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| 1 | The Dominant Glutamic Acid Metabolic Flux to Produce γ-Amino Butyric Acid over Proline in Nicotiana tabacum Leaves under Water Stress Relates to its Significant Role in Antioxidant Activity显示文摘γ-Amino butyric acid (GABA) and proline play a crucial role in protecting plants during various environmental stresses. Their synthesis is from the common precursor glutamic acid, which is catalyzed by glutamate decarboxylase and △1-pyrroline-5-carboxylate synthetase respectively. However, the dominant pathway under water stress has not yet been established. To explore this, excised tobacco leaves were used to simulate a water-stress condition. The results showed GABA content was much higher than that of proline in leaves under water-deficit and non-water-deficit conditions. Specifically, the amount of GABA significantly increased compared to proline under continuous water loss for 16 h, indicating that GABA biosynthesis is the dominant pathway from glutamic acid metabolism under these conditions. Quantitative reverse transcription polymerase chain reaction and protein Western gel-blot analysis further confirmed this. To explore the function of GABA accumulation, a system producing superoxide anion (O 2 - ), peroxide hydrogen (H 2 O 2 ), and singlet oxygen ( 1 O 2 ) was employed to investigate the scavenging role on free-radical production. The results demonstrated that the scavenging ability of GABA for O 2 - , H 2 O 2 , and 1 O 2 was significantly higher than that of proline. This indicated that GABA acts as an effective osmolyte to reduce the production of reactive oxygen species under water stress. | Cuili Liu Li Zhao Guanghui Yu | 2011 | Journal of Integrative Plant Biology2011，53，8： | 27 |
| 2 | 铝胁迫对草本植物生理的影响机制显示文摘铝毒是酸性土壤地区影响草本植物生长的主要限制因子,全球性土壤酸化进一步加剧了铝胁迫对植物的危害。本文综述了铝胁迫对草本植物的农艺性状、光合呼吸作用、活性氧和抗氧化酶系统、渗透调节物质以及根系活动和次生代谢物的影响,简述了低浓度的铝对草本植物生长部分指标具有促进作用,主要阐述了铝胁迫对草本植物的各种危害:铝胁迫对其地上部分和地下部分具有毒害作用、迫使其叶绿素含量降低、气孔导度下降、呼吸作用受阻、活性氧浓度升高、抗氧化酶活性下降、渗透调节受破坏、根系活力下降并扰乱其次生代谢,并提出了缓解铝毒的方法和未来的研究方向。 | 黄玉婷 吴亚 刘大林 张卫红 | 2018 | 草业科学2018，35，6： | 20 |
| 3 | Nitric oxide alleviates aluminum-induced oxidative damage through regulating the ascorbateglutathione cycle in roots of wheat显示文摘The possible association with nitric oxide(NO) and ascorbate-glutathione(As A-GSH) cycle in regulating aluminum(Al) tolerance of wheat(Triticum aestivum L.) was investigated using two genotypes with different Al resistance. Exposure to Al inhibited root elongation, and triggered lipid peroxidation and oxidation of As A to dehydroascorbate and GSH to glutathione disulfide in wheat roots. Exogenous NO significantly increased endogenous NO levels, and subsequently alleviated Al-induced inhibition of root elongation and oxidation of As A and GSH to maintain the redox molecules in the reduced form in both wheat genotypes. Under Al stress, significantly increased activities and gene transcriptional levels of ascorbate peroxidase, glutathione reductase, and dehydroascorbate reductase,were observed in the root tips of the Al-tolerant genotype Jian-864. Nitric oxide application enhanced the activity and gene transcriptional level of these enzymes in both wheat genotypes. g-Glutamylcysteine synthetase was not significantly Researaffected by Al or NO, but NO treatments increased the activity of glutathione peroxidase and glutathione S-transferase to a greater extent than the Al-treated wheat seedlings. Proline was significantly decreased by Al, while it was not affected by NO.These results clearly suggest that NO protects wheat root against Al-induced oxidative stress, possibly through its regulation of the As A-GSH cycle. | Chengliang Sun Lijuan Liu Yan Yu Wenjing Liu Lingli Lu Chongwei Jin Xianyong Lin | 2015 | Journal of Integrative Plant Biology2015，57，6： | 10 |
| 4 | 铝胁迫对烟草叶片光能利用、光保护系统及活性氧代谢的影响显示文摘为了揭示烟草叶片光能利用和光保护系统在铝诱导的活性氧代谢中的作用机理,以2个不同耐铝性的烟草品种云烟100(耐铝)和云烟105(敏感)为材料,采用水培法研究了不同铝浓度(0,50,100,200μmol/L)对烟草植株生长、叶片活性氧含量、光合特性、叶绿素荧光参数、光呼吸、超氧化物歧化酶(SOD)和抗坏血酸过氧化物酶(APX)活性的影响。结果表明,铝浓度的升高显著降低了烟草叶片叶绿素含量、净光合速率(Pn)、最大光化学效率(Fv/Fm)、PSⅡ光合电子传递量子效率(ΦPSⅡ)和光化学猝灭系数(q P),提高了反应中心PSⅡ过剩激发能,从而导致叶片O_2-·和H2O_2含量升高,植株生物量下降,其中对云烟105影响大于云烟100。随铝处理浓度的升高,烟草叶片非光化学猝灭系数(NPQ)、光呼吸速率、SOD和APX活性呈先升后降的趋势。与敏感品种云烟105相比,耐铝品种云烟100在不同铝浓度胁迫下表现出更高的ΦPSⅡ、q P、NPQ、光呼吸速率以及SOD和APX活性,说明低浓度铝胁迫下烟草叶片可通过提高光化学反应能力、热耗散、光呼吸以及抗氧化酶活性等途径来降低反应中心PSⅡ过剩激发能,防止或清除活性氧的积累,从而增强其对铝的耐性。 | 刘强 胡萃 柳正葳 宋勇生 | 2017 | 华北农学报2017，32，1： | 8 |
| 5 | 铝胁迫对狗牙根根系生长和营养元素的影响显示文摘为了探究狗牙根(Cynodon dactylon(L.)Pers.)耐铝种质及敏铝种质根系生长和营养元素对铝胁迫的响应。本研究以狗牙根耐铝种质A22和敏铝种质A326作为试验材料,在500μM AlCl_(3)(pH值4.0)溶液中设计了3个处理时间(0 h,12 h,24 h),在24 h处理时间点设计了4个铝处理浓度,分别为0(CK),250,500,750μM AlCl_(3)(pH值4.0)。通过对相对根长、根系苏木精染色、根系铝含量和10种营养元素的测定,结果表明,在不同铝胁迫下,A22根系伸长受抑制的程度均小于A326;A326根系苏木精染色深于A22,且根系铝含量高于A22;营养元素P,Ca,Mg,K,Fe,Mn,Cu,Zn和B的含量在A22和A326中都受到了不同程度的抑制,且与两个种质中根系铝含量呈负相关。初步了解铝胁迫下狗牙根在营养生理上的耐铝机制,有利于在酸性土壤中更好地利用狗牙根,为培育耐酸铝的草品种提供初步的理论基础。 | 段宏利 蒋凌雁 陈志坚 黄春琼 | 2022 | 草地学报2022，30，4： | 7 |
| 6 | 铝胁迫对烟草叶片呼吸作用和活性氧代谢的影响显示文摘以2个不同耐铝性的烟草品种云烟100(耐铝)和云烟105(敏感)为材料,采用水培法研究不同铝浓度(0,50,100,200μmol/L)对烟草植株生长、叶片活性氧(ROS)含量、呼吸作用和线粒体抗氧化酶活性的影响。结果表明:随铝浓度的增加,烟草植株生物量显著下降,叶片O·-2和H2O2含量显著升高且敏感品种云烟105变幅更明显,表明烟草铝毒害与叶片ROS积累呈正相关。随铝浓度的增加,烟草叶片总呼吸、细胞色素呼吸和细胞色素氧化酶(COX)活性不断下降,而交替呼吸和丙酮酸含量先升后降,表明铝胁迫下烟草各呼吸途径的变化与COX活性受抑及丙酮酸对交替氧化酶活性的正向调控有关。铝胁迫下烟草叶片线粒体超氧化物歧化酶(SOD)和抗坏血酸过氧化物酶(APX)活性显著升高,有利于清除细胞内产生的ROS。与敏感品种云烟105相比,耐铝品种云烟100在不同铝浓度胁迫下均表现出更高的交替呼吸、总呼吸、线粒体SOD和APX活性,说明铝胁迫下烟草叶片保持较高的呼吸作用(尤其是交替呼吸)以及线粒体SOD和APX活性与其抗铝性密切相关。 | 刘强 柳正葳 贺根和 胡萃 | 2017 | 江西农业大学学报2017，39，1： | 7 |
| 7 | 铝胁迫对白苦瓜幼苗生长状况和生理特性的影响显示文摘为了探究铝胁迫下白苦瓜的生理变化机制,研究了不同浓度(50 mg/L、100 mg/L、250 mg/L、500mg/L、800 mg/L)的铝胁迫对白苦瓜幼苗生长状况和生理指标的影响。结果表明:50 mg/L的Al Cl3溶液胁迫20 d,并未对白苦瓜的幼苗产生显著的抑制作用。随着铝胁迫浓度的增大,铝胁迫对白苦瓜幼苗的抑制作用逐渐加大。在800 mg/L的铝胁迫下,白苦瓜幼苗受到显著抑制,其株高仅为对照的20.16%。相比于生理指标,白苦瓜幼苗的生长指标(株高和鲜重)对铝胁迫更为敏感。铝胁迫下,白苦瓜能够通过提高POD活性来抵抗铝胁迫所带来的危害。铝胁迫下,叶绿素含量和根系活力的下降是白苦瓜生长受到抑制的重要原因。 | 孟长军 | 2018 | 中国农业科技导报2018，20，8： | 6 |
| 8 | 60 Years of Development of the Journal of Integrative Plant Biology显示文摘In celebration of JIPB's 60 th anniversary,this paper summarizes and reviews the development process of the journal.To start,we offer our heartfelt thanks to JIPB's pioneer Editors-in-Chief who helped get the journal off the ground and make it successful.Academic achievement is the soul of academic journals,and this paper summarizes JIPB's course of academic development by analyzing it in four stages:the first two stages are mostly qualitative analyses,and the latter two stages are dedicated to quantitative analyses.Most-cited papers were statistically analyzed.Improvements in editing,publication,distribution and online accessibility-which are detailed in this paper-contribute to JIPB's sustainable development.In addition,JIPB's evaluation index and awards are provided with accompanying pictures.At the end of the paper,JIPB's milestones are listed chronologically.We believe that JIPB's development,from a national journal to an international one,parallels the development of the Chinese plant sciences. | Jinzhong Cui Ping He Fenghong Liu Jingjing Tan Lingfeng Chen Joshua Fenn | 2012 | Journal of Integrative Plant Biology2012，54，10： | 5 |
| 9 | 铝胁迫对葡萄苗铝吸收分配及抗氧化系统的影响显示文摘为了探明葡萄苗在不同浓度铝胁迫下树体的铝积累特征和生理响应,研究以‘水晶’葡萄为试材,在无土栽培条件下,用1.0~8.0 mmol·L^(-1) KAl(SO4)2处理60 d后测定树体铝含量及相关生理指标。结果表明,过量的铝在葡萄苗中的分配为细根>粗根>老叶>树皮>嫩叶>木质部>新枝,2.0 mmol·L^(-1)铝处理后植株生长旺盛,生物量最大,单株铝积累总量最高,5.0 mmol·L^(-1)铝处理后植株生长较弱,生物量较小,单株铝含量最低;铝浓度超过3.0 mmol·L^(-1)时显著降低葡萄苗叶绿素a、叶绿素b、叶绿素a+b的含量,铝浓度超过4.0 mmol·L^(-1)显著降低葡萄苗类胡萝卜素含量;随着铝浓度的增大,葡萄叶片和根系的脯氨酸含量逐渐升高且显著高于CK;铝浓度达到3.0mmol·L^(-1)时,各处理叶片和根系的丙二醛含量均显著高于CK;铝处理提高了葡萄叶片和根系中的氧自由基产生速率和过氧化氢含量;铝胁迫下,葡萄苗叶片和根系的POD活性高于CK;铝浓度低于4.0 mmol·L^(-1)时,SOD活性高于CK,而浓度达到4.0 mmol·L^(-1)时则显著低于CK。可见,低于3.0 mmol·L^(-1)铝对葡萄苗的伤害较小,甚至还能促进其生长,但超过3.0 mmol·L^(-1)铝将对葡萄苗造成不同程度的伤害。 | 张永福 居钱欢 李晨荣 罗伟 蒋淑萍 张燕萍 | 2018 | 安徽农业大学学报2018，45，2： | 3 |
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