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| 1 | Regulatory role of DREB transcription factors in plant drought, salt and cold tolerance显示文摘rd29A gene of Arabidopsis encodes a LEA-like hydrophilic protein, its expression is induced by drought, high-salt and cold stress. In the promoter region of rd29A gene, there are 2 ORE cis-acting elements involved in responses to these environmental stresses. 5 cDNAs (DREB1A-C and DREB2A-B) encoding DREB transcription factors, which specifically bind to ORE element and control the expression of reporter gene under drought, high-salt and stress, have been isolated by One-Hybrid screening method and with ORE element of rd29A promoter. DREB transcription factors and ORE element function in signal transduction of drought, high-salt and cold stress. One DREB transcription factor can control the expression of several target functional genes involved in plant tolerance to drought, high-salt and cold stress. Thus, it may be an effective strategy to achieve ideal, multiple and fundamental effect for improving plant stress-resistance by DREB gene transfer. | K.Yamaguch-Shinozaki K.Shinozaki | 2000 | Chinese Science Bulletin2000，45，11： | 34 |
| 2 | 杨树叶中Na^+的积累与其耐盐能力的关系显示文摘以受体杨树品种‘107号’和转基因杨树‘18-1’的一年生枝条为材料,采用Hoagland营养液水培方法,检测二者植株生长以及根、茎、叶中Na+和K+含量变化的结果表明,在含100mmol·L-1NaCl的Hoagland营养液中,二者的生长速度都受到明显抑制,但后者的受抑程度较小;叶中Na+含量呈持续增加趋势,9d后其叶中的Na+含量显著高于前者。在二者叶片枯萎程度相同的情况下,‘18-1’叶中的Na+含量是‘107号’的1.6倍左右。在4mol·L-1NaCl溶液中,它们的表皮细胞死亡率分别为42%和97%。说明后者比前者有更高的耐盐能力。 | 杨迎霞 郏艳红 聂莉莉 张越 陈受宜 王景安 刘仲齐 | 2009 | 植物生理学通讯2009，45，11： | 4 |
| 3 | Tobacco two-component gene NTHK2显示文摘By using a previously isolated tobacco two-component gene NTHK1 as a probe, we screened a cDNA library and obtained a homologous gene designated NTHK2. Sequencing analysis revealed that NTHK2 encoded a putative ethylene receptor homolog and contained a histidine kinase domain and a receiver domain. In the histidine kinase domain, the histidine at the phosphorylation site was replaced by an asparagine. Southern analysis indicated that NTHK2 was present at low copies in tobacco genome. The expression of NTHK2 was studied using a competitive RT-PCR method. It was found that, in young flower buds, NTHK2 was expressed abundantly, while in other organs or tissues, it was expressed in a low level. When leaf was subjected to wounding (cutting) treatment, NTHK2 expression was increased. When tobacco seedlings were stressed with PEG and heat shock, NTHK2 transcription was also enhanced. Other treatments showed little effects. These results indicated that NTHK2 might be involved in the developmental processes and | ZHANG Jinsong XIE Can WU Xiaolei DU Baoxing CHEN Shouyi | 2001 | Chinese Science Bulletin2001，46，7： | 2 |
| 4 | Characterization of an ethylene receptor homolog gene from rice显示文摘Ethylene plays important roles in plant growth, development and stress responses. Its receptor genes have been studied in dicots such as Arabidopsis, tobacco and tomato. However, no research has been reported for the ethylene receptors from monocots currently. In the present study, we cloned an ethylene receptor gene OSPK2 from rice and found that its encoded protein was divergent from the ethylene receptors from dicots. OSPK2 had a long extension in its N- terminal, followed by three transmembrane segments, a GAF domain, a putative kinase domain and a putative receiver domain. Although most of the domains were conserved, the expected phosphorylation site His and the phosphate receiver Asp have been replaced by Gln and Asn, respectively. This fact indicates that OSPK2 may not function as a histidine kinase in a phosphorelay manner, but rather play roles by other mechanism, probably through Ser/Thr kinase activity. The expression of the OSPK2 gene was investigated by RT-PCR method under different conditions. We found that this gene was apparently induced by wounding and PEG treatment, but not significantly affected by salt and ABA treatments. The differential expression of the OSPK2 gene may reflect its roles in mediating different abiotic stress responses, consistent with our previous studies on tobacco ethylene receptors. | 曹宛虹 董亿 张劲松 陈受宜 | 2003 | Science China(Life Sciences)2003，46，4： | 2 |
| 5 | Cloning and expression of putative ethylene receptor genes in soybean plant显示文摘Ethylene plays important roles in plant growth, development, and stress responses, and ethylene receptors have been identified and studied extensively in various plant species. Here we report the cloning of four ethylene receptor genes from soybean, i.e. GmETR1, GmERS1, GmETR2 and GmEIN4. Construction of the phylogenic tree showed that GmETR1 and GmERS1 belong to subfamily I whereas GmETR2 and GmEIN4 belong to subfamily II. The four ethylene receptor genes showed different tissue-specific expression patterns in roots, stems, leaves, cotyledons, flowers, pods and seeds of soybean. These genes were differentially regulated by various abiotic stresses and plant hormones. The possible roles of the four genes in soybean plant were also discussed. | Xie Zongming Lei Gang Wuriyanghan Hada Tian Aiguo Zhang Jinsong Chen Shouyi | 2007 | Progress in Natural Science:Materials International2007，17，10： | 1 |
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