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

Effect of different oleogelators on physicochemical properties, oxidative stability and astaxanthin delivery of macadamia oil-based oleogels.

Food Res Int

November 2024

South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs, Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, 524091, China. Electronic address:

Oleogels can be formed using different types of oleogelator, which lead to different end properties. In this study, four kinds of oleogelators, rice bran wax (RBW), monoglyceride stearate (MG), beeswax (BW), and a mixture of β-sitosterol and γ-oryzanol (SO) were used to prepare astaxanthin-loaded macadamia oil-based oleogels. Fourier transform infrared spectroscopy, polarized light microscopy, X-ray diffraction, differential scanning calorimetry, and dynamic shear rheometry were then used to evaluate the effects of the different oleogelators and astaxanthin on the physicochemical properties of the oleogels.

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Hyperlipidemia, characterized by an abnormal lipid metabolism, is related to multiple cardiovascular diseases that pose challenges to global public health. Macadamia oil (MO), rich in monounsaturated fatty acids (around 80%), is regarded as a functional oil used to regulate lipid accumulation. Nonetheless, the lipid-lowering mechanism of MO is still unknown.

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Article Synopsis
  • Pineapple crops in Guangxi Province, China, suffered from a disease affecting heart leaves, with a disease incidence of 20% to 30% across 10,500 plants, leading to the collapse and death of approximately 800 plants.
  • Diseased plants exhibited water-soaked lesions and soft rot, prompting researchers to disinfect and analyze the infected tissue, which resulted in the recovery of mycelium colonies consistent with the description of Phytophthora.
  • Molecular identification techniques, including PCR amplification of specific DNA regions, confirmed the presence of two strains of Phytophthora, with sequences deposited in GenBank for further reference.
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Integrated Analysis of Metabolomics, Flavoromics, and Transcriptomics for Evaluating New Varieties of Lour.

Plants (Basel)

August 2024

State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.

Lour. () is the original plant of the medicinal and culinary spice Amomi Fructus (Sharen) and is an important economic crop in the Lingnan region of China. During the cultivation and production of , prolonged reliance on single asexual reproduction has exacerbated the degradation of its varieties, leading to inconsistent yields and quality.

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The pineapple reference genome: Telomere-to-telomere assembly, manually curated annotation, and comparative analysis.

J Integr Plant Biol

October 2024

National Key Laboratory for Tropical Crop Breeding, Laboratory of Crop Gene Resources and Germplasm Enhancement in South China, Ministry of Agriculture and Rural Affairs, Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.

Pineapple is the third most crucial tropical fruit worldwide and available in five varieties. Genomes of different pineapple varieties have been released to date; however, none of them are complete, with all exhibiting substantial gaps and representing only two of the five pineapple varieties. This significantly hinders the advancement of pineapple breeding efforts.

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Genome-wide association study of the loci and candidate genes associated with agronomic traits in Amomum villosum Lour.

PLoS One

August 2024

Chinese Academy of Tropical Agricultural Science/Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs, Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, South Subtropical Crop Research Institute, Zhanjiang, Guangdong, China.

Amomum villosum Lour. (A. villosum) is a valuable herbaceous plant that produces the famous traditional Chinese medicine Amori Fructus.

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Physicochemical Characterization and Biological Properties of Polysaccharides from Fructus.

Polymers (Basel)

June 2024

State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.

Polysaccharides (AOPs) were extracted from fructus using three distinct methods: hot water (AOP-HW), hydrochloric acid (AOP-AC), and NaOH/NaBH4 (AOP-AL). This study systematically investigated and compared the physicochemical properties, structural characteristics, antioxidant activities, and α-amylase inhibitory activities of the extracted polysaccharides. Among the three AOPs, AOP-AC exhibited the highest yield (13.

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Grain filling is critical for determining yield and quality, raising the question of whether central coordinators exist to facilitate the uptake and storage of various substances from maternal to filial tissues. The duplicate NAC transcription factors ZmNAC128 and ZmNAC130 could potentially serve as central coordinators. By analyzing differentially expressed genes from mutants across different genetic backgrounds and growing years, we identified 243 highly and differentially expressed genes (hdEGs) as the core target genes.

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Editorial: Microbial interaction with banana: mechanisms, symbiosis, and integrated diseases control.

Front Microbiol

April 2024

Yunnan Key Laboratory of Green Prevention and Control of Agricultural Transboundary Pests, The Ministry of Agriculture and Rural Affairs International Joint Research Centre for Agriculture, The Ministry of Agriculture and Rural Affairs Key Laboratory for Prevention and Control of Biological Invasions, Agricultural Environment and Resource Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China.

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Chitosan‑iodine complexes: Preparation, characterization, and antibacterial activity.

Int J Biol Macromol

March 2024

Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China.

Bacterial infections have always been a major threat to public health, and the development of effective antibacterial substances from natural polymers is crucial. 2-Aminoisonicotinic acid (AN) was grafted onto chitosan by 1-ethyl-(3-dimethylaminopropyl)carbodiimide-mediated coupling reactions, and then modified chitosan‑iodine (CSAN-I) complexes were prepared by solvent-assisted grinding. The samples were characterized using ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, proton nuclear magnetic resonance spectroscopy, and X-ray diffraction, confirming that CSAN-I complexes had been successfully prepared.

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China's population is showing the characteristics of "fewer children" and "aging", which will have a long-term and far-reaching impact on the food and nutritional needs of China and the world. In this paper, adult equivalent scale () variables representing the household population structure were introduced into the energy intake model to quantify the impact of population structure changes on energy intake and reveal the characteristics of energy intake changes in the life cycle of Chinese residents. It is found that the change in the population structure has a significant impact on the energy intake of urban households in China, and the elasticity is 0.

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Exogenous ethylene is commonly utilized to initiate flower induction in pineapple ( (L.) Merr.).

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Genome-Wide Identification and Characterization of Gibberellic Acid-Stimulated Arabidopsis Gene Family in Pineapple ().

Int J Mol Sci

December 2023

Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China.

The gibberellic acid-stimulated Arabidopsis (GASA) gene family plays a crucial role in growth, development, and stress response, and it is specific to plants. This gene family has been extensively studied in various plant species, and its functional role in pineapple has yet to be characterized. In this study, 15 genes were identified in pineapple through a genome-wide scan and categorized into three major branches based on a phylogenetic tree.

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Integration of Metabolomics and Transcriptomics to Explore Dynamic Alterations in Fruit Color and Quality in 'Comte de Paris' Pineapples during Ripening Processes.

Int J Mol Sci

November 2023

Hainan Key Laboratory of Storage & Processing of Fruits and Vegetables, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China.

Pineapple color yellowing and quality promotion gradually manifest as pineapple fruit ripening progresses. To understand the molecular mechanism underlying yellowing in pineapples during ripening, coupled with alterations in fruit quality, comprehensive metabolome and transcriptome investigations were carried out. These investigations were conducted using pulp samples collected at three distinct stages of maturity: young fruit (YF), mature fruit (MF), and fully mature fruit (FMF).

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Pineapple (Ananas comosus) is an economically important tropical fruit in Guangdong Province, China. The plants were seriously infected with a year-round leaf spot disease. During September to November 2022, the leaf spot disease of pineapple was found in Xuwen city and Zhanjiang city of Guangdong Province.

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The widespread prevalence of infectious bacteria is one of the greatest threats to public health, and consequently, there is an urgent need for efficient and broad-spectrum antibacterial materials that are antibiotic-free. In this study, 2-pyridinecarboxaldehyde (PCA) was grafted onto chitosan (CS) and the modified CS coordinated with silver ions to prepare PCA-CS-Ag complexes with antibacterial activity. To obtain complexes with a high silver content, the preparation process was optimized using single-factor experiments and response surface methodology.

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In this study, macadamia oil-based oleogels were prepared using monoglyceride stearate (MG) as a gelator with a low critical gelation concentration (3.0 wt%). The physical properties of the oleogels were evaluated by polarized light microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, texture and rheological analysis.

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Enhanced soil P immobilization and microbial biomass P by application of biochar modified with eggshell.

J Environ Manage

November 2023

School of Agriculture, Sun Yat-sen University, Guangzhou, Guangdong, 510275, PR China. Electronic address:

Phosphate fertilizers have been excessively applied in agricultural production, bringing the risk of phosphorus (P) loss to nearby river systems and low utilization efficiency. In this study, eggshell-modified biochars prepared by pyrolysis of eggshell and corn straw or pomelo peel were applied to soil for enhancing P immobilization and utilization. The structure and properties of modified biochars before and after P adsorption were analyzed using the Brunauer-Emmett-Teller (BET) nitrogen adsorption method, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscope (SEM).

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Preparation and evaluation of a novel chlorine dioxide preservative based on citric acid grafted carboxymethyl chitosan.

Int J Biol Macromol

July 2023

Key Laboratory of Tropical Fruit and Vegetable Cold-chain of Hainan Province, Institute of Agro-products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China; Sanya Institute of Hainan Academy of Agricultural Sciences, Sanya 572025, China; Key Laboratory of Genetic Resources Evaluation and Utilization of Tropical Fruits and Vegetables (Co-construction by Ministry of Province), Ministry of Agriculture and Rural Affairs, Haikou 571100, China. Electronic address:

Instrument-free chlorine dioxide (ClO) preservative for fruit and vegetable has gained great attention due to its convenience and safety. In this study, a series of carboxymethyl chitosan (CMC) with citric acid (CA) substituents were synthesized, characterized, and further used to prepare a novel ClO slow-releasing preservative for longan. UV-Vis and FT-IR spectra revealed that CMC-CA#1-3 were successfully prepared.

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Macadamia oil is rich in monounsaturated fatty acids, especially a high level of palmitoleic acid, which may have beneficial health effects by lowering blood lipid levels. In our study, the hypolipidemic effects of macadamia oil and its potential mechanisms of action were investigated using a combination of in vitro and in vivo assays. The results showed that macadamia oil significantly reduced lipid accumulation, and improved triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) levels in oleic acid-induced high-fat HepG2 cells.

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Nutrient controlled release performance of bio-based coated fertilizer enhanced by synergistic effects of liquefied starch and siloxane.

Int J Biol Macromol

May 2023

Hainan Key Laboratory of Tropical Crop Nutrition, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, PR China. Electronic address:

The porous structure and hydrophilicity of coating shells affect the nutrient controlled-release performance of castor oil-based (CO) coated fertilizers. In order to solve these problems, in this study, the castor oil-based polyurethane (PCU) coating material was modified with liquefied starch polyol (LS) and siloxane, and a new coating material with cross-linked network structure and hydrophobic surface was synthesized, and used it to prepare the coated controlled-release urea (SSPCU). The results demonstrated that the cross-linked network formed by LS and CO improved the density and reduced the pores on the surface of the coating shells.

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Simulation of Photosynthetic Quantum Efficiency and Energy Distribution Analysis Reveals Differential Drought Response Strategies in Two (Drought-Resistant and -Susceptible) Sugarcane Cultivars.

Plants (Basel)

February 2023

South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang Experimental and Observation Station for National Long-Term Agricultural Green Development, Zhanjiang 524091, China.

Selections of drought-tolerant cultivars and drought-stress diagnosis are important for sugarcane production under seasonal drought, which becomes a crucial factor causing sugarcane yield reduction. The main objective of this study was to investigate the differential drought-response strategies of drought-resistant ('ROC22') and -susceptible ('ROC16') sugarcane cultivars via photosynthetic quantum efficiency () simulation and analyze photosystem energy distribution. Five experiments were conducted to measure chlorophyll fluorescence parameters under different photothermal and natural drought conditions.

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Sugarcane is the major sugar-producing crop worldwide, and hybrid F populations are the primary populations used in breeding. Challenged by the sugarcane genome's complexity and the sucrose yield's quantitative nature, phenotypic selection is still the most commonly used approach for high-sucrose yield sugarcane breeding. In this study, a hybrid F population containing 135 hybrids was constructed and evaluated for 11 traits (sucrose yield (SY) and its related traits) in a randomized complete-block design during two consecutive growing seasons.

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Bacterial wilt is a soil-borne disease that represents ubiquitous threat to crops. The whole-root transcriptomes and metabolomes of bacterial wilt-resistant eggplant were studied to understand the response of eggplant to bacterial wilt. A total of 2,896 differentially expressed genes and 63 differences in metabolites were identified after inoculation with .

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Pineapple ( L.) is an important fruit crop in tropical regions, and it requires efficient sugar allocation during fruit development. Sugars Will Eventually be Exported Transporters (SWEETs) are a group of novel sugar transporters which play critical roles in seed and fruit development.

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