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Lethal giant larvae gene is required for normal nymphal development and midgut morphogenesis in Locusta migratoria

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Insect Science 2022年第4期29卷 1017-1029页

作者： Xuekai Shi Xiaojian Liu Kristopher Silver Kun Yan Zhu jianzhen zhang Institute of Applied Biology Shanxi UniversityTaiyuanShanxiChina College of Life Science Shanxi UniversityTaiyuanShanxiChina Department of Entomology Kansas State UniversityManhattanKansasUSA

Disruption of morphogenesis,an essential process in organismal development,can lead to disruption of biological processes,reduction in fitness,or even death of an *** roles of lethal giant larvae(Lgl)protein in maintaining tissue organization have been studied extensively in mammals,but little is known about this gene's roles in promoting correct tissue morphogenesis in *** this study,we identified an Lgl ortholog in Locusta ***-qPCR results revealed that LmLgl was constitutively expressed during third,fourth,and fifth instar ***,LmLgl showed highest expression in the ovary followed by wing pads,midgut,hindgut,Malpighian tubules,and foregut of the third-instar *** examine the role of LmLgl in *** development,RNA interference was performed during nymphal *** of LmLgl increased body size but decreased bodyweight by 9.0%.Histological sections of the midgut revealed abnormal large masses of disordered epithelial cells in dsLmLgl-injected *** addition,downregulation of LmLgl transcript levels significantly altered the morphological structure in midgut,resulting in the formation of tumor-like *** results indicated that LmLgl may act as a tumor-suppressor gene,which plays an essential role in maintaining a normal morphological structure in the midgut of *** results also suggest that LmLgl may be explored as a potential target for developing dsRNA-based biological pesticides for managing insect pests.

关键词： development lethal giant larvae Locusita migratoria midgut morphogenesis RNA interference

Development and formation of wing cuticle based on transcriptomic analysis in Locusta migratoria during metamorphosis

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Journal of Integrative Agriculture 2024年第4期23卷 1285-1299页

作者： Jing zhang Zhaochen Wu Shuo Li He Huang Suning Liu Weimin Liu Xiaoming Zhao jianzhen zhang Shanxi Key Laboratory of Nucleic Acid Biopesticides Institute of Applied BiologyShanxi UniversityTaiyuan 030006China College of Life Science Shanxi UniversityTaiyuan 030006China Guangmeiyuan R&D Center/Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology South China Normal UniversityMeizhou 514779China

Wings are an important flight organ of *** development is a complex process controlled by a series of *** flightless wing pad transforms into a mature wing with the function of migratory flight during the nymphto-adult ***,the mechanism of wing morphogenesis in locusts is still *** study analyzed the microstructures of the locust wing pads at pre-eclosion and the wings after eclosion and performed the comparative transcriptome ***-seq identified 25,334 unigenesand 3,430 differentially expressed genes(DEGs)(1,907 up-regulated and 1,523 down-regulated).The DEGs mainly included cuticle development(LmACPs),chitin metabolism(Lm Idgf4),lipid metabolism-related genes,cell adhesion(Integrin),zinc finger transcription factors(LmSalm,LmZF593 andLmZF521),and *** analysis based on RNA interference and hematoxylin and eosin(H&E)staining showed that the three genes encoded zinc finger transcription factors are essential for forming wing cuticle and maintaining morphology in Locusta ***,the study found that the LmSalm regulates the expression of LmACPs in the wing pads at pre-eclosion,and LmZF593 and LmZF521 regulate the expression of LmIntegrin/LmIdgf4/LmHMT420 in the wings after *** study revealed that the molecular regulatory axis controls wing morphology in nymphal and adult stages of locusts,offering a theoretical basis for the study of wing development mechanisms in hemimetabolous insects.

关键词： Locusta migratoria wing development metamorphosis RNA-seq

Isotope tracers for deep-seated fluids and noble gases

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Chinese Journal Of Geochemistry 2013年第2期32卷 195-202页

作者： WANG Baode NIU Shuyin SUN Aiqun zhang jianzhen WANG Xiang WANG Chuen Institution of Geological Survey Shijiazhuang University of Economics Qingdao Institute of Geological Engineering and Exploration

The role of He and Ar isotopes in tracing the source of ore fluids has aroused great attention of the broad masses of the geological researchers. On the basis of lots of test and measurement of He and Ar isotopes in sulfides from Au, Ag polymetallic ore deposits in northern China, statistics has been made on the published He and Ar isotope data from 27 gold deposits, 13 silver polymetallic ore deposits, 8 polymetallic ore deposits, 1 rare-earth deposit, 3 oceanic incrustations, 3 volcanic springs and their wall rocks and granites. The statistical results indicate that the 3 He/ 4 Ar (×10-6 ) values of the Au, Ag polymetallic ore deposits are within the range of 0.24 9.39, with an average of 3.34×10-6 ; the He/Ar values, 0.007 6.01,with an average of 2.37; the 40 Ar/ 36 Ar values, 265.75 2361, with an average of 699.0; the 4 He/ 40 Ar values, 0.0020 643.86, with an average of 5.85, the 3 He/ 4 Ar (×10-6 ) values of gneiss and granite surrounding the mining area, 0.001 1.79, with an average of 1.00×10-6 , reflecting great differences in source. Mantle-source He in 48 Au, Ag polymetallic ore deposits accounts for 4.55% 83.06%, averaging 29.91%. It falls near the mantle-source region which can be seen in the He isotopic concentration diagram and the 3 He/ 4 He(R/Ra) 40 Ar/ 36 Ar plot. Studies suggested that the ore-forming materials for endogenic Au, Ag polymetallic ore deposits should be derived from the deep interior of the Earth, and with the multi-stage evolution of mantle plumes the deep-seated ore fluids would be transported from the deep interior of the Earth to the shallow levels. During this process the mixing of crust/mantle-source fluids would inevitably occur, therefore, the value range always lies between the mantle and the crust.

关键词：成矿流体同位素示踪稀有气体银多金属矿床氦同位素氩同位素幔源流体地球内部

Timing of mineralization at the Shihu gold deposit in the middle segment of the Taihang Mountain, China

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Acta Geochimica 2018年第1期37卷 80-89页

作者： Chao Chen Shuyin Niu Fang Wang Fuxiang zhang Qinglian zhang Baojun Ma Aiqun Sun jianzhen zhang Yaqi Cao Xiaoqing zhang Hebei GEO University Shijiazhuang 050031 China

The Shihu gold deposit, located in the middlesouth section of the core of the Fuping mantle branch structure, is hosted in the Archean Fuping Group and adjacent to the quartz diorite porphyrite. The gold deposit is the only large gold deposit with reserves of more than 30 tons gold discovered in western Hebei Province so far. In order to constrain the timing of mineralization of this ore deposit, this paper focuses on the isotopic dating of zircon and pyrite. Zircons in gold-bearing quartz veins are magmatic in origin and no hydrothermal zircon has been found in such quartz veins, indicating that zircons were derived from the wall rocks. U–Pb ages of zircons fall mainly in the two domains: 2492 ± 82 and 136 ± 4 Ma, respectively,indicative of the contribution of the Fuping-Group TTG gneiss and Yanshanian igneous rocks, respectively. The Re–Os isotopic compositions of pyrites in the gold-bearing quartz veins yield an isochron age of 127 ± 31 Ma. Combined with other dating results, we suggest that the main metallogenic age of the Shihu gold deposit is 120–127 Ma.

关键词： Mantle branch structure Shihu gold deposit Zircon U–Pb dating Pyrite Re–Os dating Gold-bearing quartz vein

Clathrin heavy chain is essential for the development and reproduction of Locusta migratoria

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Insect Science 2022年第6期29卷 1601-1611页

作者： Xuekai Shi Shuai Li Lin Yang Xiaojan Liu Hans Merzendorfer Kun Yan Zhu jianzhen zhang Institute of Applied Biology Shanxi UniversityTaiyuanChina Collge of Life Science Shanxi UniversiyTaiyuanChina Institute of Biology University of SiegenSiegenGermany Department of Entomology Kansas State UniversityManhattanKansasUSA

Clathrin heavy chain(Chc)is a constituent of clathrin-coated vesicles and serves important functions in endocytosis and intracellular membrane trafficking but ap-pears to have physiological roles also at the organismal *** of what we know about Chc functions originates from studies performed in fungal or vertebrate ***-ever,the physiological functions of Chc in insects remain poorly ***,we identified a Chc ortholog from a Locusta migratoria transcriptome ***-qPCR revealed that LmChc was constitutively expressed in fifth-instar *** this develop-mental stage,LmChc showed the highest expression in the ovary followed by hemolymph,testis,hindgut,midgut,and *** isolated hemocytes,we detected the Chc protein in patches at the plasma *** examine the role of LmChc in *** during development,RNA interference was performed by injecting dsRNA into the early fifth-instar *** of LmChc caused a lethal phenotype with molting defect from nymph to *** addition,silencing of LmChc resulted in abnormal development of the ovaries,the size of which was significantly smaller than that in *** together,our results suggest that LmChc is a vital gene in *** that plays an important role in growth,development,and *** may be used as an efficient RNAi target gene for developing dsRNA-based biological insecticides to manage insect pests.

关键词： clathrin heavy chain development Locusta migratoria ovary RNA inter-ference

Analysis of the ore-controlling role of Guojiadian mantle branch structure,Northwest Shandong Peninsula,China

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Chinese Journal Of Geochemistry 2012年第4期31卷 414-423页

作者： NIU Shuyin Sun Aiqun zhang jianzhen MA Baojun WANG Baode CHEN Chao zhang Fuxiang LIU Cheng zhang Xiaofei College of Resources Shijiazhuang University of Economics Shijiazhuang 050031 China College of Earth Science and Resources China University ofGeosciences Beifing 100083 China

Metallogenesis in the gold ore-concentrated zone of Northwest Shandong Peninsula is closely related to deep *** region in the eastern part of North China entered into the stage of mantle plume evolution during the Yanshanian movement,following the long-time stage of stable platform evolution during Paleozoic *** that time,the ore-concentrated zone of Northwest Shandong Peninsula just entered into the development-evolution stage of the Laiyang sub-mantle plume and the Guojiadian mantle branch structure in its *** core-mantle-source gold was present in the gas-liquid form,and it migrated through mantle plume→sub-mantle plume→mantle branch structure→favorable tectonic expansion zone to the favorable loci of the mantle branch structure,where gold was deposited as ores,thereafter constituting a series of large-to medium-sized gold deposits distributed around the Guojiadian mantle branch *** study also dealt with the Jiaojia fault as the main detachment(fault altered rock) belt on the northwestern margin of the mantle branch structure and also presented a basic cognition about the fact that the Sanshandao fault as the listric fault on the hanging wall of the detachment ***,on this basis,this study also pointed out the orientation for further ore prospecting in this region.

关键词：分支结构山东半岛地幔柱中国北方西北部控矿作用演化阶段焦家断裂带

Study on the Metallogenetism of Sub-mantle Plume and Mantle Branches in the Gold Mineralization Concentration Area of Northwest Jiaodong Peninsula

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Acta Geologica Sinica(English Edition) 2014年第5期88卷 1409-1420页

作者： NIU Shuyin CHENG Guangsuo zhang jianzhen SUN Aiqun MA Baojun zhang Fuxiang WANG Baode XU Meng WU Jichun ZHAO Rongxin WANG Shanfei Key Laboratory of Gold Mineralization Processes and Resource Utilization Subordinated to the Ministry of Land and Resources Shijiazhuang University of Economics Shandong Gold Group Co. Ltd.

The northwest of Jiaodong peninsula is characterized by its greatest gold concentration area, enormous gold reserves and limited time interval （115±5Ma） of gold mineralization in China. Studies show that the east area of north China began its mantle plume evolution since the Yanshanian movement, and the Laiyang sub-mantle plume and its surrounding mantle branches such as those in Guojiadian, Aishan and Panshidian were formed in the mineralization concentration area of northwestern Jiaodong peninsula. With the development of mantle plume →sub-mantle plume → mantle branch→ favorable expending structures, the deep-derived hydrothermal fluid moved up to the favorable places, such as brittle-ductile or ductile-brittle shearing zones, the internal and external contact zones of intrusions, dense fracturing zones and the contact zones between dikes and countryrocks, and concentrated into deposits. Then the gold mineralization concentration zones that are centralized on mantle branches were formed. This study takes Guojiadian mantle branch as an example to discuss their metallogenetism and conclude the metallogenetic mode.

关键词： sub-mantle plume mantle branch ore-controlling structure metallogenetism,metallogenetic mode northwest Jiaodong peninsula

Low-density lipoprotein receptor-related protein 2(LRP2)is required for lipid export in the midgut of the migratory locust,Locusta migratoria

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Journal of Integrative Agriculture 2024年第5期23卷 1618-1633页

作者： Yiyan Zhao Weimin Liu Xiaoming Zhao Zhitao Yu Hongfang Guo Yang Yang Hans Merzendorfer Kun Yan Zhu jianzhen zhang Research Institute of Applied Biology Shanxi Key Laboratory of Nucleic Acid BiopesticidesShanxi UniversityTaiyuan 030006China College of Life Science Shanxi UniversityTaiyuan 030006China Interfaculty Institute of Cell Biology University of TubingenTubingen 72076Germany Institute of Biology University of SiegenSiegen 57076Germany Department of Entomology Kansas State UniversityManhattanKS 66506USA

Low-density lipoprotein receptor-related protein 2(LRP2)is a multifunctional endocytic receptor expressed in epithelial *** mammals,it acts as an endocytic receptor that mediates the cellular uptake of cholesterol-containing apolipoproteins to maintain lipid ***,little is known about the role of LRP2 in lipid homeostasis in *** the present study,we investigated the function of LRP2 in the migratory locust Locusta migratoria(LmLRP2).The mRNA of LmLRP2 is widely distributed in various tissues,including integument,wing pads,foregut,midgut,hindgut,Malpighian tubules and fat body,and the amounts of LmLRP2 transcripts decreased gradually in the early stages and then increased in the late stages before ecdysis during the nymphal developmental *** immunohistochemistry revealed that the LmLRP2 protein is mainly located in cellular membranes of the midgut and *** RNAi to silence LmLRP2 caused molting defects in nymphs(more than 60%),and the neutral lipid was found to accumulate in the midgut and surface of the integument,but not in the fat body,of dsLmLRP2-treated *** results of a lipidomics analysis showed that the main components of lipids(diglyceride and triglyceride)were significantly increased in the midgut,but decreased in the fat body and ***,the content of total triglyceride was significantly increased in the midgut,but markedly decreased in the fat body and hemolymph in dsLmLRP2-injected *** results indicate that LmLRP2 is located in the cellular membranes of midgut cells,and is required for lipid export from the midgut to the hemolymphand fat body in locusts.

关键词： Locusta migratoria low-density lipoprotein receptor-related protein 2 midgut lipids transport RNAi

Technology Guides The Way

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ChinAfrica 2024年第11期16卷 34-35页

作者： zhang jianzhen LIN XIAOFENG Zhejiang Normal University College of Geography and Environmental Sciences Zhejiang Normal University

Climate change is a pressing challenge that humanity faces at *** a participant,contributor and trailblazer in global ecological conservation,China is committed to implementing multilateralism and fostering a fair system of global environmental *** abundant resources and a large population,Africa,the second-largest continent,faces significant challenges in addressing climate change and protecting the environment due to limited socio-economic development and technological infrastructure.

关键词： trail abundant humanity