Results 71 to 80 of about 46,361 (266)
The power of ionic movements in plants
New Phytologist, Volume 249, Issue 5, Page 2232-2240, March 2026.Summary The movement of ion‐driven electrogenic events known as plant action potentials in the Venus flytrap Dionaea muscipula has first been recognized in Darwin's time. Besides electrophysiological techniques making use of current‐ and voltage‐recording electrodes, today an ever‐growing spectrum of tools has become available, that report online ...
Rainer Hedrich, Ines Kreuzer
wiley +1 more source
New Phytologist, Volume 249, Issue 5, Page 2515-2530, March 2026.Summary Fumonisin B1 (FB1) is a mycotoxin that disrupts ceramide biosynthesis and kills plants. Prior activation with bacterial microbe‐associated molecular patterns (MAMPs), such as components of bacterial flagella, effectively suppresses FB1‐induced cell death.
Ali O. Alqarni +3 more
wiley +1 more source
Dianci bileiqi, 2012 以非线性金属氧化物电阻片为核心元件组成的过电压保护装置动作时,要吸收大量能量,需采用多柱电阻片柱并联结构。有关标准中明确规定,多柱电阻片各柱之间电流分布不均匀系数β应不大于1.1。在测量检测时,受电流冲击测试设备能力的限制,不能同时进行几十柱甚至上百柱电阻片柱的电流分布不均匀系数的测量。根据金属氧化物电阻片伏安特性的特点,提出了一种测量多柱并联电阻片柱电流分布不均匀系数的方法,简单可靠,可以在实际工程中使用。
胡淑慧 +4 more
doaj
New Phytologist, Volume 249, Issue 5, Page 2241-2250, March 2026.Summary Subject to an ever‐changing world, plants must respond to harmful conditions and environmental fluctuations. Their evolutionary success can be attributed to their plasticity in both perceiving and integrating these variations to facilitate adaptation.
Rory Osborne
wiley +1 more source
New Phytologist, Volume 249, Issue 5, Page 2452-2466, March 2026.Summary Plants orchestrate their developmental processes and responses to environmental stimuli through a sophisticated network of small signaling molecules, termed phytohormones. Among these, auxins are recognized for their role in promoting plant growth.
José Moya‐Cuevas +8 more
wiley +1 more source
Shiyou jixie, 2012 为了给采气管柱疲劳寿命分析和完整性分析提供依据，考虑管柱自重及内、外压沿深度的线性变化，用有限元软件分析振动采气管柱的应力强度。将采气管柱看作是内空的细长杆，用有限元法对管柱进行离散化处理，再用拉格朗日方程得到采气管柱动力学微分方程。采用二维轴对称模型进行建模，采用4节点平面单元Plane42进行分析。分析结果表明，采用ANSYS中轴对称单元Plane42建立采气管柱有限元模型，进行振动采气管柱的应力强度分析是一种有效的方法；井口管柱应力最大，是应力危险点；振动载荷作用下 ...
曹银萍, 唐庚, 唐纯洁, 郭建华
doaj
Gaoya dianqi, 2021 三支柱绝缘子作为GIL设备中的重要部件,研究其表面电荷积聚特性具有重要意义。为充分掌握其电场分布,文中开展了表面电荷集聚理论分析和三支柱绝缘子的电场分布仿真计算,研制了三支柱绝缘子表面电荷测量装置,并在交流电压下开展了表面电荷测量试验。结果表明:三支柱绝缘子腹部区域电场法向分量大于支柱区域;200 kV以下,腹部表面平均电荷密度约为支柱的2.5～3倍,250 kV以上,腹部表面平均电荷密度约为支柱的5倍;三支柱绝缘子测量得到的实际电荷分布与仿真结果相符。
陈蔚 +4 more
doaj
Climate adaptation and functional constraints drive pollen evolution in Apiales
New Phytologist, Volume 249, Issue 5, Page 2574-2587, March 2026.Summary Pollen grains exhibit remarkable morphological diversity, shaped by selective pressures from environmental factors and mechanical constraints. Here, we investigate macroevolutionary patterns of pollen morphology in Apiales, an order of angiosperms with significant ecological and geographical diversity, to disentangle the roles of climate and ...
Jakub Baczyński +3 more
wiley +1 more source
New Phytologist, Volume 249, Issue 5, Page 2251-2262, March 2026.Summary Soil nutrients and vertebrate herbivory are key ecological factors with opposite and interactive effects on grassland plant traits and biomass. Partitioning trait changes into species turnover and intraspecific change provides a mechanistic linkage between trait shifts and biomass responses.
Xuebin Yan +2 more
wiley +1 more source