Notes on dead wood dematiaceous hyphomycetes Ⅰ. Two newly recorded species from China

A recent investigations of dematiaceous hyphomycetes occurring on dead wood in various subtropical and tropical zones of southern China have yielded two species new to China, and they are reported in this paper.     

小麦显性核不育基因的遗传效应 Genetic Effects of a Dominant Male Sterile Gene on F1 in Common Wheat

采用NCII设计研究显性核不育基因在40个杂种F1代的遗传效应。结果表明，显性核不育基因对F1代形态性状影响不大，而对产量、产量性状及品质性状的影响较大。F1形态性状主要表现加性效应，且不育株和可育株趋势一致；可育株单株产量及大部分产量性状表现显性效应，百粒重、每小穗粒数表现加性效应，而不育株这些性状的加、显性效应起作用。F1两种育性植株蛋白质含量的遗传以加性效应为主、蛋白质产量以显性效应为主，籽粒饱满度则是可育株以加性效应为主，不育株以显性效应为主。显性核不育基因在F1代有明显的母性效应，且在这种基因的细胞质基础上核质互作也很重要。     

Erratum to: Coarse root spatial distribution determined using a ground-penetrating radar technique in a subtropical evergreen broad-leaved forest, China

Erratum to:Science China Life Sciences,November 2013 Vol.56 No.11:1038–1046doi:10.1007/s11427-013-4560-7The legend of Figure 1 should be as follows:Figure 1 Distribution map of 15 subplots at three types of habitats(ridge,slope and valley)     

Quantitative assessment of acute kidney injury by noninvasive arterial spin labeling perfusion MRI:a pilot study

The kidneys are essential for maintaining homeostasis,are responsible for the reabsorption of water,glucose and amino acids,and filter the blood by removing waste.Acute kidney injury(AKI) is a syndrome characterized by the rapid loss of renal excretory function and the accumulation of end metabolic products of urea and creatinine.AKI is associated with the later development of chronic kidney disease and end-stage kidney disease,and may eventually be fatal.Early diagnosis of AKI and assessments of the effects of treatment,however,are challenging.The pathophysiological mechanism of AKI is thought to be the imbalance between oxygen supply and demand in the kidneys.We have assessed the ability of arterial spin labeling(ASL) perfusion magnetic resonance imaging(MRI),without the administration of contrast media,to quantify renal blood flow(RBF) non-invasively.We found that RBF was significantly lower in AKI patients than in healthy volunteers.These results suggest that ASL perfusion MRI,a noninvasive measurement of RBF,may be useful in the early diagnosis of AKI.     

Transgenic mice overexpressingγ-aminobutyric acid transporter subtypeⅠ develop obesity

INTRODUCTION7-aminobutyricacid(GABA)isthemajorinhibitoryneurotransmitterinthevertebratecelltralnervoussystemwhereitactingesavaxietyofGABAreceptortypes.TheneurotransmissionofGABAisthoughttobeterllilnatedbyit'srapidre-uptakeviaGABAtransportersintopresynapticneuronsandsurroundingglialcellsll,2].BesidesfUnctioningintheterminationofsynaptictransmission,GABAtransportersplayacriticalroleintheregUlationofthemagnitudeanddurationofGABA'sactionandmayajsomediatethereleaseofGABAintotheedrac…