Results 61 to 70 of about 46,361 (266)
New Phytologist, EarlyView.Summary The morphology of starch granules is a major determinant of the functional and nutritional properties of starch and is highly variable among cereal species. Much of this morphological variation stems from differences in the spatial and temporal patterns of starch granule initiation in amyloplasts during grain development.
Lara Esch +6 more
wiley +1 more source
PEP725: 15 years of driving European and global phenology science
New Phytologist, EarlyView.Summary Phenology – the timing of seasonal biological events – is a sensitive indicator of climate change and ecosystem dynamics. Long‐term, broad‐scale phenological data are crucial for understanding and predicting plant responses to environmental change.
Barbara Templ +4 more
wiley +1 more source
Shiyou jixie, 2012 为了了解螺旋弯曲状态下管柱的应力分布规律，根据管柱螺旋弯曲的特点，利用弹簧理论，结合螺旋弯曲管柱力学分析成果，导出了螺旋弯曲状态下管柱内、外侧的第四相当应力计算公式，弥补了传统管柱力学分析的不足，提高了受压弯曲管柱强度校核的针对性与准确性。分析结果表明，在轴向压力作用下，弯曲管柱内侧的最大相当应力恒大于外侧，并且随着轴向压力的增大，管柱内侧最大相当应力线性增大。因此，对于受压弯曲管柱，应以管柱内壁为应力危险点校核其强度。
窦益华, 于洋, 夏辉, 曹银萍
doaj
New Phytologist, EarlyView.Summary The Grant‐Stebbins model predicts that a plant species encountering different pollinators across its range may undergo local adaptation and, subsequently, ecological speciation. We tested whether this could explain the origin of Aeschynanthus acuminatus (Gesneriaceae), a species phylogenetically derived from sunbird specialist ancestors.
Jing‐Yi Lu +3 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2003 本文通过沪东造船厂船体装焊车间大跨度、大柱距钢管混凝土柱的设计研究,论述了在大吊车荷载作用下,钢管混凝土柱比其他形式的柱更为经济,更为合理;对柱脚、牛腿、肩粱以及钢管混凝土组合柱的节点构造与受力性能提出了新的看法;并简单介绍了钢管混凝土组合柱的计算要点。
吴建林, 姚永
doaj
New Phytologist, EarlyView.Summary To address a critical gap in understanding amino acid transport in legume–Rhizobium symbiosis, we investigated the role of symbiosis‐associated USUALLY MULTIPLE ACIDS MOVE IN AND OUT TRANSPORTERS (UMAMITs) in Medicago truncatula nodulation.
Courtney S. Winning +8 more
wiley +1 more source
Shiyou jixie, 2014 深水钻井作业过程中，管柱在平台升沉振动的作用下产生纵向振动载荷，影响管柱的强度安全。以深水下表层套管作业管柱为例，建立了具有复杂结构的深水作业管柱纵向振动力学模型，并利用振动力学理论分析了管柱的纵向自由振动特性及纵向受迫振动载荷。分析结果表明，在平台升沉振动的作用下，作业管柱的纵向振动以第1阶振型为主；管柱顶端截面上的纵向振动载荷最大，是作业管柱上的危险截面；当钻井平台的升沉振动周期接近作业管柱的固有周期时，将产生极大的纵向振动载荷；当表层套管下入深度较大时 ...
张辉, 柯珂, 王磊
doaj
A novel single‐cell NAD‐ME C4 subtype integrated with CAM and bicarbonate use in an aquatic plant
New Phytologist, Volume 249, Issue 5, Page 2386-2401, March 2026.Summary Many plants maximize photosynthesis by using a CO2‐concentrating mechanism (CCM). Based on physiology, the freshwater plant Ottelia alismoides has three CCMs: C4 metabolism (NAD‐malic enzyme (NAD‐ME) subtype) and bicarbonate‐use during the day plus crassulacean acid metabolism (CAM) at night and lacks Kranz anatomy. Here, we combined a range of
Hong Sheng Jiang +11 more
wiley +1 more source
Shiyou jixie, 2015 高压气井生产管柱内流体的流动会诱发管柱振动，管柱振动会导致其疲劳、磨损甚至破裂，影响气井正常生产。结合油田现场实际，在考虑管柱重力的情况下，研究了高压气井生产管柱的横向振动特性。运用哈密顿原理，建立了包含生产管柱轴向力、管内流体流速和管内外流体压力等因素的生产管柱横向振动模型。运用伽辽金方法求解模型，计算并讨论了管柱重力、气井产量、井底压力和管柱底端轴向力等参数对油管振动频率及稳定性的影响。研究结果表明，管柱重力是生产管柱振动分析中不可忽略的因素；生产管柱的振动频率随着产量 ...
樊洪海 +6 more
doaj
Causes and consequences of bacterial local adaptation via MGEs in the plant microbiome
New Phytologist, Volume 249, Issue 5, Page 2215-2223, March 2026.Summary Adaptations that enable plant‐associated bacteria to fill disparate niches comprise a critical component of microbial diversity. Genes that confer locally adaptive bacterial traits, ranging from heavy metal resistance to pathogen or symbiont infectivity, often reside within mobile genetic elements (MGEs) that can move between genomes.
Stephanie Porter +3 more
wiley +1 more source