Engineered Nanomaterials Suppress the Soft Rot Disease () and Slow Down the Loss of Nutrient in Sweet Potato.

About 45% of the world's fruit and vegetables are wasted, resulting in postharvest losses and contributing to economic losses ranging from $10 billion to $100 billion worldwide. Soft rot disease caused by leads to postharvest storage losses of sweet potatoes. Nanoscience stands as a new tool in our arsenal against these mounting challenges that will restrict efforts to achieve and maintain global food security.

Targeting of SPCSV-RNase3 via CRISPR-Cas13 confers resistance against sweet potato virus disease.

Sweet potato (Ipomoea batatas) is one of the most important crops in the world, and its production rate is mainly decreased by the sweet potato virus disease (SPVD) caused by the co-infection of sweet potato chlorotic stunt virus (SPCSV) and sweet potato feathery mottle virus. However, methods for improving SPVD resistance have not been established. Thus, this study aimed to enhance SPVD resistance by targeting one of its important pathogenesis-related factors (i.

The sweetpotato GIGANTEA gene promoter is co-regulated by phytohormones and abiotic stresses in Arabidopsis thaliana.

GIGANTEA (GI) is known to play significant roles in various molecular pathways. Nevertheless, the underlying mechanism of the transcriptional regulation of GI remains obscure in sweetpotato. In the present study, a 1518-bp promoter sequence was obtained from the Ipomoea batatas GIGANTEA (IbGI) gene, and several potential cis-elements responsive to light, phytohormones and abiotic stresses were identified by in silico analysis.

Genome-Wide Identification of Transcription Factors Family in Sweet Potato Reveals Significant Roles of miR319-Targeted TCPs in Leaf Anatomical Morphology.

Plant-specific TCP transcription factors play vital roles in the controlling of growth, development, and the stress response processes. Extensive researches have been carried out in numerous species, however, there hasn't been any information available about genes in sweet potato ( L.).

A single amino acid mutant in the EAR motif of IbMYB44.2 reduced the inhibition of anthocyanin accumulation in the purple-fleshed sweetpotato.

Purple-fleshed sweetpotato (Ipomoea batatas（L.）Lam.) is rich in anthocyanins.

Transcriptomic and Metabolic Profiling of High-Temperature Treated Storage Roots Reveals the Mechanism of Saccharification in Sweetpotato ( (L.) Lam.).

The saccharification of sweetpotato storage roots is a common phenomenon in the cooking process, which determines the edible quality of table use sweetpotato. In the present study, two high saccharified sweetpotato cultivars (Y25, Z13) and one low saccharified cultivar (X27) in two growth periods (S1, S2) were selected as materials to reveal the molecular mechanism of sweetpotato saccharification treated at high temperature by transcriptome sequencing and non-targeted metabolome determination. The results showed that the comprehensive taste score, sweetness, maltose content and starch change of X27 after steaming were significantly lower than those of Y25 and Z13.

Mode of action and efficacy of quinolinic acid for the control of Ceratocystis fimbriata on sweet potato.

Background: Ceratocystis fimbriata is a hazardous fungal pathogen able to cause black rot disease on sweet potato. The management of C. fimbriata strongly relies on the use of toxic fungicides, and there is a lack of efficient alternative strategies.

Research progress of plant cytogenetics in Jiangsu province.

Cytogenetics was established based on the "Chromosome theory of inheritance", proposed by Boveri and Sutton and evidenced by Morgan's lab in early stage of the 20 centrary. With rapid development of related research areas, especially molecular genetics, cytogenetics developed from traditional into a new era, molecular cytogenetics in late 1960s. Featured by an established technique named DNA in situ hybridization (ISH), molecular cytogenetics has been applied in various research areas.

Effects of continuous cropping of sweet potatoes on the bacterial community structure in rhizospheric soil.

Background: Continuous cropping obstacles from sweet potatoes are widespread, which seriously reduce the yield and quality, causing certain economic losses. Bacteria of rhizospheric soil are the richest and are associated with obstacles to continuous cropping. However, few studies have examined how continuous sweet potato cropping affects the rhizospheric soil bacterial community structure.

A nuclear-localized cysteine desulfhydrase plays a role in fruit ripening in tomato.

Hydrogen sulfide (HS) is a gaseous signaling molecule that plays multiple roles in plant development. However, whether endogenous HS plays a role in fruit ripening in tomato is still unknown. In this study, we show that the HS-producing enzyme L-cysteine desulfhydrase SlLCD1 localizes to the nucleus.

Comparative transcriptome analysis reveals candidate genes involved in anthocyanin biosynthesis in sweetpotato (Ipomoea batatas L.).

Sweetpotato [Ipomoea batatas (L.) Lam] is an economically important crop for fresh and processed consumption and is widely cultivated worldwide, especially in China. Various sweetpotato cultivars with different storage root colors are presently available.

Identification of Shaker K channel family members in sweetpotato and functional exploration of IbAKT1.

The Shaker K channel family plays a vital role in potassium absorption and stress resistance in plants. However little information on the genes family is available about sweetpotato. In the present study, eleven sweetpotato Shaker K channel genes were identified and classified into five groups based on phylogenetic relationships, conserved motifs, and gene structure analyses.

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.

IbERF71, with IbMYB340 and IbbHLH2, coregulates anthocyanin accumulation by binding to the IbANS1 promoter in purple-fleshed sweet potato (Ipomoea batatas L.).

The transcription factor (TF) IbERF71 forms a novel complex, IbERF71-IbMYB340-IbbHLH2, to coregulate anthocyanin biosynthesis by binding to the IbANS1 promoter in purple-fleshed sweet potatoes. Purple-fleshed sweet potato (Ipomoea batatas L.) is very popular because of its abundant anthocyanins, which are natural pigments with multiple physiological functions.

Overexpression of phosphatidylserine synthase affords cellular Na homeostasis and salt tolerance by activating plasma membrane Na/H antiport activity in sweet potato roots.

Phosphatidylserine synthase (PSS)-mediated phosphatidylserine (PS) synthesis is crucial for plant development. However, little is known about the contribution of PSS to Na homeostasis regulation and salt tolerance in plants. Here, we cloned the gene, which encodes an ortholog of , from sweet potato ( (L.

RNA-sequencing analysis revealed genes associated drought stress responses of different durations in hexaploid sweet potato.

Purple-fleshed sweet potato (PFSP) is an important food crop, as it is a rich source of nutrients and anthocyanin pigments. Drought has become a major threat to sustainable sweetpotato production, resulting in huge yield losses. Therefore, the present study was conducted to identify drought stress-responsive genes using next-generation (NGS) and third-generation sequencing (TGS) techniques.

Comparative Chromosomal Localization of 45S and 5S rDNA Sites in 76 Purple-Fleshed Sweet Potato Cultivars.

In recent years, the purple-fleshed sweet potato has attracted more attention because of its high nutritional value. The cytogenetics of this crop is relatively unexplored, limiting our knowledge on its genetic diversity. Therefore, we conducted cytogenetic analysis of 76 purple-fleshed sweet potato cultivars to analyze the chromosome structure and distribution of 45S and 5S rDNA.

Chilling and Heat Stress-Induced Physiological Changes and MicroRNA-Related Mechanism in Sweetpotato ( L.).

Sweetpotato ( (L.) Lam.) is an important industrial and food crop.

MYB44 competitively inhibits the formation of the MYB340-bHLH2-NAC56 complex to regulate anthocyanin biosynthesis in purple-fleshed sweet potato.

Background: Anthocyanins, which have important biological functions and have a beneficial effect on human health, notably account for pigmentation in purple-fleshed sweet potato tuberous roots. Individual regulatory factors of anthocyanin biosynthesis have been identified; however, the regulatory network of anthocyanin biosynthesis in purple-fleshed sweet potato is unclear.

Results: We functionally determined that IbMYB340 cotransformed with IbbHLH2 in tobacco and strawberry receptacles induced anthocyanin accumulation, and the addition of IbNAC56a or IbNAC56b caused increased pigmentation.

Hydrogen Sulfide Maintained the Good Appearance and Nutrition in Post-harvest Tomato Fruits by Antagonizing the Effect of Ethylene.

Hydrogen sulfide (HS) could act as a versatile signaling molecule in delaying fruit ripening and senescence. Ethylene (CH) also plays a key role in climacteric fruit ripening, but little attention has been given to its interaction with HS in modulating fruit ripening and senescence. To study the role of HS treatment on the fruit quality and nutrient metabolism, tomato fruits at white mature stage were treated with ethylene and ethylene plus HS.

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.

Transcriptome sequencing and whole genome expression profiling of hexaploid sweetpotato under salt stress.

Background: Purple-fleshed sweetpotato (PFSP) is one of the most important crops in the word which helps to bridge the food gap and contribute to solve the malnutrition problem especially in developing countries. Salt stress is seriously limiting its production and distribution. Due to lacking of reference genome, transcriptome sequencing is offering a rapid approach for crop improvement with promising agronomic traits and stress adaptability.

IbINH positively regulates drought stress tolerance in sweetpotato.

Invertase inhibitor (INH) post-translationally regulates the activity of invertase, which hydrolyzes sucrose into glucose and fructose, and plays essential roles in plant growth and development. However, little is known about the role of INH in growth and responses to environmental challenges in sweetpotato. Here, we identified and characterized an INH-like gene (IbINH) from sweetpotato.