植物生理与分子生物学学报最新文献_第7页

The co-localization and possible interactions of integrin-like protein and alpha-tubulin in the root cells of Zea mays. 整合素样蛋白和α -微管蛋白在玉米根细胞中的共定位及其可能的相互作用。

植物生理与分子生物学学报 Pub Date : 2007-04-01

Bing Lv, Feng Chen, Zhong-Hua Gong, Jian-Sheng Liang

{"title":"The co-localization and possible interactions of integrin-like protein and alpha-tubulin in the root cells of Zea mays.","authors":"Bing Lv, Feng Chen, Zhong-Hua Gong, Jian-Sheng Liang","doi":"","DOIUrl":"","url":null,"abstract":"Plant cell wall-plasma membrane-cytoskeleton (CW-PM-CSK) continuum plays important roles in the regulation of plant responses to environmental cues. It has been found in our previous study that an integrin-like protein identified in Arabidopsis and Zea mays plasma membrane mediates the interactions between cell wall and plasma membrane and cell responses to osmotic stress. In the present study, the co-localization of integrin-like protein and alpha-tubulin and their possible interactions were investigated in the root cells of maize using an indirect immunofluorescence technique combined with pharmacological approach. As compared with the control, after treatment with GRGDS, a synthetic peptide contained the RGD domain which binds specifically to integrin-like protein, the integrin-like protein was distributed more evenly over the plasma membrane and the density of alpha-tubulin array became lower. However, treatment with SDGRG, a GRGDS analog which does not contain the RGD domain, had no influences on them. Microtubule-depolymering or -stabilizing reagents exerted their effects either on the distribution over the plasma membrane or on the expression of integrin-like protein. The above results showed that the distribution of integrin-like protein on plasma membrane was closely linked to the alignment of microtubule arrays. Integrin-like protein mediates the interaction between cell wall and plasma membrane, and this interaction in return affected the alignment of microtubule arrays. Changes in cytoskeleton dynamics had significant effect on the distribution of integrin-like protein on the plasma membrane. These results strongly suggest that there are interactions between integrin-like protein and cytoskeleton in plant cells which are very complicated. It is worthy of extensive study to work out the mechanisms of plant responses to intracellular and extracellular signals.","PeriodicalId":64030,"journal":{"name":"植物生理与分子生物学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26682270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Analysis of nonenzymic source of superoxide anion in pathogenic Xanthomonas oryzae pv. oryzae]. 致病水稻黄单胞菌超氧阴离子非酶源分析。oryzae]。

植物生理与分子生物学学报 Pub Date : 2007-04-01

Xin Li, Hong-Yu Li, Han-Qing Feng, Jin-Sheng Wang

引用次数: 0

Starch accumulation and activities of key enzymes involved in starch synthesis in the grains of maize inbred lines with different starch contents. 不同淀粉含量玉米自交系籽粒淀粉积累及淀粉合成关键酶活性的研究

植物生理与分子生物学学报 Pub Date : 2007-04-01

Jun-Jie Zhang, Yu-Feng Hu, Hui Zhou, Yu-Bi Huang

{"title":"Starch accumulation and activities of key enzymes involved in starch synthesis in the grains of maize inbred lines with different starch contents.","authors":"Jun-Jie Zhang, Yu-Feng Hu, Hui Zhou, Yu-Bi Huang","doi":"","DOIUrl":"","url":null,"abstract":"Amylose, amylopectin and starch dynamic accumulation and key enzymes activities in the grains of 4 maize inbred lines (two high-starch ones and two low-starch ones) were studied. The amounts of amylose, amylopectin and starch in the grains of 4 maize inbred lines increased as sigmoid curves during grain filling period. The changes in amylose, amylopectin and starch accumulation rates followed single-peaked curves, and reached their peaks in the 25-30 days after pollination (DAP). Changes in activities of adenosine diphosphoglucose pyrophosphorylase (ADPG-PPase, EC 2.7.7.27), soluble starch synthase (SSS, EC 2.4.1.21) and starch granule-bound synthase (GBSS, EC 2.4.1.21) in the grains of 4 inbred lines appeared single-peaked curves with the peaks appearing 20-30 DAP. Changes in activities of starch-branching enzyme (Q-enzyme, EC 2.4.1.18) in the grains of high-starch inbred lines appeared single-peaked curves with the peak values at 20 DAP, while the two low-starch inbred lines showed double-peaked curves with the peak values in the 15-20 DAP and 30-35 DAP. There was significant correlation between ADPG-PPase, SSS and GBSS activities. The results indicated that the Q-enzyme had different expression in high- and low-starch maize inbred lines, and verified that ADPG-PPase, SSS and GBSS activities were significantly and positively correlated with amylose, amylopectin and starch accumulation rates.","PeriodicalId":64030,"journal":{"name":"植物生理与分子生物学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26682271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in alpha-L-arabinofuranosidase activity in peel and pulp of banana (Musa sp.) fruits during ripening and softening. 香蕉果实成熟和软化过程中果皮和果肉α - l -阿拉伯糖醛酸苷酶活性的变化

植物生理与分子生物学学报 Pub Date : 2007-04-01

Jun-Ping Zhuang, Jing Su, Xue-Ping Li, Wei-Xin Chen

{"title":"Changes in alpha-L-arabinofuranosidase activity in peel and pulp of banana (Musa sp.) fruits during ripening and softening.","authors":"Jun-Ping Zhuang, Jing Su, Xue-Ping Li, Wei-Xin Chen","doi":"","DOIUrl":"","url":null,"abstract":"Arabinose is one of the most dynamic cell wall glycosyl residues released during fruit ripening, alpha-L-arabinofuranosidase (alpha-Arab) are major glycosidases that may remove arabinose units from fruit cell wall polysaccharides. To find out whether alpha-Arab plays important roles in banana fruit softening, the enzyme activities in peel and pulp, fruit firmness, respiration rate and ethylene release rate were assayed during banana softening. The results showed that alpha-Arab activities in banana pulp and peel increased slightly at the beginning of storage and reached their maxima when the fruit firmness decreased drastically, alpha-Arab activity increased by more than ten folds in both pulp and peel during ripening and alpha-Arab activities were higher in pulp than in peel. Treatment of banana fruits with ethylene absorbent postponed the time of reaching of its maxima of respiration and ethylene, enhanced the firmness of pup and decreased alpha-Arab activity in the peel and pulp. These results suggest that alpha-Arab induced the decrease of fruit firmness and played an important role in banana fruit softening, and its activity was regulated by ethylene.","PeriodicalId":64030,"journal":{"name":"植物生理与分子生物学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26682272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Function of the putative Na+/H+ antiporter gene PeNhaD1 from salt-resistant Populus euphratica Oliv]. [耐盐胡杨Na+/H+反向转运基因PeNhaD1的功能]。

植物生理与分子生物学学报 Pub Date : 2007-04-01

Ping-Ping Lv, Jun Hu, Shao-Liang Chen, Xin Shen, Wei-Bo Yin, Yu-Hong Chen, Yong-Ru Sun, Zan-Min Hu

引用次数: 0

Salt and drought tolerance of transgenic salvia miltiorrhiza Bunge with the TaLEA1 gene. 转TaLEA1基因丹参的耐盐性和耐旱性。

植物生理与分子生物学学报 Pub Date : 2007-04-01

Li-Min Han, Jia-Ning Yu, Wen-Feng Ju

引用次数: 0

[Dehydration-induced intracellular solute changes and acquisition of plant desiccation tolerance]. [脱水诱导的细胞内溶质变化和植物干燥耐受性的获得]。

植物生理与分子生物学学报 Pub Date : 2007-02-01

Ming Zhang, Yun Lu, Xiao-Feng Wang

引用次数: 0

Comparison of starch synthesis and related enzyme activities in developing grains among different types of maize. 不同类型玉米籽粒发育中淀粉合成及相关酶活性的比较。

植物生理与分子生物学学报 Pub Date : 2007-02-01

Hai-Yan Zhang, Shu-Ting Dong, Rong-Qi Gao, Yu-Quan Li

{"title":"Comparison of starch synthesis and related enzyme activities in developing grains among different types of maize.","authors":"Hai-Yan Zhang, Shu-Ting Dong, Rong-Qi Gao, Yu-Quan Li","doi":"","DOIUrl":"","url":null,"abstract":"The relationships between the rates of starch synthesis and the activities of enzymes responsible for starch biosynthesis in developing grains of normal, pop, sweet and waxy corns were investigated and compared throughout the grain filling period. The results indicated that the rates of starch synthesis and the activities of sucrose synthase (SS), soluble starch synthase (SSS), granule-bound starch synthase (GBSS), starch-branching enzyme (SBE) and starch-debranching enzyme (DBE) each exhibited a single peak during grain filling period. Normal corn showed significantly higher SS activity than other genotypes between 30 and 40 DAP. The mean and maximum activities of SSS were in the following order: normal corn>waxy corn>pop corn>sweet corn. GBSS activities were significantly higher in normal corn, and significantly lower in waxy corn at late filling period. SBE activity of waxy corn was significantly higher than other lines after 10 DAP. DBE activity of sweet corn was extremely low and completely lost at 40 DAP. The rates of starch synthesis had some correlation with the activities of SS, SSS, GBSS and SBE during the grain filling process. No correlation was found between the rates of starch synthesis and the activities of ADP-glucose pyrophosphorylase (AGPase) and DBE. SS activity appears to play a major role in starch biosynthesis in maize. GBSS is responsible for amylose synthesis especially in the later period. SSS and SBE are associated with amylopectin biosynthesis.","PeriodicalId":64030,"journal":{"name":"植物生理与分子生物学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26542409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stimulatory effect of phytosulfokine-alpha on the proliferation of tobacco 'Bright Yellow 2' suspension cells. 植物硫化碱-α对烟草'亮黄 2 号'悬浮细胞增殖的刺激作用

植物生理与分子生物学学报 Pub Date : 2007-02-01

Jun-Ying Chen, Yan-Hui Yang, Hai-Xia Xu, Xi-Yong Cheng, Xin-Jian Chen

引用次数: 0

Effects of iron deficiency on photosynthesis and photosystem II function in soybean leaf. 缺铁对大豆叶片光合作用和光合系统 II 功能的影响

植物生理与分子生物学学报 Pub Date : 2007-02-01

Chuang-Dao Jiang, Hui-Yuan Gao, Qi Zou, Lei Shi

{"title":"Effects of iron deficiency on photosynthesis and photosystem II function in soybean leaf.","authors":"Chuang-Dao Jiang, Hui-Yuan Gao, Qi Zou, Lei Shi","doi":"","DOIUrl":"","url":null,"abstract":"Gas exchange and chlorophyll a fluorescence in soybean plants were investigated to explore the effects of iron deficiency on photosynthesis and photosystem II function in vivo. Iron deficiency induced a drastic decrease in net photosynthesis (Pn). Compared with normal plants, the maximal quantum yield of PSII photochemistry (psipo) in iron-deficient plants was only slightly lower; whereas, the efficiency with which a trapped exciton can move an electron into the electron transport chain further than QA-(Psio) and quantum yield of electron transport beyond QA (psiEo) were significantly depressed. Iron deficiency also caused a clear enhancement of the relative variable fluorescence at K step (VK). When exposed to light, iron-deficient plants had considerably lower efficiency of excitation energy capture by open PSII reaction centers (Fv'/Fm'), quantum yield of PSII electron transport (PhiPSII), and photochemical quenching coefficient (qP), but markedly higher non-photochemical quenching (NPQ). In addition, post-illumination transient increase in chlorophyll fluorescence was clearly enhanced in iron-deficient plants. Basing on these data, we suggest that both the donor and the acceptor sides of PSII complex were damaged by iron deficiency; cyclic electron transport around PSI in iron-deficient soybean plants might play an important role in inducing the excitation energy dissipation and meeting the demand for extra ATP as a compensation for the loss of phosphorylation capability.","PeriodicalId":64030,"journal":{"name":"植物生理与分子生物学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26542281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0