Effects of Changes in Pectin Constitution on Optical Properties and Firmness of Peach Flesh during Storage.

Understanding the fundamental light-sample interaction process is a crucial step toward the development of vibrational spectroscopy to determine fruit texture (i.e., firmness).

Transcriptome sequencing of garlic reveals key genes related to the heat stress response.

With global warming, heat stress has become an important factor that seriously affects crop yield and quality. Therefore, understanding plant responses to heat stress is important for agricultural practice, but the molecular mechanism of high-temperature tolerance in garlic remains unclear. In this study, 'Xusuan No.

A comparative study on the structure, physical property and halochromic ability of shrimp freshness indicators produced from nine varieties of steamed purple sweet potato.

Nine varieties of purple sweet potato were steamed and used for the production of shrimp freshness indicators. The impact of purple sweet potato's variety on the structure, physical property and halochromic ability of indicators was determined. Results showed different varieties of purple sweet potato had different starch, crude fiber, pectin, protein, fat and total anthocyanin contents.

Integrated Transcriptome and Metabolome Analyses Reveal Details of the Molecular Regulation of Resistance to Stem Nematode in Sweet Potato.

Stem nematode disease can seriously reduce the yield of sweet potato ( (L.) Lam). To explore resistance mechanism to stem nematode in sweet potato, transcriptomes and metabolomes were sequenced and compared between two sweet potato cultivars, the resistant Zhenghong 22 and susceptible Longshu 9, at different times after stem nematode infection.

Transcriptome Characterization and Gene Changes Induced by in Sweetpotato Roots.

Sweetpotato () is an important root crop that is infected by in both seedling and root stages, causing irregular black or brown disease spots and root rot and canker. This study aims to use RNA sequencing technology to investigate the dynamic changes in root transcriptome profiles between control check and roots at 6 h, 24 h, 3 days, and 5 days post-inoculation (hpi/dpi) with . The results showed that the defense reaction of sweetpotato could be divided into an early step (6 and 24 hpi) without symptoms and a late step to respond to infection (3 and 5 dpi).

Phylogeography of Chinese cereal cyst nematodes sheds lights on their origin and dispersal.

Reconstructing the dispersal routes of pathogens can help identify the key drivers of their evolution and provides a basis for disease control. The cereal cyst nematode is one of the major nematode pests on cereals that can cause 10%-90% crop yield losses worldwide. Through extensive sampling on wheat and grasses, the Chinese population of is widely identified in virtually all wheat growing regions in China, with H1 being the predominant haplotype.

Development of a dual RT-RPA detection for Sweet potato feathery mottle virus and Sweet potato chlorotic stuntvirus.

The disease co-infected by Sweet potato feathery mottle virus (SPFMV) and Sweet potato chlorotic stunt virus (SPCSV) is devastating in sweet potato, as it would give rise to the serious losses in both production and quality. Consequently, it is conducive for preventing and controlling this disease to detect these two viruses accurately and timely. Here we developed and optimized a dual reverse transcription recombinase polymerase amplification (RT-RPA) for rapid and accurate detection of SPFMV and SPCSV.

Impact of purple sweet potato ( L.) polysaccharides on the fecal metabolome in a murine colitis model.

Purple sweet potato polysaccharides (PSPP) play an important role in regulating the gut microbiota, modulating intestinal immunity and ameliorating colonic inflammation. In this study, the impact of two PSPPs (PSWP-I and PSAP-I) on the metabolomic profiling of feces from dextran sulfate sodium (DSS)-induced colitis mice was evaluated by ultra-high performance liquid chromatography coupled with triple time-of-flight tandem mass spectrometry (UPLC-Triple-TOF-MS/MS). Results indicated that there were twenty-five metabolites with significant changes and four remarkable metabolic pathways, , cutin, suberine and wax biosynthesis, biosynthesis of unsaturated fatty acids, fatty acid biosynthesis, and steroid hormone biosynthesis.

Anti-inflammatory activity of a water-soluble polysaccharide from the roots of purple sweet potato.

In this study, a water-soluble polysaccharide was isolated from purple sweet potato roots. The and anti-inflammatory effects of the polysaccharide were evaluated by lipopolysaccharide (LPS)-induced inflammatory RAW264.7 macrophages and mice, respectively.

Anti-inflammatory properties and gut microbiota modulation of an alkali-soluble polysaccharide from purple sweet potato in DSS-induced colitis mice.

In this study, the potential effects of a novel alkali-soluble polysaccharide (ASPP) from purple sweet potato on colonic histopathology, inflammation and microbiota composition in dextran sulfate sodium (DSS)-induced colitis mice were evaluated. The results indicated that ASPP restored the immune organ indices, increased colon length, improved colonic histopathology in colitis mice as well as inhibited the levels of pro-inflammatory cytokines (IL-1β, IL-6 and TNF-α) in colonic tissue and serum. Moreover, 16S rRNA phylogenetic sequencing revealed that ASPP ameliorated the compositions and functions of gut microbiota in DSS-induced colitis mice.

Structural characterization and anti-inflammatory activity of alkali-soluble polysaccharides from purple sweet potato.

In this study, the structural characterization and anti-inflammation effect of dilute alkali-soluble polysaccharides from purple sweet potato were investigated. Three fractions (F-1, F-2 and F-3) were obtained by purifying crude polysaccharides on DEAE-52 cellulose column. The main fraction (F-1) was further purified on Sephadex G-200 column to afford purified alkali-soluble sweet potato polysaccharide (ASPP).

Transcript profiling reveals an important role of cell wall remodeling and hormone signaling under salt stress in garlic.

Salt stress is one of the environmental factors that evidently limit plant growth and yield. Despite the fact that understanding plant response to salt stress is important to agricultural practice, the molecular mechanisms underlying salt tolerance in garlic remain unclear. In this study, garlic seedlings were exposed to 200 mM NaCl stress for 0, 1, 4, and 12 h, respectively.

Immune-enhancing effects of polysaccharides from purple sweet potato.

Immune-enhancing effects of three kinds of purple sweet potato polysaccharides (PSPPs) including water-soluble polysaccharide (WSP), dilute alkali-soluble polysaccharide (DASP) and concentrated alkali-soluble polysaccharide (CASP) were evaluated. Scanning electron microscope analysis showed that all PSPPs could stimulate the formation of microvilli-like structures in cellular surfaces, which was possibly related to activation of macrophages. Neutral red uptake assay showed that PSPPs could increase the phagocytic activity of cells.

OsNDUFA9 encoding a mitochondrial complex I subunit is essential for embryo development and starch synthesis in rice.

Loss of function of a mitochondrial complex I subunit (OsNDUFA9) causes abnormal embryo development and affects starch synthesis by altering the expression of starch synthesis-related genes and proteins. Proton-pumping NADH: ubiquinone oxidoreductase (also called complex I) is thought to be the largest and most complicated enzyme of the mitochondrial respiratory chain. Mutations of complex I subunits have been revealed to link with a number of growth inhibitions in plants.

Melatonin-Stimulated Triacylglycerol Breakdown and Energy Turnover under Salinity Stress Contributes to the Maintenance of Plasma Membrane H-ATPase Activity and K/Na Homeostasis in Sweet Potato.

Melatonin (MT) is a multifunctional molecule in animals and plants and is involved in defense against salinity stress in various plant species. In this study, MT pretreatment was simultaneously applied to the roots and leaves of sweet potato seedlings [ (L.) Lam.