解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::Extracellularly secreted peroxidases in cell suspension culture of tobacco (Nicotiana tabacum L. cv. Bright Yellow-2, cell line BY-2) catalyse the salicylic acid (SA)-dependent formation of active oxygen species (AOS) which, in turn, triggers an increase in cytosolic Ca2+ concentration. Addition of horseradish peroxid...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-04-01 00:00:00
abstract::Groundnuts (Arachis hypogaea L.) are an important crop of the semi-arid tropics where they are often exposed to maximum temperatures of > 40 degrees C for short periods during the growing season. The objectives of this study were to determine: (i) the effects of short periods of exposure to high temperature on flower ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.345.777
更新日期:2000-04-01 00:00:00
abstract::Nitrate assimilation was analysed in chicory plants (Cichorium intybus L. cv. Turbo) during the early vegetative growth. Nitrate reductase (NR, EC 1.6.6.1) activity (NRA) was measured in roots and leaves at different developmental stages. During phase I, which corresponds to the structural growth (21-42 DAS), nitrate ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.344.539
更新日期:2000-03-01 00:00:00
abstract::It has been suggested that antioxidants play a role in regulating or modulating senescence dynamics of plant tissues. Ethylene has been shown to promote early plant senescence while controlled atmospheres (CA; reduced O2 levels and elevated CO2 levels) can delay its onset and/or severity. In order to examine the possi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.344.645
更新日期:2000-03-01 00:00:00
abstract::Pepper (Capsicum annuum L.) plants were grown aeroponically in a Singapore greenhouse under natural diurnally fluctuating ambient shoot temperatures, but at two different root-zone temperatures (RZTs): a constant 20 +/- 2 degrees C RZT and a diurnally fluctuating ambient (A) (25-40 degrees C) RZT. Plants grown at 20-R...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.343.239
更新日期:2000-02-01 00:00:00
abstract::The relationship between carbon income and expenditure over the life of a leaf is described and related to the productivity benefits of altering the timing of senescence initiation. In genetic variants with delayed leaf senescence ('stay-greens') deconstruction of the photosynthetic apparatus during leaf senescence is...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jexbot/51.suppl_1.329
更新日期:2000-02-01 00:00:00
abstract::The two-fold purpose of this work is, first, to review current hypotheses for multiple paths of sugar-sensing in an oxygen-responsive context, and second, to present evidence for the extent of sugar/oxygen overlap regulating genes for sucrose and ethanol metabolism. Current data indicate that sugar signals in plants m...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jexbot/51.suppl_1.417
更新日期:2000-02-01 00:00:00
abstract::Crop yields increased dramatically in the 20th century as recorded on Broadbalk or in world averages. The vast majority of that increase has occurred since the last world war and has been powered by changes in the genetic potential of the crop and in the way in which it has been managed. Nevertheless, the challenge to...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Secondary salinization and its relationship to irrigation are strong incentives to improve the tolerance of crops to salinity and to drought. Achieving this through the pyramiding of physiological traits (phenotypic selection without knowledge of genotype) is feasible. However, wide application of this approach is lim...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Site-directed mutations have been generated in the pore and voltage sensor regions of the inwardly rectifying potassium channels KAT1 and KST1. The properties of mutant channels have been analysed in Xenopus oocytes, and give insights into the structure-function relations of these channels. ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/48.Special_Issue.415
更新日期:1997-03-01 00:00:00
abstract::In the present study abscisic acid-induced stomatal closing, and malate effects on stomatal apertures were analysed in the presence of guard cell ion channel regulators. A recent study has suggested that abscisic acid (ABA) activation of protein kinases and/or inhibition of protein phosphatases may be central to activ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/48.Special_Issue.539
更新日期:1997-03-01 00:00:00
abstract::Although plants are photoautotrophic organisms, they are composed of many heterotrophic tissue systems that must import sugars and amino acids in a process known as assimilate partitioning. While the general features of assimilate partitioning were well described by the early 1980s, little was known about the various ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/47.Special_Issue.1205
更新日期:1996-08-01 00:00:00
abstract::Dry matter partitioning is the end result of the flow of assimilates from source organs via a transport path to the sink organs. The dry matter partitioning among the sinks of a plant is primarily regulated by the sinks themselves. The effect of source strength on dry matter partitioning is often not a direct one, but...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/47.Special_Issue.1281
更新日期:1996-08-01 00:00:00
abstract::Plasma membranes were isolated using the aqueous polymer two-phase partition method from the algae Chara corallina and Chara longifolia, algae which differ in their ability to grow in saline environments. Enrichment of plasma membrane and depletion of tonoplast relative to the microsomal fraction was monitored using p...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/47.4.589
更新日期:1996-04-01 00:00:00
abstract::To study the effect of root-zone pH on characteristic responses of NH4+ -fed plants, soybeans (Glycine max¿L.¿ Merr. cv. Ransom) were grown in flowing solution culture for 21 d on four sources of N (1.0 mol m-3 NO3-, 0.67 mol m-3 NO3- plus 0.33 mol m-3 NH4+, 0.33 mol m-3 NO3- plus 0.67 mol m-3 NH4+, and 1.0 mol m-3 NH...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/42.2.189
更新日期:1991-02-01 00:00:00