondary metabolite biosynthesis. Based on these proteins' functions and involved pathways, together with ultrastructural, physical and chemical, and metabolomic data, a pre-harvest seed deterioration mechanism was proposed. Such a mechanism allows us to further understand the possible management strategy of cellular activities occurring in the HTH-stressed developing seeds and provides new insights into the HTH stress responses in crop developing seeds.
    Journal of proteomics 01/2012; 75(7):2109-27. · 5.07 Impact Factor
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    ABSTRACT: Salinity is one of the major environmental constraints limiting yield of crop plants in many semi-arid and arid regions around the world. To understand responses in soybean seedling to salt stress at proteomic level, the extracted proteins from seedling leaves of salt-sensitive genotype Jackson and salt-tolerant genotype Lee 68 under 150 mM NaCl stress for 1, 12, 72 and 144 h, respectively, were analyzed by 2-DE. Approximately 800 protein spots were detected on 2-DE gels. Among them, 91 were found to be differently expressed, with 78 being successfully identified by MALDI-TOF-TOF. The identified proteins were involved in 14 metabolic pathways and cellular processes. Based on most of the 78 salt-responsive proteins, a salt stress-responsive protein network was proposed. This network consisted of several functional components, including balancing between ROS production and scavenging, accelerated proteolysis and reduced biosynthesis of proteins, impaired photosynthesis, abundant energy supply and enhanced biosynthesis of ethylene. Salt-tolerant genotype Lee 68 possessed the ability of higher ROS scavenging, more abundant energy supply and ethylene production, and stronger photosynthesis than salt-sensitive genotype Jackson under salt stress, which may be the major reasons why it is more salt-tolerant than Jackson.
    Journal of proteomics 12/2011; 75(5):1529-46. · 5.07 Impact Factor
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    ABSTRACT: Late-embryogenesis abundant (LEA) proteins have been reported to be closely correlated with the acquisition of desiccation tolerance during seed development and response of plant to drought, salinity, and freezing, etc. In this study, a LEA gene, CarLEA4 (GenBank accession no. GU247511), was isolated from chickpea based on a cDNA library constructed with chickpea seedling leaves treated by polyethylene glycol (PEG). CarLEA4 contained two exons and one intron within genomic DNA sequence and encoded a putative polypeptide of 152 amino acids. CarLEA4 had a conserved pfam domain, and showed high similarity to the group 4 LEA proteins in secondary structure. It was localized in the nucleus. The transcripts of CarLEA4 were detected in many chickpea organs including seedling leaves, stems, roots, flowers, young pods, and young seeds. CarLEA4 was inhibited by leaf age and showed expression changes in expression during seed development, pod development and germination. Furthermore, the expression of CarLEA4 was strongly induced by drought, salt, heat, cold, ABA, IAA, GA(3) and MeJA. Our results suggest that CarLEA4 encodes a protein of LEA group 4 and may be involved in various plant developmental processes and abiotic stress responses.
    Molecular Biology Reports 07/2011; 39(4):3565-72. · 2.51 Impact Factor
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    ABSTRACT: F-box protein family has been found to play important roles in plant development and abiotic stress responses via the ubiquitin pathway. In this study, an F-box gene CarF-box1 (for Cicer arietinum F-box gene 1, Genbank accession no. GU247510) was isolated based on a cDNA library constructed with chickpea seedling leaves treated by polyethylene glycol. CarF-box1 encoded a putative protein with 345 amino acids and contained no intron within genomic DNA sequence. CarF-box1 is a KFB-type F-box protein, having a conserved F-box domain in the N-terminus and a Kelch repeat domain in the C-terminus. CarF-box1 was localized in the nucleus. CarF-box1 exhibited organ-specific expression and showed different expression patterns during seed development and germination processes, especially strongly expressed in the blooming flowers. In the leaves, CarF-box1 could be significantly induced by drought stress and slightly induced by IAA treatment, while in the roots, CarF-box1 could be strongly induced by drought, salinity and methyl jasmonate stresses. Our results suggest that CarF-box1 encodes an F-box protein and may be involved in various plant developmental processes and abiotic stress responses.
    Molecular Biology Reports 06/2011; 39(3):2337-45. · 2.51 Impact Factor
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    ABSTRACT: The subunit, amino acid composition and in vitro digestibility of the two protein isolates (GCPI and ZCPI) from one kabuli and one desi chickpea cultivars, grown extensively in Xinjiang Autonomous Region of China, were investigated and compared with those of soy protein isolate (SPI). SDS–PAGE showed that GCPI and ZCPI had almost the same band components under the reduced and unreduced conditions, with only minor difference in relative quantity for some bands, but different from that of SPI. The sulphur-containing amino acids were the first limiting amino acids for all three protein isolates of GCPI (2.11g/100g), ZCPI (2.20g/100g) and SPI (1.99g/100g). Amino acid score of the three protein isolates could reach the FAO/WHO requirement (1990) for the essential amino acids for preschool children. The order of in vitro digestibility was GCPI (87.47%)>ZCPI (80.82%)>SPI (71.04%). Our results indicated that, compared with soybean protein isolate, Chinese kabuli and desi chickpea protein isolates had higher digestibility value, and chickpea protein, especially for kabuli protein, could be utilized as a good source of protein for human nutrition.
    Food Research International - FOOD RES INT. 01/2010; 43(2):567-572.
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    ABSTRACT: The physicochemical and functional properties of protein isolates from two Chinese chickpea cultivars were investigated and compared with those of SPI. GCPI has the lightest, reddest, most yellow and highest chroma. SHF and Ho of three protein isolates were significantly different (P < 0.05). Significant differences (P < 0.05) in EAI, FC, FS and LGC were observed between the two chickpea protein isolates, whose most functional properties were inferior to those of SPI. Most textural properties of heated gels from two chickpea protein isolates were similar and were also inferior to those of the SPI heated gel.PRACTICAL APPLICATIONSChickpea is the third most widely grown grain legume crop in the world after bean and soybean. In the present study, we examined the physicochemical properties (chemical composition, color characteristics, SHF content and Ho) and functional properties (nitrogen solubility, emulsifying properties, WHC and OHC, FC and FS, and gelation properties) of protein isolates derived from Desi and Kabuli chickpea cultivars grown in Xinjiang Autonomous Region in China, and compared them with those of SPI. This study would be useful in the comprehensive understanding of the characteristics of chickpea protein and its use as a potential additive for food and dietary items.
    Journal of Food Processing and Preservation 12/2009; 34(4):575 - 594. · 0.45 Impact Factor
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    ABSTRACT: Actins are ubiquitous and highly conserved proteins that play key roles in cell formation and cellular activities. In this study, an actin gene was isolated from chickpea for the first time and designated as CarACT1 (for Cicer arietinum L. actin gene 1; Genbank accession no. EU529707). It encoded a putative protein with 377 amino acids and contained five exons and four introns within genomic DNA sequence. CarACT1 was localized in cytoplasm and showed high similarity to other well known actins from various species. Reverse transcription-polymerase chain reaction (RT-PCR) assay proved that CarACT1 transcripts were ubiquitously accumulated in all major organs, such as seedling roots, stems, leaves, flowers, young pods, and seeds, as well as in diverse developmental stages, such as leaf senescence, seed development and germination. Our results suggested that CarACT1 is an actin gene with physiological functions and may be served as a potential reference gene for transcription level of interesting genes in chickpea.
    Molecular Biology Reports 09/2009; 37(2):1081-8. · 2.51 Impact Factor
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    ABSTRACT: It has been documented that the plant-specific NAC (for NAM, ATAF1,2 and CUC2) transcription factors play an important role in plant development and stress responses. In this study, a chickpea NAC gene CarNAC5 (for Cicer arietinum L. NAC gene 5) was isolated from a cDNA library from chickpea leaves treated by polyethylene glycol (PEG). CarNAC5, as a single/low copy gene, contained three exons and two introns within genomic DNA sequence and encoded a polypeptide with 291 amino acids. CarNAC5 protein had a conserved NAC domain in the N-terminus and showed high similarity to other NACs, especially ATAF subgroup members. The CarNAC5:GFP fusion protein was localized in the nucleus of onion epidermal cells. Furthermore, CarNAC5 protein activated the reporter genes LacZ and HIS3 in yeast. The transactivation activity was mapped to the C-terminal region. The transcripts of CarNAC5 appeared in many chickpea tissues including seedling leaves, stems, roots, flowers, seeds and pods, but mostly accumulated in flowers. Meanwhile, CarNAC5 was strongly expressed during seed maturation and in embryos of the early germinating seeds. It was also significantly induced by drought, heat, wounding, salicylic acid (SA), and indole-3-acetic acid (IAA) treatments. Our results suggest that CarNAC5 encodes a novel NAC-domain protein and acts as a transcriptional activator involved in plant developmental regulation and various stress responses.
    Plant Physiology and Biochemistry 09/2009; 47(11-12):1037-45. · 2.78 Impact Factor
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    ABSTRACT: The plant-specific NAC (for NAM, ATAF1,2 and CUC2) proteins have been found to play important roles in plant development and stress responses. In this study, a NAC gene CarNAC1 (for Cicer arietinum L. NAC gene 1) was isolated from a cDNA library constructed with chickpea seedling leaves treated by polyethylene glycol. CarNAC1 encoded a putative protein with 239 amino acids and contained 3 exons and 2 introns within genomic DNA sequence. CarNAC1 had a conserved NAC domain in the N-terminus and the CarNAC1:GFP (green fluorescent protein) fusion protein was localized in the nucleus of onion epidermal cells. Additionally, CarNAC1 exhibited the trans-activation activity which was mapped to the C-terminus. The CarNAC1 transcript was detected in many chickpea organs including seedling leaves, stems, roots, flowers, and young pods, but less accumulated in young seeds. CarNAC1 was induced by leaf age and showed changes in expression during seed development and germination. Furthermore, the expression of CarNAC1 was strongly induced by drought, salt, cold, wounding, H(2)O(2), ethephon, salicylic acid, indole-3-acetic acid, and gibberellin. Our results suggest that CarNAC1 encodes a novel NAC-domain protein and may be a transcriptional activator involved in plant development and various stress responses.
    Molecular Biotechnology 09/2009; 44(1):30-40. · 2.26 Impact Factor
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    ABSTRACT: NAC transcription factors have been found to play important roles in plant development and responses to environmental stresses. Based on two cDNA libraries constructed from the PEG-treated and -nontreated seedling leaves of chickpea, a NAC gene, CarNAC3, was isolated and characterized. The results indicated that CarNAC3 contained 285 amino acids and had a conserved NAC domain. It was localized in the nucleus and possessed trans-activation activity in the C-terminus. Phylogenetic analysis showed that CarNAC3 belonged to the NAP (NAC-like, activated by APETALA3/PISTILLATA) subgroup of the NAC protein family. CarNAC3 exhibited organ-specific expression and its induction was strongly dependent on leaf age. CarNAC3 showed differential expression patterns during seed development and germination, and could be significantly induced by drought stress, abscisic acid (ABA), ethephon (Et) and indole-3-acetic acid (IAA), but was inhibited by N-6-benzyl-adenine (6-BA). Our data suggest that CarNAC3 may be a transcriptional activator involved in drought stress response and various developmental processes.
    Journal of plant physiology 08/2009; 166(17):1934-45. · 2.50 Impact Factor
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    ABSTRACT: A proteinaceous alpha-amylase inhibitor (CLAI) was purified from Cicer arietinum seeds. It had a molecular mass of 25.947 kDa and inhibited alpha-amylases from plants and mammals. Analysis of the amino acid sequence of a polypeptide from CLAI showed that it was different from other known alpha-amylase inhibitors, but had high identity to legumins from Cicer arietinum (100%) and Vicia faba var. minor (90%).
    Bioscience Biotechnology and Biochemistry 06/2009; 73(5):1200-2. · 1.27 Impact Factor
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    ABSTRACT: Chickpea (Cicer arietinum L.) is an important pulse crop grown mainly in the arid and semi-arid regions. To identify the water-stress-induced genes, two non-normalized cDNA libraries were constructed from the seedling leaves of a drought-tolerant chickpea cultivar under PEG-treated and -nontreated conditions. About 2500 clones from each library were selected randomly for sequencing analysis. Based on IDEG6 online software analysis, 92 genes were differentially expressed, and these genes were involved in diverse biological progresses, such as metabolism, transcription, signal transduction, protein synthesis and others. Most of the up-regulated genes were related to drought tolerance, and the down-regulated genes were mainly involved in photosynthesis. The differential expression patterns of five functional unigenes were confirmed by quantitative real-time PCR (qPCR). The results will help in understanding the molecular basis of drought tolerance in chickpea.
    Biochemical and Biophysical Research Communications 11/2008; · 2.41 Impact Factor
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    ABSTRACT: Soybeans were stored under 88% relative humidity at 30 °C (adverse condition) for 8 months, under 55% relative humidity at 20 °C (mild condition), cold condition (4 °C), and an uncontrolled ambient garage for 12 months, respectively. Protein isolates were prepared from the soybeans stored under various conditions and periods, and their functional properties were characterized. The protein subunits of the isolates prepared under the adverse conditions were degraded slightly after 3 months, degraded significantly after 6 months, and almost all subunits were degraded completely after 8 months; the relative contents of the protein subunits markedly decreased at the 7th or 8th month and some even approached zero. The relative contents of the 7S and 11S fractions began to decrease markedly at the 5th or 6th month, and the 11S/7S ratios seemed to decrease after the initial 6 months, and then increased at the 7th and 8th month. The nitrogen solubility index (NSI), protein disperse index (PDI), emulsifying activity, emulsifying stability, texture index and thermal stability of soybean protein isolates decreased following the degradation of subunits. The functional properties of protein isolates prepared from the other three conditions (mild, cold and ambient) showed almost no significant changes for 12 months of storage when compared with those of the control.
    Food Chemistry. 01/2008;
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    ABSTRACT: A new method was developed for extraction and isolation of 7S and 11S fractions from soybean seed, based on methods of Nagano et al., Thanh and Shibasaki [Nagano, T., Hirotsuka, M., & Mori, H. (1992). Dynamic viscoelastic study on the gelation of 7S globulin from soybeans. Journal of Agricultural and food chemistry 40, 941–944 and Thanh, V. H., & Shibasaki, K. (1976). Major proteins of soybean seeds. A straightforward fraction and their characterization. Journal of Agricultural and Food Chemistry 24, 1117–1121]. Optimization of the extraction and isolation of 11S and 7S globulins from soybean seed was investigated under various conditions by the Kjeldahl method and SDS-PAGE. The optimal conditions were as follows: 0.03–0.06 M Tris–HCl buffer (pH 8.5) containing 0.01 M sodium bisulfite as extract solution, extraction twice at 45 °C for 1 h, and with a 1:15 ratio (w/v) of flour:Tris–HCl. The 11S fraction was precipitated at pH 6.4, and the supernatant, after centrifugation, was adjusted to pH 5.5 to remove the insoluble intermediate fraction by further centrifugation. The supernatant obtained was then adjusted to pH 4.8 to afford the 7S fraction as a precipitate by centrifugation. With the improvements, the protein contents and purities of the isolated 11S and 7S fractions were significantly increased. The contents of all subunits of the isolated 11S and 7S fraction were markedly higher than those by Thanh and Shibasaki method, while the contents of α, β and B3 were also significantly higher than those by Nagano et al. method.
    Food Chemistry. 102(4):1310–1316.

Publication Stats

95 Citations
34.54 Total Impact Points

Institutions

  • 2014
    • Xinjiang Agricultural University
      新阳, Shaanxi, China
  • 2008–2014
    • Nanjing Agricultural University
      • State Key Laboratory of Crop Genetics and Germplasm Enhancement
      Nan-ching, Jiangsu Sheng, China