检索结果-南通市图书馆

Tease out the future: How tea research might enable crop breeding for acid soil tolerance

Plant Communications 2021年第3期2卷 27-37页

作者： Zhong Jie Ding Yuan Zhi Shi Gui Xin Li Nicholas P.Harberd Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Tea Research Institute Chinese Academy of Agriculture SciencesKey Laboratory for Tea Plant Biology and Resource UtilizationMinistry of Agriculture and Rural AffairsHangzhou 310008China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Department of Plant Sciences University of OxfordOxford OX13RBUK

Unlike most crops,in which soil acidity severely limits productivity,tea(Camellia sinensis)actually prefers acid soils(pH 4.0–5.5).Specifically,tea is very tolerant of acidity-promoted aluminum(Al)toxicity,a major factor that limits the yield of most other crops,and it even requires Al for optimum growth.Understanding tea Al tolerance and Al-stimulatory mechanisms could therefore be fundamental for the future development of crops adapted to acid soils.Here,we summarize the Al-tolerance mechanisms of tea plants,propose possible mechanistic explanations for the stimulation of tea growth by Al based on recent research,and put forward ideas for future crop breeding for acid soils.

关键词： aluminum acid soil tea Camellia sinensis breeding

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparison of Highly-Weathered acid soil CEC Determined by NH4OAc (pH = 7.0) Exchange Method and BaCl2-MgSO4Forced-Exchange Method

引用

Agricultural Sciences 2021年第9期12卷 917-927页

作者： Xiangzheng Kong Decheng Li Xiaodong Song Ganlin Zhang State Key Laboratory of soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing China University of Chinese Academy of Sciences Beijing China

Cation exchange capacity (CEC) is one of the most important properties of soils. The NH4OAc (pH = 7.0) exchange method is usually recommended to determine CEC (CEC1) of all soils with different pH values, particularly for studies on soil taxonomy. But comparatively the BaCl2-MgSO4 forced-exchange method is more authentic in determining CEC (CEC2) of tropical and subtropical highly-weathered acid soils. But so far little is known about the difference between CEC1 and CEC2. In this study, the physiochemical data of 114 acid B horizon soils from 112 soil series of tropical and subtropical China were used, CEC1 and CEC2 were determined and compared, the influencing factors were analyzed for the difference between CEC1 and CEC2, and then a regression model was established between CEC1 and CEC2. The results showed that CEC2 was significantly lower than CEC1 (p 2 was 14.76% - 63.31% with a mean of 36.32% of CEC1. In view of the contribution to CEC from other properties, CEC2 was mainly determined by pH (45.92%), followed by silt (21.05%), free Fe2O3 (17.35%) and clay contents (12.76%), CEC1 was mainly decided by free Fe2O3 content (40.38%), followed by pH (28.39%) and silt content (27.29%;and the difference between CEC1 and CEC2 was mainly affected by free Fe2O3 (50.92%), followed by silt content (26.46%) and pH (21.80%). The acceptable optimal regression model between CEC2 and CEC1 was established as CEC2 = 2.3114 × CEC11.1496 (R2 = 0.410, P soil taxonomy, the BaCl2-MgSO4 forced-exchange method is recommended in determining CEC of the highly-weathered acid soils in the tropical and subtro

关键词： acid soil CEC Determination NH4OAc (pH = 7.0) Exchange Method BaCl2-MgSO4 Forced-Exchange Method

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Amelioration of acidic soil using fy Ash for Mine Revegetation in PostMining Land

引用

International Journal of Coal Science & Technology 2022年第3期9卷 201-206页

作者： Akihiro Hamanaka Takashi Sasaoka Hideki Shimada Shinji Matsumoto Department of Earth Resources Engineering Faculty of EngineeringKyushu University819-0395 FukuokaJapan Geological Survey of Japan National Institute of Advanced Industrial Science and Technology(AIST)305-8567 TsukubaJapan

This paper described the use of fy ash for soil amelioration of acidic soils to promote plant growth.In mining sites,acid sulfate soils/rocks,which contain sulfde minerals(e.***.pyrite FeS_(2)),have appeared as a result of overburden excavation.The excessively acidic condition inhibits plant growth due to the dissolution of harmful elements,such as Al,Fe,and Mn.Fly ash,an alkaline byproduct of coal combustion generated in thermal power plants is expected to be adopted to ameliorate acidic soils.However,the mixing ratio of fy ash must be considered because excessive addition of fy ash can have a negative impact on plant growth due to its physical/chemical properties.The pot trials using Acacia mangium demonstrate the evolution of plant growth with a 5%–10%addition of fy ash into acidic soil.When the acidic soil has a high potential for metal dissolution,the metal ions leached from the acidic soil are large,making it difcult to improve plant growth due to osmotic and ionic stress.This work suggests that the efects of fy ash on metal ions leached from the soil have to be considered for the amelioration of acidic soil.

关键词： acid soil Coal Ash Metal Accumulation Plant Growth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The effect of applied potential on stress corrosion cracking of X80 pipeline steel in acidic soil containing sulfate-reducing bacteria

引用

Science China(Technological Sciences) 2023年第10期66卷 2837-2849页

作者： HE JianYu XIE Fei ZHAO Yang GUO DaCheng WANG Dan LI JunChi College of Petroleum Engineering Liaoning Petrochemical UniversityFushun 113001China Key Laboratory of Oil and Gas Storage and Transportation Technology in Liaoning Province Fushun 113001China Liaohe Oilfield Oil and Gas Gathering and Transmission Company Panjin 124000China Northeast Natural Gas Sales Center Sinopec Natural Gas BranchShenyang 110100China

Electrochemical experiments,slow strain rate tensile testing(SSRT),and scanning electron microscopy were used to investigate the effect of various applied potentials on the stress corrosion cracking(SCC)of X80 pipeline steel in acidic soil containing sulfate-reducing bacteria(SRB).The results demonstrated that when the anodic potential was applied,X80 steel exhibited sensitivity to SCC,which was attributed to anodic dissolution.The SCC sensitivity initially decreased,but then increased with a negative shift in the applied potential.At-1200 mV,SCC was the most sensitive,which corresponded to the substantial cathodic polarisation and toxic impact of SRB,which increased the risk of hydrogen embrittlement.At-850 mV,the SCC sensitivity was the lowest because cathodic polarisation suppressed anodic dissolution.The experimental results can contribute to the prevention and management of SCC in operational pipelines.

关键词： applied potential acid soil SCC sulfate-reducing bacteria

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Genetic Improvement of Root Growth Contributes to Efficient Phosphorus Acquisition in maize (Zea mays L.)

引用

Journal of Integrative Agriculture 2013年第6期12卷 1098-1111页

作者： ZHANG Yi-kai CHEN Fan-jun CHEN Xiao-chao LONG Li-zhi GAO Kun YUAN Li-xing ZHANG Fu-suo MI Guo-hua Laboratory of Plant-soil Interactions Ministry of Education/Center for Resources Environment and Food Security College of Resources and Environmental Science China Agricultural University

Maize plants adapt to low phosphorus （P） stress by increasing root growth. It is of importance to know the extent to which genetic improvement of root growth can enhance P acquisiton. In the present study, the contribution of root growth improvement to efficient P acquisition was evaluated in two soils using T149 and T222, a pair of near isogenic maize testcrosses which were derived from a backcross BC 4 F 3 population. T149 and T222 showed no difference in shoot biomass and leaf area under normal growth conditions, but differed greatly in root growth. T149 had longer lateral roots and a larger root surface area compared to T222. In calcareous soil, when P was insufficient, i.e., when P was either supplied as KH 2 PO 4 at a concentration of 50 mg P kg-1 soil, or in the form of Phy-P, Ca3-P or Ca10-P, a 43% increase in root length in T149 compared to T222 resulted in an increase in P uptake by 53%, and shoot biomass by 48%. In acid soil, however, when P supply was insufficient, i.e., when P was supplied as KH 2 PO 4 at a concentration of 100 mg P kg-1 soil, or in the form of Phy-P, Fe-P or Al-P, a 32% increase in root length in T149 compared to T222 resulted in an increase in P uptake by only 12%, and shoot biomass by 7%. No significant differences in the exudation of organic acids and APase activity were found between the two genotypes. It is concluded that genetic improvement of root growth can efficiently increase P acquisition in calcareous soils. In acid soils, however, improvements in the physiological traits of roots, in addition to their size, seem to be required for efficient P acquisition.

关键词： P efficiency roots low phosphorus calcareous soil acid soil maize

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Screening of the dominant rhizosphere bacteria and their effects of the tolerant and sensitive soybeans to Al stress in the acidic soil

Screening of the dominant rhizosphere bacteria and their eff...

引用

江苏省遗传学会2017年学术研讨会——“技术创新与遗传...

作者：储淑娟 Li Liang Zhong-ling Wen Xiang Zhu Cheng-Yi Tang Jin-Liang Qi Rong-Wu Yang Gui-Hua Lu 杨永华 Nanjing University 南京大学

acid red soil is a typical soil type in south China, which is one of the important factors limiting the growth and yield of soybeans. This study adopted a typical acid soil, with two soybean genotypes BX10（Al tolerant） and BD2（Al sensitive） as the materials, screened the rhizobia of effective nodulation from the nodules of the two soybeans, identified them belonging to the genus Rhizobium by nodulation test and 16 s rDNA amplification, and carried on the experiment of aluminum stress, and finally obtained an Al tolerant nitrogenfixing strain（R.T-1）, which could grow well in the Al concentration of 250 umol/L, and identified its physiological and biochemical characterization and measured the related indicators of quorum sensing. With the addition of the strain, the quorum-sensing seemed more obvious in soybean growth, thus, it might provide a basis for the follow-up study on mechanism of Al tolerance and the effect on increasing yield of soybean in acid soils. Further, the rhizosphere soils were collected, the V4 region of the soil 16 S r DNA was analyzed by Illuinum MiSeq platform. The results showed some significant differences between the two soils with soybean BX10 and BD2 and the different layers of rhizosphere soil. The soil bacteria were annotated and analyzed based on the phylum, class, order, family, genus and species, the main dominant bacteria in the soils were identified as Proteobacteria, Actinobacteria, Firmicutes, Bacteroidetes, Verrucomicrobia. In the BX10 rhizosphere soil, Janthinobacterium and Burkholderia were enriched, which seems to be important for promoting the growth and acid tolerance of soybean.

关键词： acid soil soybean Aluminum tolerant rhizobium 16S rRNA gene Illuinum MiSeq

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：