Publications by authors named "Zongyun Li"

Porcine reproductive and respiratory syndrome virus (PRRSV) infections often trigger oxidative stress and cytokine storms, resulting in significant tissue damage that causes fatalities in piglets and reproductive issues in sows. However, it is still unknown how oxidative stress is regulated by viral and host factors in response to PRRSV infection. Here, we found that PRRSV induced cellular oxidative stress by triggering the production of reactive oxygen species and inhibiting the expression of antioxidant enzymes.

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The impact of ZnO as a feed additive on growth-performance and intestinal function of (ETEC) K88-infected piglets remains unclear. Fecal scores of piglets in ETEC group were significantly increased compared to control group. ETEC K88 significantly damages the small intestine, including a reduction in villus height in the jejunum, duodenum, and ileum, and a decrease in total superoxide dismutase activity in the jejunum and catalase activity in the ileum and jejunum.

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  • * This study found that spraying carbon dots (CDs) from Salvia miltiorrhiza on Arabidopsis thaliana improved nitrogen uptake and metabolism by activating specific genes and pathways.
  • * Foliar application of CDs not only increased NUE in sweetpotato from 2.5% to 8.1% but also enhanced crop yields and tolerance to low nitrogen stress, demonstrating their potential benefits in agriculture.
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  • Sweetpotato is a very important crop that can help with food problems and climate change.
  • A study reviewed 30 years of research on sweetpotato to see how it has changed and what scientists are focusing on.
  • The research shows that sweetpotato has gone through three main stages and talks about how to make it grow better and stronger in the future.
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Small auxin-upregulated RNAs (), as the largest family of early auxin-responsive genes, play important roles in plant growth and development processes, such as auxin signaling and transport, hypocotyl development, and tolerance to environmental stresses. However, the functions of few genes are known in the root development of sweet potatoes. In this study, an gene was cloned and functionally analyzed.

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  • Phosphatidylserine (PS) is crucial for plant growth and helps plants adapt to salt stress, but its specific role in enhancing salt tolerance is not well understood.
  • In a study using sweetpotato plants that overproduce PS, researchers found that these plants had lower sodium (Na) levels in their stems and leaves compared to normal plants.
  • The overexpression of PS led to increased lignin production and upregulation of ethylene synthesis, which together blocked Na entry into the plant's water transport system, helping the plants deal better with salt stress.
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Sweetpotato ( L.) is a strategic crop with both economic and energy value. However, improving sweetpotato varieties through traditional breeding approaches can be a time-consuming and labor-intensive process due to the complex genetic nature of sweetpotato as a hexaploid species (2n = 6x = 90).

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Sweetpotato (Ipomoea batatas (L.) Lam.) holds a crucial position as one of the staple foods globally, however, its yields are frequently impacted by environmental stresses.

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  • Scientists studied special genes in sweet potato called bHLH genes that help plants grow and deal with stress.
  • They found 227 of these genes and discovered that they became more common because of certain genetic duplications.
  • Some of these genes are important for making a color called anthocyanin and help the plant survive tough conditions like salty soil.
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Osmotin-like proteins (OLPs) play an important role in host-plant defense. In this study, a novel multiresistant OLP (IbOLP1) was screened from sweetpotato () with a molecular weight of 26.3 kDa.

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Introduction: The higher plant transcription factor C2H2 zinc finger protein (C2H2-ZFP) is essential for plant growth, development, and stress response. There are limited studies on genes in sweetpotato, despite a substantial number of genes having been systematically found in plants.

Methods: In this work, 178 genes were found in sweetpotato, distributed randomly on 15 chromosomes, and given new names according to where they were located.

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Black rot disease, caused by Ellis & Halsted, severely affects both plant growth and post-harvest storage of sweet potatoes. Invertase (INV) enzymes play essential roles in hydrolyzing sucrose into glucose and fructose and participate in the regulation of plant defense responses. However, little is known about the functions of INV in the growth and responses to black rot disease in sweet potato.

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  • * Researchers sequenced the transcriptome of storage roots at different growth stages in two sweet potato lines, identifying significant differences in gene expression related to root expansion.
  • * The study highlights key genes involved in lignin synthesis, suggesting they play an important role in the early expansion of storage roots, potentially impacting overall sweet potato yield.
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In China, iron (Fe) availability is low in most soils but cadmium (Cd) generally exceeds regulatory soil pollution limits. Thus, biofortification of Fe along with mitigation of Cd in edible plant parts is important for human nutrition and health. Carbon dots (CDs) are considered as potential nanomaterials for agricultural applications.

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The storage roots of purple-fleshed sweetpotato rich in anthocyanins are considered nutrient-rich foods with health effects. However, the molecular mechanism underlying anthocyanin biosynthesis and regulation remains to be revealed. In this study, IbMYB1-2 was isolated from purple-fleshed sweetpotato "Xuzishu8".

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In this study, the influences of long-term soil drought with three levels [soil-relative water content () (75 ± 5)%, as the control; (55 ± 5)%, mild drought; (45 ± 5)%, severe drought] were investigated on sucrose-starch metabolism in sweet potato tuberous roots (TRs) by pot experiment. Compared to the control, drought stress increased soluble sugar and sucrose content by 4-60% and 9-75%, respectively, but reduced starch accumulation by 30-66% through decreasing the starch accumulate rate in TRs. In the drought-treated TRs, the inhibition of sucrose decomposition was attributed to the reduced activities of acid invertase (AI) and alkaline invertase (AKI) and the expression, rather than sucrose synthase (SuSy), consequently leading to the increased sucrose content in TRs.

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  • This study investigates the impact of combined heat and drought stresses on sweetpotato at the molecular level using RNA-seq and proteomic analysis, revealing significant gene and protein changes.
  • A total of 907 differentially expressed genes (DEGs) and 1535 differentially expressed proteins (DEPs) were identified specifically under drought and heat combination (DH) stress, with unique genes and proteins linked to DH.
  • The findings enhance our understanding of the molecular responses of sweetpotato to DH stress, potentially aiding in developing more resilient crop varieties.
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Two-component system (TCS), which comprises histidine kinases (HKs), histidine phosphotransfer proteins (HPs), and response regulators (RRs), plays essential roles in regulating plant growth, development, and response to various environmental stimuli. TCS genes have been comprehensively identified in various plants, while studies on the genome-wide identification and analysis of TCS in sweet potato were still not reported. Therefore, in this study, a total of 90 TCS members consisting of 20 HK(L)s, 11 HPs, and 59 RRs were identified in the genome of .

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Background: WRKY transcription factors play pivotal roles in regulating plant multiple abiotic stress tolerance, however, a genome-wide systematical analysis of WRKY genes in sweetpotato is still missing.

Results: Herein, 84 putative IbWRKYs with WRKY element sequence variants were identified in sweetpotato reference genomes. Fragment duplications, rather than tandem duplications, were shown to play prominent roles in IbWRKY gene expansion.

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In order to explore the effect of potassium (K) deficiency on nitrogen (N) metabolism in sweet potato ( L.), a hydroponic experiment was conducted with two genotypes (Xushu 32, low-K-tolerant; Ningzishu 1, low-K-sensitive) under two K treatments (-K, <0.03 mM of K; +K, 5 mM of K) in the greenhouse of Jiangsu Normal University.

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Plants often simultaneously experience combined stresses rather than a single stress, causing more serious damage, but the underlying mechanisms remain unknown. Here, we identified the stress-induced IbNAC3 from sweet potato (Ipomoea batatas) as a nucleus-localized transcription activator. IbNAC3 contains a unique activation domain whose MKD sequence confers transactivation activities to multiple other TFs and is essential for the activated expression of downstream target genes.

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Bacterial consortium is an important source of lignocellulolytic strains, but it is still a challenge to distinguish the direct decomposers of lignocellulose from other bacteria in such a complex community. This study aims at addressing this issue by focusing on the dynamic changes in community structure and degradation activity of MMBC-1, an established and stable lignocellulolytic bacterial consortium, during its subculturing revival. MMBC-1 was cryopreserved with glycerol as a protective agent and then inoculated for revival.

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