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JA-mediated MYC2/LOX/AOS feedback loop regulates osmotic stress response in tea plant

Horticultural plant Journal 2024年第3期10卷 931-946页

作者： Junyan Zhu Hongrong Chen Lu Liu Xiaobo Xia Xiaomei Yan Xiaozeng Mi Shengrui Liu Chaoling Wei State key laboratory of Tea plant Biology and Utilization/key laboratory of Tea Biology and Tea Processing of ministry of agriculture/Anhui Provincial laboratory of Tea plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China

Osmotic stress caused by low-temperature,drought and salinity was a prevalent abiotic stress in plant that severely inhibited plant development and agricultural yield,particularly in tea *** acid(JA)is an important phytohormone involving in plant ***,underlying molecular mechanisms of JA modulated osmotic stress response remains *** this study,high concentration of mannitol induced JA accumulation and increase of peroxidase activity in tea *** transcriptome mined a JA signaling master,MYC2 transcription factor is shown as a hub regulator that induced by mannitol,expression of which positively correlated with JA biosynthetic genes(LOX and AOS)and peroxidase genes(PER).CsMYC2 was determined as a nuclei-localized transcription activator,furthermore,ProteinDNA interaction analysis indicated that CsMYC2 was positive regulator that activated the transcription of CsLOX7,CsAOS2,CsPER1 and CsPER3via bound with their promoters,*** of CsMYC2 expression resulted in a reduced JA content and peroxidase activity and osmotic stress tolerance of tea *** of CsMYC2 in Arabidopsis improved JA content,peroxidase activity and plants tolerance against mannitol ***,we proposed a positive feedback loop mediated by CsMYC2,CsLOX7 and CsAOS2 which constituted to increase the tolerance of osmotic stress through fine-tuning the accumulation of JA levels and increase of POD activity in tea plant.

关键词： Camellia sinensis Jasmonic acid(JA) MYC2 transcription factor Lipoxygenase(LOX) Osmotic stress Peroxidase(POD) Reactive oxygen species(ROS)

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RpUGT344J7 is involved in the reproduction switch of Rhopalosiphum padi with holocyclic life cycle

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Insect Science 2024年第4期31卷 1073-1089页

作者： Suji Wang Wenjie Huang Mengtian Li Ni Wang Xi Liu Maohua Chen Xiong Peng State key laboratory of Crop Stress Biology for Arid Areas Key Laboratory of Plant Protection Resources and Pest Management of Ministry of EducationKey Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural AffairsCollege of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi ProvinceChina

Many aphid species exhibit both cyclical parthenogenesis(CP)and the obligate parthenogenesis(OP)life history,which are genetically *** CP aphid lineages,the parthenogenetic individuals can switch from asexual to sexual reproduction quickly in response to environmental factors such as changes in photoperiod and ***,the OP aphid lineages do not undergo sexual reproduction under any *** far,mechanisms underlying the reproduction switch in CP aphids have not been fully *** padi,a serious worldwide insect pest of wheat,has both CP and OP *** diphosphate-glycosyltransferases(UGTs)are enzymes that participate in the metabolic detoxification of ***,we identified 43 RpUGT genes from *** genome and transcriptome sequences,and found that:(1)the UGT content of the CP lineage was significantly higher than that in the OP lineage at the key time points when CP lineage mainly produce virginoparae,gynoparae,and males under inducing condition,while there were no significant difference under normal conditions;(2)RpUGT344J7 gene was highly expressed during the time points when CP lineages produce gynopara and males;(3)the critical time points for CP lineages to produce virginoparaee,gynoparae,and males were affected when the CP lineages were injected with dsRpUGT344J7;(4)the knockdown of RpUGT344J7 caused a significant reduction in the total number of virginoparae,gynoparae,and males in the offspring under inducing *** findings contribute to our understanding of the molecular mechanisms underlying the quick shift from asexual to sexual reproduction in aphid species.

关键词： bird cherry-oat aphid cyclical parthenogenesis obligate parthenogenesis reproduction switch uridine diphosphate-glycosyltransferases(UGTs)

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Revealing the specific regulations of nitric oxide on the postharvest ripening and senescence of bitter melon fruit

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aBIOTECH 2024年第1期5卷 29-45页

作者： Hongwei Wang Ling Li Lili Ma Alisdair R.Fernie Anzhen Fu Chunmei Bai Zhaoze Sang Susu Guo Fan Zhang Qing Wang Yanyan Zheng Jinhua Zuo key laboratory of Vegetable Postharvest Processing Ministry of AgricultureBeijing Key Laboratory of Fruits and Vegetable Storage and ProcessingKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China)of Ministry of AgricultureKey Laboratory of Urban Agriculture(North)of Ministry of AgricultureBeijing Vegetable Research CenterInstitute of Agro-Products Processing and Food NutritionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China College of Food Science and Biotechnology Tianjin Agricultural UniversityTianjin 300392China Max Planck Institute of Molecular plant physiology 14476 Potsdam GolmGermany Institute of Food Science and Technology Chinese Academy of Agricultural SciencesBeijingChina

Bitter melon fruit is susceptible to yellowing,softening,and rotting under room-temperature storage conditions,resulting in reduced commercial *** oxide(NO)is an important signaling molecule and plays a crucial role in regulating the fruit postharvest *** this study,we investigated the effects of NO treatment on changes in sensory and firmness of bitter melon fruit during postharvest ***,transcriptomic,metabolomic,and proteomic analyses were performed to elucidate the regulatory mechanisms through which No treatment delays the ripening and senescence of bitter melon *** results show that differentially expressed genes(DEGs)were involved in fruit texture(CSLE,β-Gal,and PME),plant hormone signal transduction(ACS,JAR4,and AUX28),and fruit flavor and aroma(SUS2,LOX,and GDH2).In addition,proteins differentially abundant were associated with fruit texture(PLY,PME,and PGA)and plant hormone signal transduction(PBL15,JAR1,and PYL9).Moreover,No significantly increased the abundance of key enzymes involved in the phenylpropanoid biosynthetic pathway,thus enhancing the disease resistance and alleviating softening of bitter melon ***,differential metabolites mainly included phenolic acids,terpenoids,and *** results provide a theoretical basis for further studies on the physiological changes associated with postharvest ripening and senescence of bitter melon fruit.

关键词： Bitter melon NO treatment Postharvest Ripening and senescence

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A vicinal oxygen chelate protein facilitates viral infection by triggering the unfolded protein response in Nicotiana benthamiana

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Journal of Integrative plant Biology 2024年第7期66卷 1481-1499页

作者： Zhihong Guo Ning Jiang Menglin Li Hongfang Guo Qi Liu Xinyu Qin Zongying Zhang Chenggui Han Ying Wang ministry of agriculture and Rural Affairs key laboratory of Pest Monitoring and Green Management College of Plant ProtectionChina Agricultural UniversityBeijing 100193China

Vicinal oxygen chelate(VOC)proteins are members of an enzyme superfamily with dioxygenase or non-dioxygenase ***,the biological functions of VOC proteins in plants are poorly ***,we show that a VOC in Nicotiana benthamiana(NbVOC1)facilitates viral ***1 was significantly induced by infection by beet necrotic yellow vein virus(BNYVV).Transient overexpression of NbVOC1 or its homolog from Beta vulgaris(BvVOC1)enhanced BNYVV infection in ***,which required the nuclear localization of *** with this result,overexpressing NbVOC1 facilitated BNYVV infection,whereas,knockdown and knockout of NbVOC1 inhibited BNYVV infection in transgenic *** ***1 interacts with the basic leucine zipper transcription factors bZIP17/28,which enhances their self-interaction and DNA binding to the promoters of unfolded protein response(UPR)-related *** propose that bZIP17/28 directly binds to the NbVOC1 promoter and induces its transcription,forming a positive feedback loop to induce the UPR and facilitating BNYVV ***,our results demonstrate that NbVOC1 positively regulates the UPR that enhances viral infection in plants.

关键词： beet necrotic yellow vein virus bZIP17/28 Nicotiana benthamiana unfolded protein response VOC1

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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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Two ABCI family transporters,OsABCI15 and OsABCI16,are involved in grain-filling in rice

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Journal of Genetics and Genomics 2024年第5期51卷 492-506页

作者： Bin Ma Xiubiao Cao Xiaoyuan Li Zhong Bian Qi-Qi Zhang Zijun Fang Jiyun Liu Qun Li Qiaoquan Liu Lin Zhang Zuhua He Jiangsu key laboratory of Crop Genomics and Molecular Breeding/Zhongshan Biological Breeding laboratory/key laboratory of plant Functional Genomics of the ministry of Education/Jiangsu key laboratory of Crop Genetics and physiology Agricultural College of Yangzhou UniversityYangzhouJiangsu 225009China Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Jiangsu Key Laboratory of Crop Genetics and PhysiologyYangzhou UniversityYangzhouJiangsu 225009China National key laboratory of plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology&EcologyChinese Academy of SciencesShanghai 200032China Institute of Biotechnology Hangzhou Academy of Agricultural SciencesHangzhouZhejiang 310024China Joint International Research laboratory of agriculture and Agri-Product Safety of the ministry of Education Yangzhou UniversityYangzhouJiangsu 225009China

Seed development is critical for plant reproduction and crop yield,with panicle seed-setting rate,grain-filling,and grain weight being key seed characteristics for yield ***,few genes are known to regulate grain ***,we identify two adenosine triphosphate(ATP)-binding cassette(ABC)I-type transporter genes,OsABCI15 and OsABCI16,involved in rice *** genes are highly expressed in developing seeds,and their proteins are localized to the plasma membrane and ***,knockout of OsABCI15 and OsABCI16 results in a significant reduction in seed-setting rate,caused predominantly by the severe empty pericarp phenotype,which differs from the previously reported low seed-setting phenotype resulting from failed *** analysis indicates that OsABCI15 and OsABCI16 participate in ion homeostasis and likely export ions between filial tissues and maternal tissues during grain ***,overexpression of OsABCI15 and OsABCI16 enhances the seed-setting rate and grain yield in transgenic plants and decreases ion accumulation in brown ***,the OsABCI15/16 orthologues in maize exhibit a similar role in kernel development,as demonstrated by their disruption in transgenic ***,ourﬁndings reveal the important roles of two ABC transporters in cereal grain filling,highlighting their value in crop yield improvement.

关键词： ABC transporters Rice Grain filling Ion homeostasis Grain yield

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Auxin-brassinosteroid crosstalk:Regulating rice plant architecture and grain shape

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The Crop Journal 2024年第4期12卷 953-963页

作者： Meidi Wu Jing Zhou Qian Li Dunfan Quan Qingwen Wang Yong Gao Jiangsu key laboratory of Crop Genomics and Molecular Breeding/key laboratory of plant Functional Genomics of the ministry of Education/Jiangsu key laboratory of Crop Genetics and physiology Yangzhou UniversityYangzhou 225009JiangsuChina Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of EducationYangzhou UniversityYangzhou 225009JiangsuChina

Rice(Oryza sativa)plant architecture and grain shape,which determine grain quality and yield,are modulatedby auxin and brassinosteroid via regulation of cell elongation and *** review the signaltransduction of these h... 详细信息

关键词： Auxin Brassinosteroid Auxin-brassinosteroid crosstalk plant architecture Grain shape

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Effect of biochar application on rice,wheat,and corn seedlings in hydroponic culture

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Journal of Environmental Sciences 2024年第1期135卷 379-390页

作者： Yingjie Yin Jikai Li Sihang Zhu Qing Chen Chong Chen Yukui Rui Jianying Shang College of Land Science and Technology China Agricultural UniversityKey Laboratory of Plant-Soil InteractionsMinistry of Educationand Key Laboratory of Arable Land Conservation in North ChinaMinistry of Agriculture and Rural AffairsBeijing 100193China Agricultural Management Institute Ministry of Agriculture and Rural AffairsBeijing 102208China College of Resources and Environmental Sciences China Agricultural UniversityBeijing Key Laboratory of Farmland Soil Pollution Prevention and RemediationBeijing 100193China

In recent years,biochar has attracted considerable attention for soil quality improvement and carbon sequestration due to its unique physicochemical ***,the mechanism by which biochar application negatively affects the growth of crop seedlings has not been fully *** this study,a hydroponic experiment was conducted to evaluate the response of rice,wheat,and corn seedlings to biochar application(CK,0 g/L;BC1,0.5 g/L;and BC2,1.0 g/L).Compared with the CK treatment,the BC1 and BC2 treatments decreased the fresh shoot and root weights of rice and corn seedlings(P0.05).For the contents of nutrient elements in seedlings,both BC1 and BC2 treatments hindered the roots from absorbing Fe and Cu and increased the uptake of Ca and *** with the CK treatment,the translocation factor(TF)values of Ca,Mn,and Zn were significantly decreased especially in rice seedlings(35.3%-36.8%,68.7%-76.5%,and 29.8%-22.0%,respectively)under the BC1 and BC2 treatments,while only Mn was significantly decreased in wheat and corn seedlings(P<0.05).Transmission electron microscope(TEM)analysis of root cross-sections showed that nano-sized biochar particles(10~23 nm)were found in the root cells under BC2 treatment *** findings reveal that a large amount of biochar application can reduce nutrient absorption and translocation,and hinder rice,wheat,and corn seedlings,particularly rice seedling,in hydroponic system.

关键词： Biochar Toxicity Seedling growth Hydroponic cultivation

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The CBL-interacting protein kinase OsCIPK1 phosphorylated by SAPK10 positively regulates responses to ABA and osmotic stress in rice

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The Crop Journal 2024年第2期12卷 364-374页

作者： Caihua Qin Xing Fan Qianqian Fang Lan Ni Mingyi Jiang College of Life Sciences State Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationKey Laboratory of Crop Physiology Ecology and Production ManagementMinistry of AgricultureNanjing Agricultural UniversityNanjing 210095JiangsuChina

SubclassⅢsucrose nonfermenting1-related protein kinase 2s(SnRK2s)function in ABA and abiotic stress responses by unknown *** found that osmotic stress/ABA-activated protein kinase 10(SAPK10),a member of rice SnRK2s,physically interacted with CBL-interacting protein kinase 1(OsCIPK1).OsCIPK1 expression was up-regulated by ABA and PEG treatment,and overexpression increased the ABA sensitivity of seed germination and root growth and plant osmotic stress *** stress or ABA-induced activation of OsCIPK1 is dependent on ***10 phosphorylates Thr-24 of OsCIPK1 in vitro,and this phosphorylation increases the activity of OsCIPK1 and positively regulates the function of OsCIPK1 in ABA responses and plant osmotic stress *** study suggests that OsCIPK1 is a direct phosphorylated substrate of SAPK10,and SAPK10-mediated phosphorylation of OsCIPK1 functions in ABA signaling and increases rice osmotic stress tolerance.

关键词： Rice ABA Osmotic stress OsCIPK1 SAPK10

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Unveiling the protective role of biofilm formation on the photoaging of microplastics

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Science China Technological Sciences 2024年第10期67卷 3067-3078页

作者： ZHANG HaiYu LIU Peng ZHANG JiaYu DAI JiaMin ZHANG XinRui ZHANG ZiXuan JIA HanZhong key laboratory of plant Nutrition and the Agri-environment in Northwest China Ministry of AgricultureCollege of Natural Resources and EnvironmentNorthwest A&F University key laboratory of Organic Compound Pollution Control Engineering School of Environmental and Chemical EngineeringShanghai University

In natural water, microplastics（MPs） inevitably undergo microbial colonization to form biofilm, while the effect of biofilm formation on the photoaging of MPs remains unknown. This study systematically investigated the photoaging behavior of disposable box-derived polypropylene（PPMPs） and polystyrene（PSMPs） mediated by formed biofilm in water. After incubating in Weihe water samples for 105 d, the biofilm was validated to form in PPMPs and PSMPs, with higher formation in PSMPs. In particular, biofilm formation inhibited the photoaging of PPMPs and PSMPs, with an 11.1% and 50.6% decrease in photooxidation compared to their virgin counterparts after 20 d of ultraviolet（UV） irradiation. Moreover, the photoaging route of MPs such as the reaction priority of functional groups（e.g., C–H, C=O, and benzene ring） was altered, indicating the important role of biofilm formation in the photoaging process of MPs. The protective effect of the biofilm was mainly caused by the role of optical light filters that absorbed UV energy by sacrificing themselves. Also, as the main attacker on MPs, the production of reactive oxygen species（ROS, mainly1O2and ·OH） was inhibited by biofilm, which was mainly responsible for the decreased photoaging of MPs. This study revealed the important role of biofilm in the photoaging process of MPs and suggested a higher resistance of（micro）plastics in natural water than that in the laboratory using pure MPs, which contributed to a deeper understanding of the environmental fate and pollution of MPs.

关键词： microplastics biofilm photoaging physical shielding reactive oxygen species

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