Fujian Agriculture and forestry University

Fuzhou, China

Fujian Agriculture and Forestry University is a public university in Jinshan, Fuzhou, Fujian, China. Fujian Agriculture and Forestry University's library collection contains more than 1.63 million volumes. Wikipedia.

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Zhan J.,Fujian Agriculture and forestry University | McDonald B.A.,ETH Zurich
Molecular Ecology | Year: 2011

Genetic differentiation in thermal adaptation can result from a trade-off between the performance of organisms across different temperatures or from the accumulation of deleterious mutations. In this experiment, we assayed thermal sensitivity of 138 genetically distinct Mycosphaerella graminicola isolates sampled from five host populations in four locations under two temperature regimes (22 and 15 °C) and found significant differences in growth rate and response to temperature among populations. On average, genetic differentiation accounted for more than 50% of phenotypic variation in thermal adaptation while plasticity contributed less than a quarter of phenotypic variation. Populations originating from warm places performed better under the high-temperature regime and had a larger positive response to increasing temperature. Pairwise population differentiation (Q ST) in temperature sensitivity, measured by taking the ratio of growth rates at 22 to 15 °C, was positively and significantly correlated to the pairwise difference in annual mean temperature at the collection sites. Because overall Q ST in temperature sensitivity was significantly higher than overall G ST in neutral restriction fragment length polymorphism loci, we believe that the primary mechanism underlying this thermal adaptation is antagonistic pleiotropy. Our results indicate that temperature sensitivity is a better indicator of thermal adaptation than growth rate at individual temperatures. © 2011 Blackwell Publishing Ltd.

Zhan J.,Fujian Agriculture and forestry University | McDonald B.A.,ETH Zurich
Annual Review of Phytopathology | Year: 2013

Competition among pathogen strains for limited host resources can have a profound effect on pathogen evolution. A better understanding of the principles and consequences of competition can be useful in designing more sustainable disease management strategies. The competitive ability and relative fitness of a pathogen strain are determined by its intrinsic biological properties, the resistance and heterogeneity of the corresponding host population, the population density and genetic relatedness of the competing strains, and the physical environment. Competitive ability can be inferred indirectly from fitness components, such as basic reproduction rate or transmission rate. However, pathogen strains that exhibit higher fitness components when they infect a host alone may not exhibit a competitive advantage when they co-infect the same host. The most comprehensive measures of competitive ability and relative fitness come from calculating selection coefficients in a mixed infection in a field setting. Mark-release-recapture experiments can be used to estimate fitness costs associated with unnecessary virulence and fungicide resistance. © Copyright ©2013 by Annual Reviews. All rights reserved.

Chen G.,U.S. Department of Agriculture | Chen T.,Fujian Agriculture and forestry University
Talanta | Year: 2014

Due to high toxicity, inorganic arsenic (iAs) species are the focus of monitoring effort worldwide. In this work arsenic was first extracted from rice by microwave-assisted digestion in HNO3-H2O2, during which AsIII was oxidized to AsV. Silica-based strong anion exchange cartridges were used to separate AsV from organic forms. After prereduction by iodide, iAs was quantified by hydride-generation atomic fluorescence spectrometry (HG-AFS). This method achieved 1.3 ng g-1 limit of detection (LOD), and 94±3% and 93±5% recoveries, respectively, for AsIII and AsV at 100 ng g-1. Validation was performed using standard reference material NIST 1568a (102 ng g-1) and ERM BC211 (124 ng g -1) rice flour. By eliminating chromatography, SPE speciation gained throughput and cost advantages. HG-AFS, at 10% budget and operation cost of a typical inductively-couple plasma mass spectrometer (ICPMS), proved highly sensitive and specific for iAs quantification.

Zhu-Salzman K.,Texas A&M University | Zeng R.,Fujian Agriculture and forestry University
Annual Review of Entomology | Year: 2015

Plant protease inhibitors (PIs) are natural plant defense proteins that inhibit proteases of invading insect herbivores. However, their anti-insect efficacy is determined not only by their potency toward a vulnerable insect system but also by the response of the insect to such a challenge. Through the long history of coevolution with their host plants, insects have developed sophisticated mechanisms to circumvent antinutritional effects of dietary challenges. Their response takes the form of changes in gene expression and the protein repertoire in cells lining the alimentary tract, the first line of defense. Research in insect digestive proteases has revealed the crucial roles they play in insect adaptation to plant PIs and has brought about a new appreciation of how phytophagous insects employ this group of molecules in both protein digestion and counterdefense. This review provides researchers in related fields an up-to-date summary of recent advances. © 2015 by Annual Reviews. All rights reserved.

Wang W.,Fujian Agriculture and forestry University | Wang Z.-Y.,Carnegie Institution for Science
Cell Host and Microbe | Year: 2014

The tradeoff between growth and immunity is regulated by integrating hormonal cues, biotic signals, and developmental programs, and is fine-tuned to maximize organismal growth and survival. Four recent papers, including Chandran et al. (2014) in this issue of Cell Host & Microbe, provide insights into the underlying mechanisms in plants. © 2014 Elsevier Inc.

Zhan J.,Fujian Agriculture and forestry University | Thrall P.H.,CSIRO | Burdon J.J.,CSIRO
Trends in Plant Science | Year: 2014

Plants and their pathogens are engaged in continuous evolutionary battles and sustainable disease management requires novel systems to create environments conducive for short-term and long-term disease control. In this opinion article, we argue that knowledge of the fundamental factors that drive host-pathogen coevolution in wild systems can provide new insights into disease development in agriculture. Such evolutionary principles can be used to guide the formulation of sustainable disease management strategies which can minimize disease epidemics while simultaneously reducing pressure on pathogens to evolve increased infectivity and aggressiveness. To ensure agricultural sustainability, disease management programs that reflect the dynamism of pathogen population structure are essential and evolutionary biologists should play an increasing role in their design. © 2014 Elsevier Ltd.

Que Y.X.,Fujian Agriculture and forestry University
Journal of biomedicine & biotechnology | Year: 2011

Differential gene expression in sugarcane during sugarcane-Ustilago scitaminea interaction was conducted in a smut-resistant genotype. Using cDNA-AFLP along with silver staining, a total of 136 transcript-derived fragments (TDFs) were found to be differentially expressed in response to challenge by U. scitaminea. Forty TDFs, 34 newly induced plus six with obvious upregulated expression after infection, were sequenced and validated by RT-PCR analysis. These results demonstrated that the expression of 37 out of these TDFs in RT-PCR analysis was consistent with that in cDNA-AFLP analysis. Based on BlastX in NCBI, 28 TDFs were assumed to function in sugarcane under U. scitaminea stress. Analysis of expression profile of three TDFs revealed that they responded differently after infection with U. scitaminea, and the transcription was significantly enhanced. The response of two TDFs, SUC06 and SUC09, occurred before that of SUC10. This study enriches our knowledge of the molecular basis for sugarcane response to U. scitaminea infection.

Lai Z.,Fujian Agriculture and forestry University | Lin Y.,Fujian Agriculture and forestry University
BMC Genomics | Year: 2013

Background: Longan is a tropical/subtropical fruit tree of great economic importance in Southeast Asia. Progress in understanding molecular mechanisms of longan embryogenesis, which is the primary influence on fruit quality and yield, is slowed by lack of transcriptomic and genomic information. Illumina second generation sequencing, which is suitable for generating enormous numbers of transcript sequences that can be used for functional genomic analysis of longan.Results: In this study, a longan embryogenic callus (EC) cDNA library was sequenced using an Illumina HiSeq 2000 system. A total of 64,876,258 clean reads comprising 5.84 Gb of nucleotides were assembled into 68,925 unigenes of 448-bp mean length, with unigenes ≥1000 bp accounting for 8.26% of the total. Using BLASTx, 40,634 unigenes were found to have significant similarity with accessions in Nr and Swiss- Prot databases. Of these, 38,845 unigenes were assigned to 43 GO sub-categories and 17,118 unigenes were classified into 25 COG sub-groups. In addition, 17,306 unigenes mapped to 199 KEGG pathways, with the categories of Metabolic pathways, Plant-pathogen interaction, Biosynthesis of secondary metabolites, and Genetic information processing being well represented. Analyses of unigenes ≥1000 bp revealed 328 embryogenesis-related unigenes as well as numerous unigenes expressed in EC associated with functions of reproductive growth, such as flowering, gametophytogenesis, and fertility, and vegetative growth, such as root and shoot growth. Furthermore, 23 unigenes related to embryogenesis and reproductive and vegetative growth were validated by quantitative real time PCR (qPCR) in samples from different stages of longan somatic embryogenesis (SE); their differentially expressions in the various embryogenic cultures indicated their possible roles in longan SE.Conclusions: The quantity and variety of expressed EC genes identified in this study is sufficient to serve as a global transcriptome dataset for longan EC and to provide more molecular resources for longan functional genomics. © 2013 Lai and Lin; licensee BioMed Central Ltd.

A stimulating device for enhancing release of negative air ions by a plant includes a plant pot to receive a culture medium for cultivating the plant, and a negative voltage pulse module that outputs a negative voltage pulse to stimulate the plant via a pair of first and second conductive terminals. The first conductive terminal contacts the culture medium. The second conductive terminal is non-contact with the culture medium when the culture medium is placed in the plant pot.

Fujian Agriculture and forestry University | Date: 2015-01-22

This present invention discloses an integrated method of cyclic utilization of energy grasses comprising the steps of generating biogas residue from the energy grasses, growing edible mushrooms from the biogas residue, producing livestock or poultry feeds from the spent mushroom culture medium, feeding livestock with the feeds, and producing organic fertilizers from the manure of the livestock or poultry. The method, by producing biogas, edible mushrooms, feeds, livestock or poultry, and organic fertilizers, makes an integrated and cyclic use of energy grasses and aforementioned products. This invention will help achieve the goal of cyclic use of energy grasses with great efficiency.

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