95 results match your criteria: "South Subtropical Crop Research Institute[Affiliation]"

Change of soluble acid invertase gene () haplotype in hybrid sorghum breeding program in China.

Mol Breed

June 2021

National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081 China.

Article Synopsis
  • Sugar metabolism is essential for plant growth, and invertases are key enzymes that regulate this process and crop yield.
  • Research focused on soluble acid invertase in sweet sorghum revealed significant differences in gene sequences among various sorghum parent lines and hybrid varieties, particularly between B-lines and restore lines.
  • The study found that as sorghum breeding progresses, the haplotype of the invertase gene changes, potentially contributing to yield gains, and shorter gene sequences were observed, indicating enhanced gene efficiency for breeding.
View Article and Find Full Text PDF

The planting area of macadamia in China accounted for more than one third of the world's planted area. The lipid compositions, minor components, and antioxidant capacities of fifteen varieties of macadamia oil (MO) in China were comparatively investigated. All varieties of MO were rich in monounsaturated fatty acids, mainly including oleic acid (61.

View Article and Find Full Text PDF

About one-third of the world's food is lost and wasted each year, along with excessive carbon emission, disposals, and other environmental issues. The rotting of perishable products like fruits and vegetables accounts for the largest percentage of food waste due to their short shelf life. The storage atmosphere (HO, O, CO) acts as a key role in the preservation process and could regulate plants' physiological metabolism and microbial growth.

View Article and Find Full Text PDF

To increase the solubility and the encapsulation of zinc phthalocyanine (ZnPc) photosensitizer for photodynamic therapy (PDT), a positively charged amphiphilic phosphonium chitosan nanomicelle with multi-benzene structure was developed, and its application to PDT was explored. N-acetyl-l-phenylalanine-(4-carboxybutyl) triphenylphosphonium bromide chitosan (CTPB-CS-NAP), a chitosan derivative with tunable amphiphilicity, was synthesized first. ZnPc was encapsulated in CTPB-CS-NAP at the critical micelle concentration (CMC) of 4.

View Article and Find Full Text PDF

Macadamia nuts have high nutritional value and positive health attributes. Changes to the composition and availability of these compounds during roasting contribute to product quality. In this study, changes to the chemical composition of lipids (fatty acids, triglycerides, and free fatty acids) and other phytochemicals were analyzed, and a sensory evaluation was carried out of two major varieties of macadamia nuts planted in China, after roasting.

View Article and Find Full Text PDF

Chitosan-based thermosensitive hydrogels have been widely used in drug delivery and tissue engineering, but their poor bioactivity has limited their further applications. Integral active oyster peptide microspheres (OPM) with an average particle diameter of 3.9 μm were prepared with high encapsulation efficiency (72.

View Article and Find Full Text PDF

A novel pH/glutathione (GSH) multi-responsive chitosan nanoparticles (NPs) material has been successfully designed and prepared by a self-assembly/self-crosslinking method for photodynamic therapy (PDT), which overcomes the shortcomings of traditional photosensitizer carriers, such as poor chemical stability, low loading efficiency and single-responsive photosensitizer release. Amphiphilic sulfhydryl chitosan (SA-CS-NAC) is first prepared by modifying chitosan (CS) with stearic acid (SA) and N-acetyl-L-cysteine (NAC), and then subject to self-assembly and self-crosslinking in the presence of photosensitizer, indocyanine green (ICG), to form the ICG-loaded amphiphilic sulfhydryl chitosan nanoparticles (SA-CS-NAC@ICG NPs). The ICG entrapment efficiency and loading efficiency of the NPs are found to be 95.

View Article and Find Full Text PDF

Crop productivity and soil health are limited by organic carbon (OC), however, the variations in the mechanisms of SOC preservation in a complete soil profile subjected to long-term fertilization remains unclear. The objective of the study was to examined the content and profile distribution of the distinctive SOC protection mechanisms on a complete profile (0-100 cm) of Eumorthic Anthrosols in Northwest China after 23 years of chemical and manure fertilization. The soil was fractionated by combined physical-chemical and density floatation techniques.

View Article and Find Full Text PDF

Plant grafting is a sequential wound healing process. However, whether wounding induces a different jasmonic acid (JA) response within half a day (12 h) after grafting or non-grafting remains unclear. Using the tomato hypocotyl grafting method, we show that grafting alleviates the asymmetrical accumulation of JA and jasmonic acid isoleucine conjugate (JA-Ile) in scion and rootstock caused by wounding, and from 2 h after tomato micrografting, grafting obviously restored the level of JA-Ile in the scion and rootstock.

View Article and Find Full Text PDF

First Report of subsp. Causing Bacterial Leaf Wilt of Sugarcane in China.

Plant Dis

October 2020

Fujian Agriculture and Forestry University, Sugarcane Research Institute, 15 Shang Xia Dian Rd, Cangshan District, Fuzhou, Fujian, China, 350002;

Article Synopsis
  • The pathogen Pantoea stewartii subsp. stewartii (Pss), known for causing bacterial wilt in corn, was observed infecting sugarcane in Zhanjiang, China, manifesting as leaf blade bleaching and necrotic lesions.
  • Leaf samples from affected sugarcane cultivars were collected and analyzed using nested PCR, confirming the presence of Pss through high nucleotide identity with known strains.
  • The study involved isolating a specific colony, PSCN1, from a sugarcane cultivar and verifying its identity through additional PCR methods aimed at the 16S rRNA gene.
View Article and Find Full Text PDF

Mesoporous silica nanoparticles (MSNs) of 50 nm diameter particle size with a pore size of approximately 14.7 nm were functionalized with amino groups (Am-MSNs) and the effects of exposure to these positively charged Am-MSNs on each of the life cycle stages of Arabidopsis thaliana were investigated. After growth in half strength MS medium amended with Am-MSNs (0-100 μg/mL) for 7 and 14 days, seed germination rate and seedling growth were significantly increased compared with untreated controls.

View Article and Find Full Text PDF

Nutritional component changes in Xiangfen 1 banana at different developmental stages.

Food Funct

September 2020

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, China. and South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China.

Banana is an essential food resource in many tropical and subtropical countries. Metabolites in banana greatly influence its nutritional value and flavor. However, metabolic changes that occur in different developmental stages have not been comprehensively evaluated.

View Article and Find Full Text PDF

Antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana.

J Appl Microbiol

January 2021

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China.

Aim: Research on prevention and cure of banana wilt is important to ensure the healthy development of the banana industry. In this study, antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana was investigated.

View Article and Find Full Text PDF

Aiming at high drug loading and controlled drug release in chitosan nanocarriers, this work constructed the photothermal sensitive carboxymethyl chitosan nanospheres carrier by introducing controllable heat-sensitive groups into carboxymethyl chitosan molecules. The combination therapy system based on photothermal-chemotherapy was established by virtue of the good photothermal conversion effect of ICG and the high chemotherapy efficiency of DOX. On the one hand, the carrier owned high drug loading and improved the stability of coated-drug.

View Article and Find Full Text PDF

The complete genomic sequence of a putative novel member of the family Secoviridae was determined by high-throughput sequencing of a pineapple accession obtained from the National Plant Germplasm Repository in Hilo, Hawaii. The predicted genome of the putative virus was composed of two RNA molecules of 6,128 and 4,161 nucleotides in length, excluding the poly-A tails. Each genome segment contained one large open reading frame (ORF) that shares homology and phylogenetic identity with members of the family Secoviridae.

View Article and Find Full Text PDF

Evolution and expression analysis of the sorghum ubiquitin-conjugating enzyme family.

Funct Plant Biol

February 2019

Key Laboratory of Tropical Fruit Biology (Ministry of Agriculture), South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang 524091, China.

Ubiquitin-conjugating enzymes (UBCs), which catalyse the transfer of ubiquitin to substrate or E3 ligases, are key enzymes in ubiquitination modifications of target proteins. Current knowledge regarding the sorghum (Sorghum bicolor (L.) Moench) ubiquitin-conjugating enzyme (SbUBC) family remains very limited.

View Article and Find Full Text PDF

Auxin efflux carriers, MiPINs, are involved in adventitious root formation of mango cotyledon segments.

Plant Physiol Biochem

May 2020

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, 524091, China.

Adventitious roots form only at the proximal cut surface (PCS) but not at the distal cut surface (DCS) of mango cotyledon segments. In this study, mango embryos treated with indole-3-butyric acid (IBA) showed significantly increased adventitious root formation, while those treated with 2, 3, 5-triiodobenzoic acid (TIBA) demonstrated complete inhibition of adventitious rooting. Mango embryos treated with auxin influx inhibitors demonstrated lower inhibition of adventitious roots than those treated with TIBA.

View Article and Find Full Text PDF

Fermentation optimization and disease suppression ability of a Streptomyces ma. FS-4 from banana rhizosphere soil.

BMC Microbiol

January 2020

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, Chinese Academy of Tropical Agricultural Science, South Subtropical Crop Research Institute, Zhanjiang, 524091, China.

Background: Fusarium wilt of banana is one of the most destructive diseases in banana-growing regions worldwide. Soil-borne diseases and soil microbial communities are closely related. The screening of antagonistic bacteria from soil microorganisms in areas with Fusarium wilt of banana is of great practical significance for controlling this disease.

View Article and Find Full Text PDF

DNA methylation changes can occur in some loci during callus culture, resulting in somaclonal variations (SVs). In the present study, we applied whole genome bisulfite sequencing to analyze context-specific DNA methylation changes in the pineapple genome between the cutting seedings and 5 SV plants. In general, SV plants exhibited methylation patterns analogous to those of cutting seedlings (CK).

View Article and Find Full Text PDF

Nanoapplication of a Resistance Inducer to Reduce Disease in Pineapple ( L.).

Front Plant Sci

October 2019

School of Life and Environmental Sciences, Deakin University, Geelong, VIC, Australia.

Treatment of plants with a variety of abiotic and biotic inducers causes induced resistance to pathogen attack. In this study, the effect of four resistance inducers on plant diseases caused by was screened initially by using lupin, a susceptible model plant. Lupin pretreated with 0.

View Article and Find Full Text PDF

Whole-genome sequences of four EMS (ethyl methanesulfonate)-induced eggplant mutants were analyzed to identify genome-wide mutations. In total, 173.01 GB of paired-end reads were obtained for four EMS-induced mutants and (WT) wild type and 1,076,010 SNPs (single nucleotide polymorphisms) and 183,421 indels were identified.

View Article and Find Full Text PDF

Rice FLUORESCENT1 Is Involved in the Regulation of Chlorophyll.

Plant Cell Physiol

October 2019

Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China.

Chlorophyll biosynthesis plays essential roles in photosynthesis and plant growth in response to environmental conditions. The accumulation of excess chlorophyll biosynthesis intermediates under light results in the production of reactive oxygen species and oxidative stress. In this study, we identified a rice (Oryza sativa) mutant, oxidation under photoperiod (oxp), that displayed photobleached lesions on its leaves, reduced growth and decreased chlorophyll content during light/dark cycles or following a dark-to-light transition.

View Article and Find Full Text PDF

Genome-Wide Identification and Analysis of U-Box E3 Ubiquitin⁻Protein Ligase Gene Family in Banana.

Int J Mol Sci

December 2018

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang 524091, China.

The U-box gene family is a family of genes which encode U-box domain-containing proteins. However, little is known about U-box genes in banana (). In this study, 91 U-box genes were identified in banana based on its genome sequence.

View Article and Find Full Text PDF

Extraction is the most important step in the purification of bioactive compounds from natural products. This study introduces a simple online extraction strategy coupled with high-speed counter-current chromatography for efficient extraction and purification of bioactive components from solid natural products. For online extraction strategy, 1.

View Article and Find Full Text PDF

The 14-3-3 protein HbGF14a interacts with a RING zinc finger protein to regulate expression of the rubber transferase gene in Hevea brasiliensis.

J Exp Bot

April 2018

Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China.

Hevea brasiliensis is a key commercial source of natural rubber (cis 1,4-polyisoprene). In H. brasiliensis, rubber transferase is responsible for cis-1,4-polymerization of isoprene units from isopentenyl diphosphate and thus affects the yield of rubber.

View Article and Find Full Text PDF