目的 测定海安县褐家鼠凝血酶原时间(PT).方法 PT测定采用仪器法,PT采用国际标准化比值(INR)表示.结果 褐家鼠平均PT值为0.71,其中雌鼠为0.71,雄鼠为0.73；对照大鼠PT均值为0.88；经t检验,两种鼠的PT均值比较有统计学意义(t=-3.228,P＜0.01).结论 此次实验所测得的褐家鼠PT值范围为0.64～0.78,褐家鼠与对照大鼠的PT均值有差异,其原因有待于进一步研究
Neural restoration has been proved to be difficult after brain stroke especially in its later stage.This is mainly due to the generation of an unpropitious niche in the injured area, including loss of
Wheat floral organ is directly related to kernel number per tiller.Characterizing genes specifically expressed in wheat flowers could help us understand and control floral organ development, and event
Heading date is a major determinant of adaptability and yield potential in rice (Oryza sativa L.) and is influenced by photoperiod.Among chromosome segment substitution lines (CSSLs), the introgressio
In plants, endogenous small RNAs, including microRNAs (miRNAs) and trans-acting small interfering RNAs play an important role in biological processes such as development and stress responses.While the
Alkaline/neutral invertases (A/N-Invs) have attracted more attention due to the increasing findings in their physiological significance, subcellular locations and enzymatic properties.In Hevea brasili
NF-Y (NUCLEAR FACTOR-Y), a heterotrimeric transcription factor, is composed of NF-YA, NF-YB, and NF-YC proteins in yeast, plant, and animal systems.In plants,each of the NF-YA/B/C subunits forms a mul
Anthocyanins are natural food colorantsproduced by plants.They play important roles in the growth and development of these plants.Mulberry fruits are rich in anthocyanins, which have many potentially
Proanthocyanidins (PAs) contribute to poplar defense mechanisms against biotic and abiotic stresses.Transcripts of PA biosynthetic genes accumulated rapidly in response to infection by the fungus Mars
The fertility of female reproductive system is the basic of yields formation and heterosis utilizing, also an important research content of apomixes which is a main approach to fix heterosis.The varie