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Tissue distribution of cadmium and its effect on reproduction in Spodoptera exigua

Journal of integrative Agriculture 2024年第1期23卷 195-204页

作者： Honghua Su Menglu Wu Yong Yang Yan Deng Yizhong Yang Qingming Sun College of plant Protection Yangzhou UniversityYangzhou 225009China Institute of Fruit Tree Research Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China

Vegetable fields are often contaminated by heavy metals,and Spodoptera exigua is a major vegetable pest which is stressed by heavy metals mainly by *** this study,cadmium accumulation in the tissues of *** exposed to cadmium and its effects on the growth and development of the parents and the offspring were *** the stress of different concentrations of cadmium(0.2,3.2,and 51.2 mg kg^(-1)),the cadmium content in each tissue of *** increased in a dose-dependent *** the larval stage,the highest cadmium accumulation was found in midgut in all three cadmium treatments,but at the adult stage,the highest cadmium content was found in fat *** addition,the cadmium content in ovaries was much higher than in *** *** was stressed by cadmium and the F_(2)generation was not fed a cadmium-containing diet,the larval survival,pupation rate,emergence rate and fecundity of the F_(2)generation were significantly reduced in the 51.2 mg kg^(-1)treatment compared to the corresponding *** in the F_(2)generation of the 3.2 mg kg^(-1)treatment,the fecundity was significantly lower than in the parental *** fecundity of the only-female stressed treatment was significantly lower than that of the only-male stressed treatment at the 3.2 and 51.2 mg kg^(-1)cadmium exposure *** only mothers were stressed at the larval stage,the fecundity of the F_(2)generation was significantly lower than that of the F1generation in the 51.2 mg kg^(-1)treatment,and it was also significantly lower than in the 3.2 and 0.2 mg kg^(-1)*** results of our study can provide useful information for forecasting the population increase trends under different heavy metal stress conditions and for the reliable environmental risk assessment of heavy metal pollution.

关键词： heavy metal pollution cadmium Spodoptera exigua tissue distribution reproduction

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Improving error-correcting capability in DNA digital storage via soft-decision decoding

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National Science Review 2024年第2期11卷 135-144页

作者：丁璐璐伍世刚候志浩李阿伦许亚苹冯虎潘玮华阮珏 Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural Sciences Guangdong provincial key laboratory of plant Molecular Breeding State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural University

Error-correcting codes(ECCs) employed in the state-of-the-art DNA digital storage(DDS) systems suffer from a trade-off between error-correcting capability and the proportion of redundancy. To address this issue, in this study, we introduce soft-decision decoding approach into DDS by proposing a DNA-specific error prediction model and a series of novel strategies. We demonstrate the effectiveness of our approach through a proof-of-concept DDS system based on Reed-Solomon(RS) code, named as Derrick. Derrick shows significant improvement in error-correcting capability without involving additional redundancy in both in vitro and in silico experiments, using various sequencing technologies such as Illumina, Pac Bio and Oxford Nanopore Technology(ONT). Notably, in vitro experiments using ONT sequencing at a depth of 7× reveal that Derrick, compared with the traditional hard-decision decoding strategy, doubles the error-correcting capability of RS code, decreases the proportion of matrices with decoding-failure by 229-fold, and amplifies the potential maximum storage volume by impressive 32 388-fold. Also, Derrick surpasses ‘state-of-the-art' DDS systems by comprehensively considering the information density and the minimum sequencing depth required for complete information recovery. Crucially, the soft-decision decoding strategy and key steps of Derrick are generalizable to other ECCs' decoding algorithms.

关键词： DNA digital storage (DDS) error-correcting code (ECC) soft-decision decoding error-correcting capability storage volume

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Stabilizing iridium sites via interface and reconstruction regulations for water oxidation in alkaline and acidic media

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Journal of Energy Chemistry 2024年第2期89卷 355-363,I0009页

作者： Weibin Chen Yanhui Song Lei Li Junjie Guo Zhan Lin Guangdong provincial key laboratory of plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina key laboratory of Interface Science and Engineering in AdvancedMaterials Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024ShanxiChina

Exploring effective iridium(Ir)-based electrocatalysts with stable iridium centers is highly desirable for oxygen evolution reaction(OER).Herein,we regulated the incorporation manner of Ir in Co_(3)O_(4)support to stabilize the Ir sites for effective *** anchored on the surface of Co_(3)O_(4)in the form of Ir(OH)_6 species,the created Ir-OH-Co interface leads to a limited stability and poor acidic OER due to Ir *** doped into Co_(3)O_(4)lattice,the analyses of X-ray absorption spectroscopy,in-situ Raman,and OER measurements show that the partially replacement of Co in Co_(3)O_(4)by Ir atoms inclines to cause strong electronic effect and activate lattice oxygen in the presence of Ir-O-Co interface,and simultaneously master the reconstruction effect to mitigate Ir dissolution,realizing the improved OER activity and stability in alkaline and acidic *** a result,Ir_(lat)@Co_(3)O_(4)with Ir loading of 3.67 wt%requires 294±4 mV/285±3 mV and 326±2 mV to deliver 10 mA cm^(-2)in alkaline(0.1 M KOH/1.0 M KOH)and acidic(0.5 M H_(2)SO_(4))solution,respectively,with good stability.

关键词： Interface effect Reconstruction Ir dissolution Ir-O-Co Oxygen evolution reaction

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TaSRO1 interacts with TaVP1 to modulate seed dormancy and pre-harvest sprouting resistance in wheat

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Journal of integrative plant biology 2024年第1期66卷 36-53页

作者： Shupeng Liu Li Li Wenlong Wang Guangmin Xia Shuwei Liu key laboratory of plant Development and Environmental Adaptation biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China

Dormancy is an adaptive trait which prevents seeds from germinating under unfavorable environmental *** with weak dormancy undergo pre-harvest sprouting(PHS)which decreases grain yield and *** the genetic mechanisms that regulate seed dormancy and resistance to PHS is crucial for ensuring global food *** this study,we illustrated the function and molecular mechanism of TaSRO1 in the regulation of seed dormancy and PHS resistance by suppressing *** tasro1 mutants exhibited strong seed dormancy and enhanced resistance to PHS,whereas the mutants of tavp1 displayed weak *** evidence has shown that TaVP1 is epistatic to *** evidence has shown that TaSRO1 interacts with TaVP1 and represses the transcriptional activation of the PHS resistance genes TaPHS1 and ***,TaSRO1 undermines the synergistic activation of TaVP1 and TaABI5 in PHS resistance ***,we highlight the great potential of tasro1 alleles for breeding elite wheat cultivars that are resistant to PHS.

关键词： wheat seed dormancy pre-harvest sprouting(PHS) ABA signaling vivipary

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Genome-wide identification of the pectate lyase(PEL)gene family members in Malvaceae,and their contribution to cotton fiber quality

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Journal of integrative Agriculture 2024年第10期23卷 3264-3282页

作者： Qian Deng Zeyu Dong Zequan Chen Zhuolin Shi Ting Zhao Xueying Guan Yan Hu Lei Fang zhejiang provincial key laboratory of Crop Genetic Resources the Advanced Seed InstituteCollege of Agriculture andBiotechnologyZhejiang UniversityHangzhou 300058China Hainan Institute Zhejiang UniversitySanya 572025China

Pectin is a major constituent of the plant cell *** lyase(PEL,EC 4.***.2.2)uses anti-β-elimination chemistry to cleave theα-1,4 glycosidic linkage in the homogalacturonan region of ***,limited information is available on the comprehensive and evolutionary analysis of PELs in the *** this study,we identified 597PEL genes from 10 Malvaceae *** and motif analyses revealed that these PELs are classified into six subfamilies:Clades I,II,III,IV,Va,and *** two largest subfamilies,Clades I and II,contained 237 and222 PEL members,*** members of Clades Va and Vb only contained four or five motifs,far fewer than the other *** duplication analysis showed that segmental duplication played a crucial role in the expansion of the PEL gene family in Gossypium *** PELs from Clades I,IV,Va,and Vb were expressed during the fiber elongation stage,but nearly all PEL genes from Clades II and III showed no expression in any of the investigated fiber developmental *** further performed single-gene haplotype association analysis in 2,*** accessions and 229 *** ***,14 PELs were significantly associated with fiber length and strength traits in *** with superior fiber quality,while only eight GhPEL genes were found to be significantly associated with fiber quality traits in *** findings provide important information for further evolutionary and functional research on the PEL gene family members and their potential use for fiber quality improvement in cotton.

关键词： Malvaceae pectate lyase(PEL) Gossypium species fiber quality

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Genomics,transcriptomics,and peptidomics of the greater wax moth Galleria mellonella neuropeptides and their expression in response to lead stress

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Insect Science 2024年第3期31卷 773-791页

作者： Li-Lin Luo Yang Lin Jun-Hong Linghu Wei Gong Yuan-Hong Luo Man Liu Dao-Chao Jin Guy Smagghe Tong-Xian Liu Shun-Hua Gui Tian-Ci Yi Guizhou provincial key laboratory for Agricultural Pest Management of the Mountainous Region Institute of EntomologyGuizhou UniversityGuiyangGuizhouChina Guizhou Institute of biology Guizhou Academy of SciencesGuiyangChina Institute of plant Health and Medicine Guizhou UniversityGuiyangChina

Neuropeptides are crucial in regulation of a rich variety of developmental,physiological,and behavioral functions throughout the life cycle of *** an integrated approach of multiomics,we identified neuropeptide precursors in the greater wax moth Galleria mellonella,which is a harmful pest of honeybee hives with a worldwide ***,a total of 63 and 67 neuropeptide precursors were predicted and annotated in the *** genome and transcriptome,in which 40 neuropeptide precursors were confirmed in the *** ***,we identified 12 neuropeptide precursor genes present in *** but absent in honeybees,which may be potential novel pesticide target *** hives were contaminated with heavy metals such as lead,enabling its bioaccumulation in *** bodies through the food chain,we performed transcriptome sequencing to analyze the effects of Pb stress on the mRNA expression level of *** neuropeptide *** treatment by Pb,the expression of neuropeptide F1 was found to be significantly downregulated,implying that this neuropeptide might be associated with responding to the heavy metal stress in *** study comprehensively identified neuropeptide precursors in ***,and discussed the effects of heavy metals on insect neuropeptides,with the example of *** results are valuable for future elucidation of how neuropeptides regulate physiological functions in *** and contribute to our understanding of the insect's environmental plasticity and identify potential new biomarkers to assess heavy metal toxicity in insects.

关键词： Galleria mellonella genomics heavy metal stress neuropeptide peptidomics transcriptomics

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Developing guanine base editors for G-to-T editing in rice

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Journal of integrative plant biology 2024年第8期66卷 1557-1560页

作者： Lang Liu Zhongming Zhang Chenyang Wang Fang Yan Wenxian Sun Xueping Zhou Weiguo Miao Huanbin Zhou State key laboratory for biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Department of plant Pathology China Agricultural UniversityBeijing 100193China Scientiﬁc Observing and Experimental Station of Crop Pests in Guilin Ministry of Agriculture and Rural AffairsGuilin 541399China School of plant Protection Hainan UniversityHaikou 570228China State key laboratory of Rice biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China key laboratory of Gene Editing Technologies Ministry of Agricultural and Rural AffairsSanya 572024China

Single nucleotide polymorphisms (SNPs) are widely present and related to desirable agronomic traits in *** regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated nuclease 9 (Cas9)-mediated base editors have been frequently used to correct defective alleles and create novel alleles by artificial evolution for rapid crop genetic improvement (Ma et al.,2021).

关键词： alleles agronomic base

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A pair of nuclear factor Y transcription factors act as positive regulators in jasmonate signaling and disease resistance in Arabidopsis

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Journal of integrative plant biology 2024年第9期66卷 2042-2057页

作者： Chuyu Lin Chenghao Lan Xiaoxiao Li Wei Xie Fucheng Lin Yan Liang Zeng Tao Ministry of Agriculture key laboratory of Molecular biology of Crop Pathogens and Insects Institute of BiotechnologyZhejiang UniversityHangzhou 310058China State key laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro‐products Institute of BiotechnologyZhejiang UniversityHangzhou 311400China

The plant hormone jasmonate(JA)regulates plant growth and immunity by orchestrating a genome-wide transcriptional *** the resting stage,JASMONATE-ZIM DOMAIN(JAZ)proteins act as main repressors to regulate the expression of JA-responsive genes in the JA signaling ***,the mechanisms underlying de-repression of JA-responsive genes in response to JA treatment remain ***,we report two nuclear factor Y transcription factors NF-YB2 and NF-YB3(thereafter YB2 and YB3)play key roles in such de-repression in ***2 and YB3 function redundantly and positively regulate plant resistance against the necrotrophic pathogen Botrytis cinerea,which are specially required for transcriptional activation of a set of JA-responsive genes following ***,YB2 and YB3 modulated their expression through direct occupancy and interaction with histone demethylase Ref6 to remove repressive histone ***,YB2 and YB3 physically interacted with JAZ repressors and negatively modulated their abundance,which in turn attenuated the inhibition of JAZ proteins on the transcription of JA-responsive genes,thereby activating JA response and promoting disease ***,our study reveals the positive regulators of YB2 and YB3 in JA signaling by positively regulating transcription of JA-responsive genes and negatively modulating the abundance of JAZ proteins.

关键词： histone demethylase jasmonate response JAZ repressor necrotrophic resistance nuclear factor

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Acaricidal effect of the antimicrobial metabolite xenocoumacin 1 on spider mite control

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Journal of integrative Agriculture 2024年第3期23卷 948-959页

作者： Jiaxing Wei Hong Yan Jie Ren Guangyue Li Bo Zhang Xuenong Xu Institute of plant Protection Chinese Academy of Agricultural SciencesBeijing 100193China State key laboratory for biology of plant Diseases and Insect Pests Beijing 100193China key laboratory of Natural Enemies Insects Ministry of Agriculture and Rural AffairsBeijing 100193China

The two-spotted spider mite,Tetranychus urticae Koch,is one of the most harmful pests in many agroecosystems *** effectively manage this pest,there is an urgent need to develop novel bio-active acaricides that support integrated pest management strategies targeting *** this study,we explored the acaricidal effects of xenocoumacin 1 (Xcn1) on *** and its predator Neoseiulus californicus using the highly puri?ed ***1 was extracted and purified from the cell-free supernatant of the Xenorhabdus nematophila CB6 mutant constructed by the easy promoter activated compound identi?cation (easyPACId) *** the concentration of Xcn1 exceeded 100μg mL~(–1),the survival rate of spider mite adults declined to below 40%and the fecundity was decreased by 80%at six days *** concentrations of 25 and 50μg mL~(–1),Xcn1 signi?cantly impeded spider mite development by inhibiting the ***,neither concentration had any adverse effects on the survival or reproduction of the predatory mite *** results from laboratory and semi-?eld experiments consistently demonstrated the effectiveness of the antimicrobial metabolite Xcn1 in controlling pest mites at both the molecular and physiological *** study offers a promising possibility that combines the compatible biocontrol agents of Xcn1 and predatory mites for integrated pest mite control.

关键词： pest management predatory mite Xcn1 morphology developmental inhibition transcriptome

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Dt1 inhibits SWEET-mediated sucrose transport to regulate photoperiod-dependent seed weight in soybean

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Molecular plant 2024年第3期17卷 496-508页

作者： Xiaoming Li Zhonghui Chen Haiyang Li Lin Yue Cuirong Tan Hongjie Liu Yilong Hu Yuhua Yang Xiani Yao Lingping Kong Xiang Huangi Bin Yu Chunyu Zhang Yuefeng Guan Baohui Liu Fanjiang Kong Xingliang Hou Guangdong provincial key laboratory of Applied Botany&State key laboratory of plant Diversity and Specialty Crops South China Botanical GardenChinese Academyof SciencesGuangzhou510650China Guangdong provincial key laboratory of plant Adaptation and Molecular Design Guangzhou Key Laboratory of Crop Gene EditingInnovative Center of Molecular Genetics and EvolutionSchool of Life SciencesGuangzhou UniversityGuangzhou 510006China University of Chinese Academy of Sciences Beijing 100049China College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China

Soybean is a photoperiod-sensitive short-day crop whose reproductive period and yield are markedly affected by day-length *** weight is one of the key traits determining the soybean yield;how-ever,the prominent genes that control the final seed weight of soybean and the mechanisms underlying the photoperiod's effect on this trait remain poorly *** this study,we identify SwW19 as a major locus controlling soybean seed weight by QTL mapping and determine Dt1,an orthologous gene of Arabidopsis TFL1 that is known to govern the soybean growth habit,as the causal gene of the SW19 *** showed that Dt1 is highly expressed in developing seeds and regulates photoperiod-dependent seed weight in *** analyses revealed that the Dt1 protein physically interacts with the sucrose transporter GmSWEET10a to negatively regulate the import of sucrose from seed coat to the embryo,thus modulating seed weight under long ***,Dt1 does not function in seed development under short days due to its very low ***,we discovered a novel natural allelic variant of Dt1(H4 haplotype)that decouples its pleiotropic effects on seed size and growth habit;i.e.,this variant remains functional in seed development but fails to regulate the stem growth habit of ***,our findings provide new insights into how soybean seed development responds to photoperiod at different latitudes,offering an ideal genetic component for improving soybean's yield by manipulating its seed weightandgrowth habit.

关键词： soybean seed weight photoperiod dt1 sucrose transport

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