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.
View Article and Find Full Text PDFThe 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.
View Article and Find Full Text PDFThe origin of hexaploid sweetpotato [Ipomoea batatas (L.) Lam.] remains controversial.
View Article and Find Full Text PDFSmall 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.
View Article and Find Full Text PDFSweetpotato ( 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).
View Article and Find Full Text PDFSweetpotato (Ipomoea batatas (L.) Lam.) holds a crucial position as one of the staple foods globally, however, its yields are frequently impacted by environmental stresses.
View Article and Find Full Text PDFOsmotin-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.
View Article and Find Full Text PDFIntroduction: 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.
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.
View Article and Find Full Text PDFIn 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.
View Article and Find Full Text PDFThe 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".
View Article and Find Full Text PDFIn 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.
View Article and Find Full Text PDFTwo-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 .
View Article and Find Full Text PDFBackground: 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.
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.
View Article and Find Full Text PDFPlants 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.
View Article and Find Full Text PDFBacterial 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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