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Science China. Life Sciences

Qinghua Guo, Fangfang Wu, Shuxin Pang, Xiaoqian Zhao, Linhai Chen, Jin Liu, Baolin Xue, Guangcai Xu, Le Li, Haichun Jing, Chengcai Chu
With the growing population and the reducing arable land, breeding has been considered as an effective way to solve the food crisis. As an important part in breeding, high-throughput phenotyping can accelerate the breeding process effectively. Light detection and ranging (LiDAR) is an active remote sensing technology that is capable of acquiring three-dimensional (3D) data accurately, and has a great potential in crop phenotyping. Given that crop phenotyping based on LiDAR technology is not common in China, we developed a high-throughput crop phenotyping platform, named Crop 3D, which integrated LiDAR sensor, high-resolution camera, thermal camera and hyperspectral imager...
December 6, 2017: Science China. Life Sciences
Min Li, Xin Wang, Qihui Wang, Lei Yu, Lanfeng Wang, Jinghua Yan, Fuchun Zhang, Linqi Zhang, George F Gao, Xia Jin
No abstract text is available yet for this article.
November 10, 2017: Science China. Life Sciences
Lei-Ping Zeng, Xing-Yi Ge, Cheng Peng, Wanbo Tai, Shibo Jiang, Lanying Du, Zheng-Li Shi
No abstract text is available yet for this article.
November 10, 2017: Science China. Life Sciences
Xiaoliang Yu, Sudan He
No abstract text is available yet for this article.
November 10, 2017: Science China. Life Sciences
Jing Wang, Zhenyu Li, Li Gao, Yanshuang Qi, Haibo Zhu, Xuemei Qin
AMP-activated protein kinase (AMPK) is a sensor of cellular energy status that plays a key role in energetic metabolism regulation. Metabolic changes in immune cells, such as dendritic cell (DC), macrophages, neutrophils and lymphocytes that participate in the signal directed programs that promote or inhibit immune mediated diseases, including cancer, atherosclerosis and inflammatory diseases. Multiple pathogenic mechanisms are involved in the initiation and progression of disease, and many pathways have been uncovered...
November 8, 2017: Science China. Life Sciences
Qi Li, Hai Huang, Zheng He, Yi Sun, Yufeng Tang, Xiaohong Shang, Chengbin Wang
We previously demonstrated that matrine could inhibit the proliferating, migrating, as well as invading processes of both PC-3 and DU145 cells. However, the underlying molecular mechanisms have not yet been clearly defined. In this study, using various techniques such as high throughput sequencing technology, bioinformatics, quantitative real-time PCR, and immunoblot analysis, we aimed to understand whether matrine serves as a novel regulator of FOXO and PI3K-AKT signaling pathway. DU145 and PC-3 cell lines were cultured for 24 h in vitro...
November 7, 2017: Science China. Life Sciences
Ruifeng Yao, Jiayang Li, Daoxin Xie
Strigolactones (SLs) are a very special class of plant hormones, which act as endogenous signals to regulate shoot branching in plants, and also serve as rhizosphere signals to regulate interactions of host plants with heterologous organisms such as symbiotic arbuscular mycorrhizal fungi and parasitic weeds. In this short review, we give a brief description of novel discoveries in SL biosynthesis pathway, and mainly summarize the recent advances in SL perception and signal transduction.
November 6, 2017: Science China. Life Sciences
Qian Qian
No abstract text is available yet for this article.
November 1, 2017: Science China. Life Sciences
Pingchuan Deng, Shu Liu, Xiaojun Nie, Song Weining, Liang Wu
Long non-coding RNAs (lncRNAs) are gene regulators that have vital roles in development and adaptation to the environment in eukaryotes. However, the structural and evolutionary analyses of plant lncRNAs are limited. In this study, we performed an analysis of lncRNAs in five monocot and five dicot species. Our results showed that plant lncRNA genes were generally shorter and had fewer exons than protein-coding genes. The numbers of lncRNAs were positively correlated with the numbers of protein-coding genes in different plant species, despite a high range of variation...
October 31, 2017: Science China. Life Sciences
Jinping Cheng, Yong Zhang, Ziwei Li, Taiyun Wang, Xiaotuo Zhang, Binglian Zheng
Lariat RNA is produced during pre-mRNA splicing, and it is traditionally thought as by-products, due to the quick turnover by debranching followed by degradation. However, recent findings identified many lariat RNAs accumulate with a circular form in higher eukaryotes. Although the remarkable accumulation, biological consequence of lariat-derived circular RNAs (here we name laciRNAs) remains largely unknown. Here, we report that a specific laciRNA from At5g37720 plays an essential role in plant development by regulating gene expression globally...
October 31, 2017: Science China. Life Sciences
Shiling Zheng, Fanghua Liu, Meng Li, Leilei Xiao, Oumei Wang
Both activated carbon and magnetite have been reported to promote the syntrophic growth of Geobacter metallireducens and Geobacter sulfurreducens co-cultures, the first model to show direct interspecies electron transfer (DIET); however, differential transcriptomics of the promotion on co-cultures with these two conductive materials are unknown. Here, the comparative transcriptomic analysis of G. metallireducens and G. sulfurreducens co-cultures with granular activated carbon (GAC) and magnetite was reported...
October 31, 2017: Science China. Life Sciences
Naeh L Klages-Mundt, Lei Li
DNA is constantly exposed to a wide array of genotoxic agents, generating a variety of forms of DNA damage. DNA-protein crosslinks (DPCs)-the covalent linkage of proteins with a DNA strand-are one of the most deleterious and understudied forms of DNA damage, posing as steric blockades to transcription and replication. If not properly repaired, these lesions can lead to mutations, genomic instability, and cell death. DPCs can be induced endogenously or through environmental carcinogens and chemotherapeutic agents...
October 30, 2017: Science China. Life Sciences
Duo Li
No abstract text is available yet for this article.
October 27, 2017: Science China. Life Sciences
Laiye Qu, Zhongbin Wang, Yuanyuan Huang, Yuxin Zhang, Chengjun Song, Keming Ma
The patchy distribution of vegetation in dry land results in well-documented "fertile islands". However, the response of shrub fertile islands to plant recovery and the underlying mechanisms, such as the linkage plant and soil properties, remain unknown. We sampled soils from areas with three different plant coverages (25%, 45%, and 75%) and three of their adjacent inter-plants to investigate soil physicochemical and microbial properties in the upper Minjiang River arid valley. The results showed that these factors were influenced by the persistence of plants that contrasted with the inter-plant interspaces...
October 27, 2017: Science China. Life Sciences
Song Song, Yuanyuan Li, Shihong Fu, Wenwen Lei, Xiaofang Guo, Yun Feng, Xiaoyan Gao, Xiaolong Li, Zhonghua Yang, Ziqian Xu, Ying He, Huanyu Wang, Hongning Zhou, Bin Wang, Xiaoqing Lu, Guodong Liang
In an investigation of blood-sucking insects and arboviruses, a virus (YN12243) was isolated from Culicoides samples collected in the Sino-Burmese border region of Yunnan Province, China. The virus caused cytopathic effect (CPE) in C6/36 cells and passaged stably. Polyacrylamide gel analysis showed that the genome of YN12243 was composed of 12 segments of double-stranded RNA (dsRNA), with a distribution pattern of 6-6. The nucleotide and amino acid sequences of the coding region (1‒12 segments) were 17,803 bp and 5,925 amino acids in length, respectively...
October 26, 2017: Science China. Life Sciences
Jian Ouyang, Li Lan, Lee Zou
Repair of DNA double-strand breaks (DSBs) via the homologous recombination (HR) pathway is a highly regulated process. A number of proteins that participate in HR are intricately modulated by the cell cycle and chromatin environments of DSBs. Recent studies have revealed a clear impact of transcription on HR in transcribed regions of the genome. Several models have been put forth to explain how the process of transcription and/or its RNA products may influence HR. Here we discuss the results and models from these studies, presenting an emerging view of transcription-coupled DSB repair...
October 24, 2017: Science China. Life Sciences
Jinzhen Guo, Luping Chen, Guo-Min Li
Trinucleotide repeat expansions cause over 30 severe neuromuscular and neurodegenerative disorders, including Huntington's disease, myotonic dystrophy type 1, and fragile X syndrome. Although previous studies have substantially advanced the understanding of the disease biology, many key features remain unknown. DNA mismatch repair (MMR) plays a critical role in genome maintenance by removing DNA mismatches generated during DNA replication. However, MMR components, particularly mismatch recognition protein MutSβ and its interacting factors MutLα and MutLγ, have been implicated in trinucleotide repeat instability...
October 24, 2017: Science China. Life Sciences
Junjie Yan, Qunxia Zhang, Ping Yin
RNA editing is a type of post-transcriptional modification that includes nucleotide insertion/deletion or conversion. Different categories of RNA editing have been widely observed in distinct RNAs from divergent organisms. In flowering plants, RNA editing usually alters cytidine to uridine in plastids and mitochondria, playing important roles in various plant developmental processes, including organelle biogenesis, adaptation to environmental changes, and signal transduction. Numerous studies have demonstrated that a number of factors are involved in plant RNA editing, such as pentatricopeptide repeat (PPR) proteins, multiple organelle RNA editing factors (MORF, also known as RIP), organelle RNA recognition motif (ORRM) containing proteins, protoporphyrinogen IX oxidase 1 (PPO1) and organelle zinc finger 1 (OZ1)...
October 23, 2017: Science China. Life Sciences
Qiaoni Shi, Ye-Guang Chen
Transforming growth factor-β (TGF-β) signaling regulates cell proliferation, differentiation, migration and death, and plays a critical role in embryogenesis and tissue homeostasis. Its deregulation results in various diseases including tumor formation. Receptor tyrosine kinases (RTKs), such as epidermal growth factor receptor (EGFR), fibroblast growth factor receptor (FGFR), vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR), also play key roles in the development and progression of many types of tumors...
October 23, 2017: Science China. Life Sciences
Juncong Sun, Bing Leng, Guoan Sheng, Xin Fang, Laigeng Li, Jirong Huang, Xiaoquan Qi, Xiaoya Chen
No abstract text is available yet for this article.
October 23, 2017: Science China. Life Sciences
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