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褐飞虱是水稻生产中最严重的害虫。褐飞虱通过针状口器刺入水稻叶鞘组织吸食韧皮部汁液,造成水稻严重减产甚至绝收。种植抗性品种是综合防控褐飞虱的基础。然而植物抗病虫性通常受光照、温度和湿度等环境因素的影响,在一定程度上制约了抗性基因的有效利用。如采用密植的栽培方式是当前许多作物增加单位面积产量的重要途径,但是密植通常会导致冠层以下的植株部分光照不足而产生庇荫反应,易滋生各类病虫害,虽然这种现象普遍存在,...
A new study has found that variability in night-to-night sleep time and reduced sleep quality adversely affect the ability of older adults to recall information about past events.Although further inve...
Background: Inadequate nutrition during hospitalization is strongly associated with poor patient outcome, but ensuring adequate food intake is not a priority in clinical routine worldwide. This lack o...
Background: Excess body fat diminishes muscle protein synthesis rates in response to hyperinsulinemic-hyperaminoacidemic clamps. However, muscle protein synthetic responses after the ingestion of a pr...
Background: Excess body fat diminishes muscle protein synthesis rates in response to hyperinsulinemic-hyperaminoacidemic clamps. However, muscle protein synthetic responses after the ingestion of a pr...
Background: Regular-fat cheese contains a high amount of saturated fat. Therefore, dietary guidelines in many countries recommend the consumption of reduced-fat cheese as opposed to regular-fat cheese...
Background: Regular-fat cheese contains a high amount of saturated fat. Therefore, dietary guidelines in many countries recommend the consumption of reduced-fat cheese as opposed to regular-fat cheese...
It is well documented that exercise-induced muscle damage (EIMD) decreases muscle function and causes soreness and discomfort. Branched-chain amino acid (BCAA) supplementation has been shown to incre...
Access to electricity is linked to reduced sleep(图)     electricity is linked  reduced sleep       font style='font-size:12px;'> 2015/7/13
Blame smartphone alerts, constant connectivity and a deluge of media for our society’s sleep deprivation. But the root cause of why we get less sleep now than our ancestors did could come down to a mu...
UNIVERSITY PARK, Pa. -- The comparatively light bone structure of modern humans compared to early human species and other modern primates may be due to the modern abandonment of the constant physical ...
We studied in silico effects of structural stress in Mycoplasma pneumoniae, a genome-reduced model bacterial organism, by tracking the damage propagating on its metabolic network after a deleterious p...
An in vitro study was conducted to investigate the effect of malate or fumarate on fermentation characteristics, and production of conjugated linoleic acid (CLA) and methane (CH4) by rumen microbes wh...
Study on the Lipolytic Function of GPR43 and Its Reduced Expression by DHA     GPR43  Pig  Mouse  Adipose Tissue  Adipocyte  Lipolysis  DHA       font style='font-size:12px;'> 2016/4/29
G protein-coupled receptor 43 (GPR43) is a newly-discovered short-chain free fatty acid receptor and its functions remain to be defined. The objective of this study was to investigate the function of ...
摘要神经管畸形和颅面畸形是最常见的出生缺陷,由遗传和环境因素共同作用所致,大规模的人群流行病学研究已证实,叶酸能降低发生这类畸形的危险。叶酸缺乏是神经管和颅面畸形发生的主要环境因素,但其机制尚不清楚,通过对与叶酸代谢有关的还原叶酸载体(reduced folate carrier,RFC)的生化特点、生理功能、还原叶酸载体基因(RFC1)结构功能、调控、表达及其与叶酸水平和神经管颅面畸形的关系等研...
In vitro rumen incubation studies were conducted to determine effects of initial pH on bacterial attachment and fiber digestion. Ruminal fluid pH was adjusted to 5.7, 6.2 and 6.7, and three major fibr...

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