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941.
Che Ronghui Hu Bin Wang Wei Xiao Yunhua Liu Dapu Yin Wenchao Tong Hongning Chu Chengcai 《中国科学:生命科学英文版》2022,65(6):1235-1247
Science China Life Sciences - Timely programmed cell death (PCD) of the tapetum supplying nutrients to microspores is a prerequisite for normal pollen development. Here we identified a unique... 相似文献
942.
Xiao‐Yan Liu Steven R. Manchester rew C. Rozefelds Cheng Quan Jian‐Hua Jin 《植物分类学报:英文版》2022,60(2):456-471
The genus Elaeocarpus contains approximately 360 species and occurs in mesic forest communities from India, through to China, Southeast Asia, New Guinea, Australia, and New Caledonia. Elaeocarpus fossils are best known from the Eocene to the Miocene of Australia and the late Pliocene–early Pleistocene of India, but have not been documented from East Asia before. Here we describe six new species of Elaeocarpus, E. nanningensis sp. nov. from the late Oligocene Yongning Formation of the Nanning Basin, E. presikkimensis sp. nov. from the Miocene Erzitang Formation of the Guiping Basin, E. prerugosus sp. nov., E. prelacunosus sp. nov., E. preserratus sp. nov., and E. preprunifolioides sp. nov. from the late Miocene Foluo Formation of the Nankang Basin in Guangxi, South China. This is the first reliable report for the genus occurring in East Asia, and the fossils indicate that Elaeocarpus had colonized this region by the late Oligocene and represented by a morphologically diverse group of species by the late Miocene. This sheds new insights into the timing and migration patterns of the genus in East Asia. Elaeocarpus is typically a rainforest genus occurring in mesic forests. Based on the habitat of their morphologically similar modern relatives we propose that these three sedimentary basins were warm and wet adjacent to mountainous regions with the evergreen or rain forests during the late Oligocene to Miocene. 相似文献
943.
Zhu Shiyou Liu Ying Zhou Zhuo Zhang Zhiying Xiao Xia Liu Zhiheng Chen Ang Dong Xiaojing Tian Feng Chen Shihua Xu Yiyuan Wang Chunhui Li Qiheng Niu Xuran Pan Qian Du Shuo Xiao Junyu Wang Jianwei Wei Wensheng 《中国科学:生命科学英文版》2022,65(4):701-717
Science China Life Sciences - The outbreak of coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has created a global health crisis. SARS-CoV-2 infects varieties of tissues where the known... 相似文献
944.
Zhu Yaling Zhou Zhimin Huang Tao Zhang Zhen Li Wanbo Ling Ziqi Jiang Tao Yang Jiawen Yang Siyu Xiao Yanyuan Charlier Carole Georges Michel Yang Bin Huang Lusheng 《中国科学:生命科学英文版》2022,65(8):1517-1534
Science China Life Sciences - The limited knowledge of genomic noncoding and regulatory regions has restricted our ability to decipher the genetic mechanisms underlying complex traits in pigs. In... 相似文献
945.
Yuanpu Zhang Xiaopeng Xiao Osama Elhag Minmin Cai Longyu Zheng Feng Huang Heather R. Jordan Jeffery K. Tomberlin Sing-Hoi Sze Ziniu Yu Jibin Zhang 《Microbial biotechnology》2022,15(10):2631-2644
Black soldier fly (BSF) larvae are considered a promising biological reactor to convert organic waste and reduce the impact of zoonotic pathogens on the environment. We analysed the effects of BSF larvae on Staphylococcus aureus and Salmonella spp. populations in pig manure (PM), which showed that BSF larvae can significantly reduce the counts of the associated S. aureus and Salmonella spp. Then, using a sterile BSF larval system, we validated the function of BSF larval intestinal microbiota in vivo to suppress pathogens, and lastly, we isolated eight bacterial strains from the BSF larval gut that inhibit S. aureus. Results indicated that functional microbes are essential for BSF larvae to antagonise S. aureus. Moreover, the analysis results of the relationship between the intestinal microbiota and S. aureus and Salmonella spp. showed that Myroides, Tissierella, Oblitimonas, Paenalcalignes, Terrisporobacter, Clostridium, Fastidiosipila, Pseudomonas, Ignatzschineria, Savagea, Moheibacter and Sphingobacterium were negatively correlated with S. aureus and Salmonella. Overall, these results suggested that the potential ability of BSF larvae to inhibit S. aureus and Salmonella spp. present in PM is accomplished primarily by gut-associated microorganisms. 相似文献
946.
Yuan Wenzhen Xiao Xingpeng Yu Xuan Xie Fuquan Feng Pengya Malik Kamran Wu Jingyuan Ye Ze Zhang Peng Li Xiangkai 《Probiotics and antimicrobial proteins》2022,14(1):60-71
Probiotics and Antimicrobial Proteins - Gastrointestinal mucositis associated with the use of chemotherapeutic drugs can seriously affect the quality of life of patients. In this study, a probiotic... 相似文献
947.
Zekun Huang Wanlong Huang Xiaolin Liu Zhaofang Han Guangjian Liu Grace Afumwaa Boamah Yi Wang Feng Yu Yang Gan Qizhen Xiao Xuan Luo Nan Chen Meng Liu Weiwei You Caihuan Ke 《Molecular ecology resources》2022,22(1):15-27
The nautilus, commonly known as a “living fossil,” is endangered and may be at risk of extinction. The lack of genomic information hinders a thorough understanding of its biology and evolution, which can shed light on the conservation of this endangered species. Here, we report the first high-quality chromosome-level genome assembly of Nautilus pompilius. The assembled genome size comprised 785.15 Mb. Comparative genomic analyses indicated that transposable elements (TEs) and large-scale genome reorganizations may have driven lineage-specific evolution in the cephalopods. Remarkably, evolving conserved genes and recent TE insertion activities were identified in N. pompilius, and we speculate that these findings reflect the strong adaptability and long-term survival of the nautilus. We also identified gene families that are potentially responsible for specific adaptation and evolution events. Our study provides unprecedented insights into the specialized biology and evolution of N. pompilius, and the results serve as an important resource for future conservation genomics of the nautilus and closely related species. 相似文献
948.
Xiao Zijun Shen Jie Li Yang Wang Zhuo Zhao Yanshuang Chen Yong Zhao Jing-yi 《Probiotics and antimicrobial proteins》2022,14(5):792-803
Probiotics and Antimicrobial Proteins - Nattokinase (NK) is a potent fibrinolytic enzyme with wide pharmaceutical and nutraceutical applications. Safe and high NK-yielding strains are urgently... 相似文献
949.
Hybridoma cells are featured by the effective utilization of both B lymphocytes and immortalized myeloma cells, allowing for the continuous generation of monoclonal antibodies specific to antigens. With regard to conventional hybridoma technology, B lymphocytes must be fused with myeloma cells using various methods to generate hybridoma cells. Nutrition plays an important role in hybridoma cell survival and amplification, which determines the fusion effect and antibody production. Here we compared the growth and survival rates of hybridoma in a commonly used peritoneal macrophage feeder layer (PMFL) nutrition supply system with a commercial hybridoma feeder additive (HFA) nutrition supply system at the post fusion stage and discussed the titer of monoclonal antibodies by enzyme linked immunosorbent assay (ELISA). Our results indicate that commercially available HFA promotes the survival and amplification of hybridoma clones and improves the titer of monoclonal antibodies indirectly. 相似文献
950.
Atherosclerosis is the most frequent cause of death and severe chronic disability in North America and Europe. The atherosclerosis-prone apolipoprotein E (apoE)-deficient mice contain the entire spectrum of lesions observed during atherogenesis. Significant remodelling of the artery occurs in atherosclerosis. The aim was to study the remodelling of the zero-stress state of the aorta in apoE-deficient mice up to 56 weeks of age. Normal wild-type mice served as control groups. The mice were euthanised at ages 10, 28 and 56 weeks and tissue rings where excised from several locations along the aorta. The rings where photographed in the no-load state (without any external forces applied), then cut radially to obtain the zero-stress state and photographed again. The cross-sectional wall area and wall thickness increased over time in apoE-deficient mice compared to controls (P<0.001). The residual strains at the inner and outer surface varied as function of aortic location both in controls and apoE-deficient mice (P<0.001). From age 28 to age 56 weeks a gradual increase in positive strain at the outer surface and negative strain at the inner surface was found in the apoE-deficient mice when compared to age-matched control mice (P<0.001). Furthermore, the inner residual strain in the plaque location was significantly smaller than in the non-plaque location in the rings with atherosclerotic plaques (P<0.001). The change over time of the opening angle was especially pronounced in the aortic arch. The opening angle increased to app. 200 degrees in the aortic arch in apoE-deficient mice at 56 weeks of age whereas it in age-matched controls was app. 125 degrees. Correspondingly, atherosclerotic plaques were prominent in the apoE-deficient mice, especially at week 56 in the ascending aorta and the aortic arch. In conclusion, a pronounced remodelling of the biomechanical properties in aorta was found in apoE-deficient mice. The stress gradient across the vessel wall in the plaque region is likely larger in vivo due to the smaller residual strain in the plaque area. 相似文献