A5066528647- Legume Nitrogen Fixing Symbiosis
- Plant Reproductive Biology
- Plant nutrient uptake and metabolism
- Plant and Fungal Interactions Research
- Horticultural and Viticultural Research
- Plant Molecular Biology Research
- Polysaccharides and Plant Cell Walls
- Nuts composition and effects
- Agronomic Practices and Intercropping Systems
- Plant-Microbe Interactions and Immunity
- Plant Micronutrient Interactions and Effects
- Mycorrhizal Fungi and Plant Interactions
- Plant biochemistry and biosynthesis
- Plant Pathogens and Fungal Diseases
- Aluminum toxicity and tolerance in plants and animals
- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Plant Gene Expression Analysis
- Photosynthetic Processes and Mechanisms
- Microbial Metabolism and Applications
- Seed Germination and Physiology
- Fermentation and Sensory Analysis
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Chromosomal and Genetic Variations
Beijing University of Agriculture
2016-2025
Graduate School Experimental Plant Sciences
2017-2018
Wageningen University & Research
2012
King Saud University
2011
Institut de Recherche pour le Développement
2011
Rhizobium-root nodule symbiosis is generally considered to be unique for legumes. However, there one exception, and that Parasponia. In this nonlegume, the rhizobial evolved independently is, as in legumes, induced by rhizobium Nod factors. We used Parasponia andersonii identify genetic constraints underlying evolution of factor signaling. Part signaling cascade, downstream perception, has been recruited from more-ancient arbuscular endomycorrhizal symbiosis. legume receptors activate common...
Significance Fixed nitrogen is essential for plant growth. Some plants, such as legumes, can host nitrogen-fixing bacteria within cells in root organs called nodules. Nodules are considered to have evolved parallel different lineages, but the genetic changes underlying this evolution remain unknown. Based on gene expression nonlegume Parasponia andersonii and legume Medicago truncatula , we find that nodules these lineages may share a single origin. Comparison of genomes with those related...
Plant growth-promoting rhizobacteria are involved in altering secondary root (SR) formation, but hitherto there has been no distinction between the different types of SRs upon induction soil biota, and genetic pathways involved. By using plate systems, we studied effects Pseudomonas strains CM11 WCS417 on plant performance with a focus development. Through combination cellular, molecular analyses, investigated type induced inoculation associated specific SR types. was shown to affect...
Legumes host their Rhizobium spp. symbiont in novel root organs called nodules. Nodules originate from differentiated cortical cells that dedifferentiate and subsequently form nodule primordia, a process controlled by cytokinin. A whole-genome duplication has occurred at the of legume Papilionoideae subfamily. We hypothesize gene pairs originating this event are conserved distinct lineages have evolved symbiotic functions. phylogenetic strategy was applied to search for such identify...
The Chinese chestnut (Castanea mollissima) is widely cultivated in China for nut production. This plant also plays an important ecological role afforestation and ecosystem services. To facilitate expand the use of C. mollissima breeding its genetic improvement, we report here whole-genome sequence mollissima.We produced a high-quality assembly genome using Pacific Biosciences single-molecule sequencing. final draft ∼785.53 Mb long, with contig N50 size 944 kb, further annotated 36,479...
Boron is an essential micronutrient for plants. However, boron also toxic to cells at high concentrations, although the mechanism of this stress not known. This study aimed evaluate effect on Malus domestica pollen tube growth and its possible regulatory pathway. Our results show that a concentration inhibited germination led morphological abnormality tubes. Fluorescent labeling coupled with scanning ion-selective electrode technique detected could decrease [Ca2+]c induce disappearance...
Chinese chestnut is an important nut tree around the world. Although types of resources are abundant, resource utilization and protection accessions still very limited. Here, we fingerprinted determined genetic relationships core collections chestnuts using 18 fluorescently labeled SSR markers generated from 146 accessions. Our analyses showed that these tested highly polymorphic, with average allele number (Na) polymorphic information content (PIC) 8.100 0.622 per locus, respectively. Using...
Certain tree species can reach ages of centuries, whereas lifespan like apple are markedly shorter. The latter is caused by negative plant-soil feedback that results in microbiome changes. We hypothesized with a long will be able to avoid such and their root-associated microbiomes similar trees different ages. To test this, we used Chinese chestnut (Castanea mollissima) trees, ranging from 8 830 years old Ming orchard at the Great Wall. Their were analysed using meta-amplicon sequencing...
Superoxide dismutases (SODs) convert the superoxide radical to hydrogen peroxide and molecular oxygen, play crucial roles in plant tolerance oxidative stress. Expression of many genes encoding SODs is promoted response environmental stresses, but exact mechanism such promotion largely unknown. Here, we report that MKK5, a mitogen-activated protein kinase kinase, mediated high light-induced expression two copper/zinc SODs, CSD1 CSD2, was involved adaptation light In light, wild-type...
Abstract Boron (B) is essential for normal plant growth, including pollen tube growth. B deficiency influences various physiological and metabolic processes in plants. However, the underlying mechanism of growth not sufficiently understood. In present research, influence on apple ( Malus domestica ) was studied possible regulatory evaluated. Apple grains were cultured under different concentrations B. Scanning ion‐selective electrode technique, fluorescence labelling Fourier‐transform...
Suitability of plant tissues as food for insects varies from to plant. In lepidopteran insects, fitness is largely dependent on the host-finding ability females. Existing studies have suggested that polyphagous lepidopterans preferentially select certain host species oviposition. However, mechanisms recognition and selection not been fully elucidated. For yellow peach moth Conogethes punctiferalis, we explored effect chestnut cultivar performance addressed plant-volatile-mediated...
A novel 68 kDa laccase was purified from the mycorrhizal fungus Agaricus placomyces by utilizing a procedure that comprised three successive steps of ion exchange chromatography and gel filtration as final step. The monomeric enzyme exhibited N-terminal amino acid sequence DVIGPQAQVTLANQD, which showed only low extent homology to sequences other fungal laccases. optimal temperature for A. 30°C, pH values activity towards substrates 2,7′-azinobis[3-ethylbenzothiazolone-6-sulfonic acid]...
Chinese chestnut is a wildly distributed nut species with importantly economic value. The size and ripening period are mainly desired breeding objectives in chestnut. However, high-density linkage maps quantitative trait loci (QTL) analyses related to traits less than satisfactory, which hinders progress the of Here, single nucleotide polymorphism (SNP)-based map was constructed through genotyping-by-sequencing (GBS) an F1 cross between two widely grown cultivars 'Yanshanzaofeng' 'Guanting...
Abstract Plants are commonly exposed to abiotic stressors, which can affect their growth, productivity, and quality. Previously, the maize transcription factor ZmCCT was shown be involved in photoperiod response, delayed flowering, quantitative resistance Gibberella stalk rot. In this study, we demonstrate that regulate plant responses drought. physically interacted with ZmFra a 1, ZmWIPF2, ZmAux/IAA8, localized cell membrane, cytoplasm, nucleus, respectively, both vitro vivo yeast...
Somatic embryogenesis (SE) is an effective approach of in vitro regeneration that depends on plant cell totipotency. However, largely unknown molecular mechanisms SE woody plants such as Chinese chestnut (Castanea mollissima Blume), limits the development industry. Here, we report MADS-box transcription factor CmAGL11 chestnut. transcripts specifically accumulated globular embryo. Overexpression callus enhanced its capacity, and somatic embryos occurred significantly faster than control....
Chinese chestnut (Castanea mollissima Blume) is native to China and distributes widely in arid semi-arid mountain area with barren soil. As a perennial crop, an alternative food source acts as important commercial nut tree China. Starch the major metabolite nuts, accounting for 46 ~ 64% of dry weight. The accumulation total starch amylopectin showed similar increasing trend during development nut. Amylopectin contributed up 76% content at 80 days after pollination (DAP). increase mainly...
Abstract Legume and rhizobium species can establish a nitrogen-fixing nodule symbiosis. Previous studies have shown that several transcription factors play role in (lateral) root development are also involved development. Chromatin remodeling factors, like key players regulating gene expression. However, not investigated whether chromatin genes essential for Here, we studied the of Medicago (Medicago truncatula) histone deacetylases (MtHDTs) Arabidopsis (Arabidopsis thaliana) orthologs HDTs...
A key role of boron in plants is to cross-link the cell wall pectic polysaccharide rhamnogalacturonan-II (RG-II) through borate diester linkages. Phenylboronic acid (PBA) can form same reversible ester bonds but cannot two molecules, so be used as an antagonist study function boron. This aimed evaluate effect PBA on apple (Malus domestica) pollen tube growth and underlying regulatory mechanism. We observed that caused inhibition germination, led morphological abnormalities. Fluorescent...
Chinese chestnuts ( Castanea mollissima Blume.) contain 12–18 ovules in one ovary, but only ovule develops into a seed, indicating high abortion rate. In this study, the chestnut ‘Huaihuang’ was used to explore possible mechanisms of with respect morphology and proteomics. The microstructure abortive were found be considerably different from those fertile at 20 days after anthesis (20 DAA). had completely formed tissues, such as embryo sac, endosperm. By contrast, ovules, there no sacs, wide...
Abstract Rhizobium nitrogen-fixing nodules are a well-known trait of legumes, but also occur in other plant lineages either with rhizobium or the actinomycete Frankia as microsymbiont. The widely accepted hypothesis is that nodulation evolved independently multiple times, only few losses. However, insight evolutionary trajectory lacking. We conducted comparative studies using Parasponia (Cannabaceae), non-legume able to establish nitrogen fixing rhizobium. This revealed and legumes utilize...
SummaryRetrotransposons are major components of the genomes most eukaryotic organisms and have resulted in introduction desirable traits many crops, including fruit trees. Here, we describe a Ty3-gypsy-like retrotransposon associated with short-catkin mutant Chinese chestnut (Castanea mollissima), resulting catkins that < 20% length normal staminate catkins. A partial sequence retrotransposon, named CmRT1, detected by amplified fragment polymorphism (AFLP) analysis, its complete were...