检索结果-南通市图书馆

Brassinosteroids Regulate the differential growth of Arabidopsis Hypocotyls through Auxin Signaling Components IAA19 and ARF7

引用

Molecular Plant 2013年第3期6卷 887-904页

作者： Xiao-Yi Zhou Li Song Hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 300 Fenglin Road 200032 Shanghai China

Brassinosteroids （BRs） are an important class of phytohormones which regulates a wide range of physiological processes. Genetic and physiological studies have revealed that BR responses usually depend on an intact auxin signaling pathway. Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 （dominant mutant of IAA19） and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzrl-D （dominant mutant of BZR1 with enhanced BR signaling）. Interestingly, BZR1 protein can directly bind to the promoter regions of both IAA19 and ARFT, indicating that IAA19 and ARF7 mediate the BR-induced differential growth by serving as direct targets of BZR1. Systemic microarray analysis revealed that a number of BR-responsive genes showed reduced BR response in msg2, confirming that BR employs auxin signaling components IAA19 and ARF7 to modulate the specific downstream processes. These results provide informative clues on the crosstalk of BR-auxin signaling and the mechanisms of BR-auxin effects in regulating differential growth.

关键词： brassinosteroids (BRs) auxin IAA19 ARF7 differential growth Arabidopsis.

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

To curve for survival:Apical hook development

引用

Journal of Integrative Plant Biology 2023年第2期65卷 324-342页

作者： Yichuan Wang Yang Peng Hongwei Guo Department of Biology School of Life SciencesKey Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education InstitutesInstitute of Plant and Food ScienceSouthern University of Science and Technology(SUSTech)Shenzhen 518055China

Apical hook is a simple curved structure formed at the upper part of hypocotyls when dicot seeds germinate in *** hook structure is transient but essential for seedlings’survival during soil emergence due to its efficient protection of the delicate shoot apex from mechanical *** a superb model system for studying plant differential growth,apical hook has fascinated botanists as early as the Darwin age,and significant advances have been achieved at both the morphological and molecular levels to understand how apical hook development is ***,we will mainly summarize the research progress at these two *** will also briefly compare the growth dynamics between apical hook and hypocotyl gravitropic bending at early seed germination phase,with the aim to deduce a certain consensus on their ***,we will outline the remaining questions and future research perspectives for apical hook development.

关键词： apical hook auxin gradient differential growth HOOKLESS1 phytohormones

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

Transcriptomic Analysis and Comparison of the Gene Expression Profiles in Fast- and Slow-Growing Pearl Oysters Pinctada fucata martensii

引用

Journal of Ocean University of China 2022年第1期21卷 186-194页

作者： XU Hanzhi LIU Huiru ZHANG Hua HE Maoxian CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology Guangdong Provincial Key Laboratory of Applied Marine BiologySouth China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of Sciences Beijing 100049China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China

The pearl oyster Pinctada fucata martensii is an economically valuable shellfish that is cultured for seawater pearl pro-duction,which mainly depends on oyster ***,the growth mechanisms of the pearl oyster are still poorly *** this study,oysters were grouped with relative growth rate,including fast-growing(FG)group and slow-growing(SG)*** Nanopore Technologies(ONT)long-read sequencing was applied to investigate the molecular mechanisms involved in the growth of this *** alternative splicing(AS)types were analyzed in both FG and SG groups,which include alternative 3’splice site,alternative 5’splice site,exon skipping,intron retention,and mutually exclusive *** analysis showed that four of five different AS events(excluding mutually exclusive exons)occurred more frequently in FG than in SG oysters,and the five main AS types exhibited different *** AS events that were detected may be involved in growth,and the difference in ex-pression of AS events between FG and SG oysters may be involved in the mechanism underlying the difference in *** dif-ferentially expressed genes(DEGs)were identified between the FG and SG *** results showed that 40 genes were signifi-cantly up-regulated in FG oysters,while 10 genes were significantly down-regulated in SG *** genes related to nutrient metabolism,shell formation,and immunity were more highly expressed in FG oysters than in SG *** summary,FG oysters exhibited higher metabolic and biomineralization activities and had a more powerful immune system than SG *** results provide insight into the growth of *** that can be used to improve breeding programs.

关键词： Pinctada fucata martensii differential growth Oxford Nanopore Technologies sequencing differentially expressed genes

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

Defoliation affects the root competitive balance for N between Poa annua plants grown in a split‐root box

引用

Grassland Research 2022年第2期1卷 94-102页

作者： Sayuki Mori Louis John Irving School of Life and Environmental Sciences University of TsukubaTsukubaJapan

Background:Plants compete aboveground for light and belowground for patchily distributed *** causes an immediate loss of leaf area and photosynthetic capacity,leading to reduced root growth,with hypothesised implications for nutrient uptake and nitrogen use ***:In Experiment 1,we grew single plants in split root boxes with N supplied equally or unequally,with half the plants subject to repeated defoliation to quantify the impact of each *** Experiment 2,we grew pairs of Poa annua plants in three‐chamber split root boxes,with N supplied either to the outer chambers(no competition)or to a shared centre chamber(competition),to quantify the influence of defoliation on root ***:In Experiment 1,defoliation caused a significant decrease in root mass but did not affect root distribution between chambers,while differential N supply led to an 11%increase in shoot *** Experiment 2,strong root competition was seen in undefoliated plants under competitive *** one plant was defoliated,the other exhibited increased shoot mass and N content in competitive,but not noncompetitive ***:Our data suggest that plant belowground competitive success following defoliation may be strongly influenced by the spatial distribution of soil resources.

关键词： competition defoliation differential growth nitrogen nitrogen use efficiency Poa annua root

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

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

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

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：