Results 11 to 20 of about 466 (97)
Reactive oxygen species act as signaling molecules to control root hair initiation and tip growth. [PDF]
New PhytolSummary Root hairs (RHs) increase the surface area of roots, facilitating nutrient and water uptake and plant anchorage. RHs form from root epidermal cells and elongate by polar tip growth. Reactive oxygen species (ROS) have recently been implicated as important signals that drive RH formation and elongation using both genetic and imaging approaches ...
Gerber ME, White MG, Muday GK.
europepmc +2 more sources
Functional Ecology, Volume 39, Issue 11, Page 3255-3268, November 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract The biotic resistance hypothesis (BRH) of Elton posits that diverse communities are more resistant to biological invasions. While the effects of climatic stresses and human disturbances on community invasibility have been extensively studied individually, their combined
Kai Shi, Misbah Naz, Chi Zhang, Hua Shao
wiley +1 more source
The Resistance Research and Application of Typical Plants for Island Vegetation Restoration [PDF]
, 2016 植被是海岛生态系统的重要组成部分，海岛植被修复对加快恢复受损的海岛生态环境，改善海岛居民的生活生产条件起关键作用。目前，我国大部分海岛生态破坏比较严重，而海岛植被修复工作起步较晚，海岛植被修复技术还不完善，对环境恶劣海岛植被修复依然缺乏良策。本文依托平潭海岛景观生境修复技术研究与示范项目，以木麻黄（Casuarinaequisetifolia）、夹竹桃（Neriumindicum）和台湾相思（Acaciaconfusa）为实验材料，室内人为控制干旱胁迫、根系盐胁迫和叶片盐胁迫的程度及时间 ...
陈慧英
core
Effects of exogenous calcium on physiological characteristics and medicinal quality of Platycodon grandiflorus seedlings under drought stress [PDF]
[Objective] Drought stress seriously affects the yield and quality of medicinal plants. This study aims to reveal the physiological mechanism of exogenous calcium in alleviating drought-induced damage in Platycodon grandifloras, which can provide a ...
FU Feifei, OU Xiaobin, SU Yunyun
core +1 more source
Shuitu Baochi Xuebao, 2006 通过盆栽模拟干旱试验，测定了干旱胁迫下玉米根系生长情况和根际土壤中速效N、P、K的含量。结果表明，干旱胁迫抑制了玉米拔节期和抽雄-开花期玉米根系的生长，减弱了玉米根系的吸收能力。干旱胁追下玉米根际NH4^＋-N、NO3^--N、速效P和速效K均发生根际富集现象。其中有效N和速效K含量高于正常供水．而速效P却呈现低于正常供水的趋势。干旱胁追抑制玉米根系生长、减弱根系吸收能力是玉米减产的重要原因。
韩希英, 宋凤斌
doaj +2 more sources
, 2010 选取塔里木河下游3处地下水埋深>6m的监测井位作为研究点,结合典型生态监测断面的地下水位监测数据,分析不同地下水埋深处柽柳的叶绿素荧光特性和光系统的光合活性.结果表明:随着地下水埋深加大和干旱胁迫加剧,柽柳叶片的实际光化学效率、电子传输速率和光化学猝灭等参数普遍下降;非光化学猝灭和调节性能量耗散量子产量等参数显著升高,而最大光量子产量总体处于相对适宜状态.干旱胁迫下柽柳的PSII光合活性随地下水埋深增大而下降,捕获光能的过剩程度加剧,发生光抑制的几率增大,其自身良好的抗旱性和自我调节机制 ...
朱成刚 +3 more
core
Effects of drought and copper stress on the physiological characteristics and ADH gene family in Zaoheibao grape seedlings [PDF]
[Objective] Grape (Vitis vinifera L.) is an important economic crop worldwide. Drought and heavy metal stress are major constraints on the sustainable development of the grape industry. Various strategies, such as applying exogenous substances, promoting
HAN Kai, JI Wei, LIU Chang, WANG Haonan
core +1 more source
Research on the function of ANAC084 in Arabidopsis thaliana in response to the environmental stress [PDF]
, 2016 ANAC084是NAC转录因子家族的一员，其编码一个206个氨基酸的小蛋白。在拟南芥中过表达ANAC084植株出现地上部分变小，莲座叶面积变小、颜色加深，生长周期偏长的表型，但是根的发育并不受影响，进一步的研究表明过表达ANAC084会使拟南芥叶片细胞变小同时使叶片细胞数量大大减少，从而造成植株变小。但是ANAC084-RNAi和ANAC084-SRDX植株在表型上和野生型没有明显区别。通过对ANAC084Pro:gANAC084:GFP:GUS植株进行GFP扫描和GUS染色研究ANAC084的表达模式，
钟小年
core
Responses of potato root architecture and physiological indexes to drought stress at different growth stages [PDF]
[Objective] The present study aimed to elucidate the response of the potato root system to drought stress at different developmental stages. Additionally, the study sought to identify the underlying mechanisms that confer drought resistance in potato ...
CHEN Yanyun +4 more
core +1 more source
Functional Ecology, Volume 38, Issue 12, Page 2709-2719, December 2024.Read the free Plain Language Summary for this article on the Journal blog. Abstract Resilience to drought represents an important focus for trees during climate change, with the aim of predicting the resistance and recovery of species worldwide. Previous studies mainly linked tree growth resilience to plant functional traits that are related to ...
Xijin Zhang +7 more
wiley +1 more source