South China Agricultural University commonly referred to as SCAU, is a public university in Guangzhou, China.Founded in 1909. Main campus settles in Wushan, Guangzhou, People's Republic of China. It is a national comprehensive university with long history. The university has 24 colleges/department and more than 40,000 students, including international students from 33 countries. The main feature of the university is biology science. Wikipedia.
Chen L.,State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources |
Chen L.,Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms |
Chen L.,South China Agricultural University |
Liu Y.-G.,State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources |
And 2 more authors.
Annual Review of Plant Biology | Year: 2014
In plants, male sterility can be caused either by mitochondrial genes with coupled nuclear genes or by nuclear genes alone; the resulting conditions are known as cytoplasmic male sterility (CMS) and genic male sterility (GMS), respectively. CMS and GMS facilitate hybrid seed production for many crops and thus allow breeders to harness yield gains associated with hybrid vigor (heterosis). In CMS, layers of interaction between mitochondrial and nuclear genes control its male specificity, occurrence, and restoration of fertility. Environment-sensitive GMS (EGMS) mutants may involve epigenetic control by noncoding RNAs and can revert to fertility under different growth conditions, making them useful breeding materials in the hybrid seed industry. Here, we review recent research on CMS and EGMS systems in crops, summarize general models of male sterility and fertility restoration, and discuss the evolutionary significance of these reproductive systems. Copyright © 2014 by Annual Reviews.
Dong X.Y.,South China Agricultural University
Lipids in health and disease | Year: 2012
The molecular mechanism of how cells maintain cholesterol homeostasis has become clearer for the understanding of complicated association between sterol regulatory element-binding proteins (SREBPs), SREBP cleavage-activating protein (SCAP), 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoA reductase) and Insuin induced-genes (Insigs). The pioneering researches suggested that SREBP activated the transcription of genes encoding HMG-CoA reductase and all of the other enzymes involved in the synthesis of cholesterol and lipids. However, SREBPs can not exert their activities alone, they must form a complex with another protein, SCAP in the endoplasmic reticulum (ER) and translocate to Golgi. Insigs are sensors and mediators that regulate cholesterol homeostasis through binding to SCAP and HMG-CoA reductase in diverse tissues such as adipose tissue and liver, as well as the cultured cells. In this article, we aim to review on the dual functions of Insig protein family in cholesterol homeostasis.
Situ H.,South China Agricultural University
Quantum Information Processing | Year: 2014
We present a quantum approach to play asymmetric coordination games, which are more general than symmetric coordination games such as the Battle of the Sexes game, the Chicken game and the Hawk-Dove game. Our results show that quantum entanglement can help the players to coordinate their strategies. © 2013 Springer Science+Business Media New York.
Dan X.M.,South China Agricultural University
Fish & shellfish immunology | Year: 2013
In order to elucidate the immune-protective mechanisms of inactivated Cryptocaryon irritans vaccine, different doses of C. irritans theronts were used to immunize orange-spotted grouper (Epinephelus coioides). We measured serum immobilization titer, blood leukocyte respiratory burst activity, serum alternative complement activity, and serum lysozyme activity weekly. In addition, the expression levels of immune-related genes such as interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), major histocompatibility complexes I and II (MHC I and II), and transforming growth factor-β1 (TGF-β1) were determined in spleen and gills. The results showed that the immobilization titer, respiratory burst activity, and alternative complement activity of immunized fish were significantly increased, and the levels of the last two immune parameters in the high-dose vaccine group were significantly higher than in the low-dose vaccine group. Serum lysozyme activity in the high-dose vaccine group was significantly higher than in the PBS control group. Vaccination also regulated host immune-related gene expression. For example, at 2- and 3- weeks post immunization, IL-1β expression in the high-dose vaccine group spleen was significantly increased. At 4-weeks post immunization, the fish were challenged with a lethal dose of parasite, and the survival rates of high-dose vaccine group, low-dose vaccine group, PBS control group, and adjuvant control group were 80%, 40%, 0%, and 10% respectively. These results demonstrate that inactivated C. irritans vaccination improves specific and nonspecific immune responses in fish, enhancing their anti-parasite ability. These effects are vaccine antigen dose-dependent. Copyright © 2013 Elsevier Ltd. All rights reserved.
Liu M.,South China Agricultural University
Match | Year: 2010
This paper presents a simple approach to order the first Zagreb indices of connected graphs. Moreover, by the application of this simple approach, we extend the known ordering of the first Zagreb indices for some class of connected graphs.