Publications by authors named "Yunmin Xu"

Changes in plant morphology due to mechanical stimulation are known as thigmo responses. As climbing organs in plants, tendrils can sense mechanical stimulation after attaching to a support and then change their morphology within a short time. Here, the thigmo responses of cucumber tendril were investigated.

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Article Synopsis
  • Leaf flattening is vital for maximizing light capture and improving photosynthesis, with earlier research focusing on its initial stages, but the maintenance in mature leaves is less understood.
  • The study investigates the role of sly-miR398b in tomatoes, finding it crucial for maintaining leaf flattening by being predominantly expressed on the abaxial side of the leaf.
  • Disruption of sly-miR398b using CRISPR/Cas9 leads to increased levels of Cu/Zn-SOD (SlCSD1) and altered auxin signaling, resulting in leaf epinasty; however, treatment with 1-naphthalacetic acid (NAA) successfully restores the flat leaf structure in mutants.
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Lung cancer is one of the most frequently diagnosed cancers worldwide, associated with a poor survival rate. Taxol (Paclitaxel) is commonly used as a chemotherapeutic treatment for advanced lung cancers. While Taxol has improved clinical outcomes for lung cancer patients, a significant number of them develop resistance to Taxol, resulting in treatment failure.

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Silicon (Si) is a widely recognized beneficial element in plants. With the emergence of nanotechnology in agriculture, silicon nanoparticles (SiNPs) demonstrate promising applicability in sustainable agriculture. Particularly, the application of SiNPs has proven to be a high-efficiency and cost-effective strategy for protecting plant against various biotic and abiotic stresses such as insect pests, pathogen diseases, metal stress, drought stress, and salt stress.

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Cadmium (Cd) pollution is an important threat to agricultural production globally. Silicon (Si) and silicon nanoparticles (Si NPs) can mitigate Cd stress in plants. However, the mechanisms underlying the impacts of Si and Si NPs on Cd resistance, particularly in low-Si accumulators, remain inadequately understood.

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MicroRNAs (miRNAs) have been shown to be critical components in plant immunity. MicroRNA398 (miR398) is a highly conserved miRNA in all land plants and plays crucial roles in diverse biotic stress responses. However, the role of miR398 has not yet been characterized in tomato resistance against .

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Article Synopsis
  • The study identifies the rapid elongation of cucumber tendrils as primarily driven by cell expansion during a specific growth stage.
  • RNA-seq analysis reveals high expression levels of PACLOBUTRAZOL-RESISTANCE4 (CsPRE4), which plays a key role in promoting this cell expansion.
  • The research outlines a signaling pathway involving CsPRE4, CsPAR1, CsBEE1, and CsEXPA12 that governs tendril growth and may enhance the plant's ability to quickly seek support.
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Tendril is a morphological innovation during plant evolution, which provides the plants to obtain climbing ability. However, the tendril morphogenesis is poorly understood. A novel tendril morphogenesis defective mutant (tmd1) was identified in cucumber.

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Infection with P. aeruginosa, one of the most relevant opportunistic pathogens in hospital-acquired infections, can lead to high mortality due to its low antibiotic susceptibility to limited choices of antibiotics. Polymyxin as last-resort antibiotics is used in the treatment of systemic infections caused by multidrug-resistant P.

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Cadmium (Cd) pollution is one of the major threats in agricultural production, and can cause oxidative damage and growth limitation in plants. MicroRNA398 (miR398) is involved in plant resistance to different stresses, and the post-transcriptional regulation of miR398 on s plays a key role. Here, we report that miR398 was down-regulated in tomato in response to Cd stress.

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Growth-regulating factors (GRFs) are plant-specific transcription factors, and their activities are regulated by miR396 and the GRF-GIF interaction. The miR396-GRFs/GIFs module determines organ size by regulating cell proliferation. However, it is largely unknown in cucumber.

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Map-based cloning and photoperiod response detection suggested that CsFT is the critical gene for cucumber photoperiod domestication. Photoperiod sensitivity is important for sensing seasonal changes and local adaptation. However, day-length sensitivity limits crop geographical adaptation and it should be modified during domestication.

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The nodulin 26-like intrinsic protein (NIP) family belonging to a group of aquaporin proteins is unique to plants. NIPs have a wide of transport activities and are involved in developmental processes and stress tolerance. The well reported Lsi1 and Lsi6 belonging to NIP III were characterized as Si transporters.

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Higher plants progress through a juvenile and an adult phase of development before they enter the reproductive phase. The transition from the juvenile to the adult phase is referred to as vegetative phase change, and this is signified by the production of trichomes on the abaxial side of leaf blades in Arabidopsis; however, the molecular mechanism underlying this process is poorly understood. We identified a dominant mutation (gl1-D) in a forward genetic screen that accelerates abaxial trichome production during shoot development.

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A mutation in the nuclear localization signal of squamosa promoter binding like-protein 9 (SPL9) delays vegetative phase change by disrupting its nuclear localization. The juvenile-to-adult phase transition is a critical developmental process in plant development, and it is regulated by a decrease in miR156/157 and a corresponding increase in their targets, squamosa promoter binding protein-like (SPL) genes. SPL proteins contain a conserved SBP domain with putative nuclear localization signals (NLSs) at their C-terminals.

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Epigenetic regulation is referred to as changes in gene function that do not involve changes in the DNA sequence, it is usually accomplished by DNA methylation, histone modifications (repressive marks such as H3K9me, H3K27me, H2Aub, or active marks such as H3K4me, H3K36me, H3Ac), and chromatin remodeling (nucleosome composition, occupancy, and location). In plants, the shoot apex produces different lateral organs during development to give rise to distinguishable phases of a juvenile, an adult and a reproductive phase after embryogenesis. The juvenile-to-adult transition is a key developmental event in plant life cycle, and it is regulated by a decrease in the expression of a conserved microRNA-miR156/157, and a corresponding increase in the expression of its target genes encoding a set of plant specific SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) proteins.

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Silencing of miR156 in rice confers enhanced resistance to brown planthopper through reducing JA and JA-Ile biosynthesis. Rice brown planthopper (BPH, Nilaparvata lugens Stål) threatens the sustainability of rice production and global food security. Due to the rapid adaptation of BPH to current germplasms in rice, development of novel types of resistant germplasms becomes increasingly important.

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Temporally regulated microRNAs have been identified as master regulators of developmental timing in both animals and plants. In plants, vegetative development is regulated by a temporal decrease in miR156 level, but how this decreased expression is initiated and then maintained during shoot development remains elusive. Here, we show that miR159 is required for the correct timing of vegetative development in Loss of miR159 increases miR156 level throughout shoot development and delays vegetative development, whereas overexpression of miR159 slightly accelerated vegetative development.

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Plants progress from a juvenile vegetative phase of development to an adult vegetative phase of development before they enter the reproductive phase. miR156 has been shown to be the master regulator of the juvenile-to-adult transition in plants. However, the mechanism of how miR156 is transcriptionally regulated still remains elusive.

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The spread of the plasmid-mediated colistin resistance gene, mcr-1, into carbapenem-resistant Enterobacteriaceae (CRE) clinical isolates poses a significant threat to global health. Here we report the identification of three mcr-1-harboring carbapenem-resistant Escherichia coli strains, collected from three patients in two provinces in China. Our results show that mcr-1-harboring CRE strains have started to spread in different hospitals in China.

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Among 144 carbapenem-resistant Enterobacteriaceae strains isolated from 4 hospitals in Yunnan province, 113 were identified as carbapenemase-producing Enterobacteriaceae (CPE). Bla (99/113, 87.6%) was the most common carbapenemase gene and Klebsiella pneumoniae (100/113, 88.

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After germination, plants progress through juvenile and adult phases of vegetative development before entering the reproductive phase. The character and timing of these phases vary significantly between different plant species, which makes it difficult to know whether temporal variations in various vegetative traits represent the same, or different, developmental processes. miR156 has been shown to be the master regulator of vegetative development in plants.

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BmECM25 (previously reported as BmVMP25) was previously predicted as a gene encoding the vitelline membrane protein in silkworm, Bombyx mori. In this study, we investigated the detail temporal and spatial patterns of BmECM25 protein. Western blot results showed that BmECM25 was expressed in the follicular epithelium cells from stages -6 to +1, and was then secreted into the oocytes.

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Transposable elements constitute a large fraction of the eukaryotic genomes. They have the potential to alter genome structure and play a major role in genome evolution. Here, we report a segmental duplication mediated by a novel long terminal repeat (LTR) retrotransposon as the cause of an egg-shell recessive lethal mutant (l-em mutant) in silkworm (Bombyx mori).

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Human utilization of the mulberry-silkworm interaction started at least 5,000 years ago and greatly influenced world history through the Silk Road. Complementing the silkworm genome sequence, here we describe the genome of a mulberry species Morus notabilis. In the 330-Mb genome assembly, we identify 128 Mb of repetitive sequences and 29,338 genes, 60.

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