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Characteristics and phytotoxicity of hydrochar-derived dissolved organic matter:Effects of feedstock type and hydrothermal temperature

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Journal of Environmental Sciences 2025年第3期149卷 139-148页

作者： Qianqian Lang Xuan Guo Chao Wang Lingyao Li Yufei Li Junxiang Xu Xiang Zhao Jijin Li Bensheng Liu Qinping Sun Guoyuan Zou Institute of Plant Nutrition and Resources Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China

The dissolved organic matter(DOM)with high mobility and reactivity plays a crucial role in *** this study,the characteristics and phytotoxicity ofDOMreleased fromthe hydrochars prepared from different feedstocks(cowmanure,corn stalk and Myriophyllum aquaticum)under three hydrothermal carbonization(HTC)temperatures(180,200 and 220°C)were *** results showed that the hydrochars had high dissolved organic carbon content(20.15 to 37.65 mg/g)and its content showed a gradual reduction as HTC temperature *** fluorescent components including mixed substance of fulvic acid-like and humic acid-like substances(C1,30.92%-58.32%),UVA humic acid-like substance(C2,25.27%-29.94%)and protein-like substance(C3,11.74%-41.92%)were identified in hydrochar DOM by excitation emission matrix spectra coupled with parallel factor *** HTC temperature increased the relative proportion of aromatic substances(C1+C2)and humification degree of hydrochar DOM from cow manure,while it presented adverse effects on the hydrochar DOM from corn stalk and *** principal component analysis suggested that feedstock type and HTC temperature posed significant effects on the characteristics of hydrochar ***,seed germination test of all hydrochar DOM demonstrated that the root length was reduced by 8.88%-26.43%in contrast with control,and the germination index values were 73.57%-91.12%.These findings provided new insights into the potential environmental effects for hydrochar application in soil.

关键词： Hydrochar Hydrothermal temperature Dissolved organic matter Excitation emission matrix Parallel factor analysis Phytotoxicity

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Integrated metabolomics and proteomics analyses reveal the molecular mechanism underlying the yellow leaf phenotype of Camellia sinensis

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Horticultural Plant Journal 2025年第1期11卷 417-430页

作者： Nana Li Weizhong He Yufan Ye Mingming He Taimei Di Xinyuan Hao Changqing Ding Yajun Yang Lu Wang Xinchao Wang National Center for Tea Plant Improvement Tea Research InstituteChinese Academy of Agricultural Sciences/Key Laboratory of BiologyGenetics and Breeding of Special Economic Animals and PlantsMinistry of Agriculture and Rural AffairsHangzhouZhejiang 310008China Tea research Institute Lishui Academy of Agricultural and Forestry SciencesLishuiZhejiang 323000China College of Horticulture Fujian Agriculture and Forestry University/Key Laboratory of Tea Science in Universities of Fujian ProvinceFuzhouFujian 350002China

The tea plant cultivar‘Zhonghuang 2'(ZH2)possesses albino-induced yellow leaves that contain low levels of catechins but high contents of amino ***,the molecular mechanism underlying the yellow leaf phenotype of ZH2 has not been elucidated *** the current research,the yellow shoots(ZH2-Y)and naturally converted green shoots(ZH2-G)of ZH2 were studied using metabolic and proteomic profiling for a better understanding of the mechanism underlying phenotype *** total,107 differentially changed metabolites(DCMs)were identified from the GC-MS-based metabolomics,and 189 differentially accumulated proteins(DAPs)were identified from the tandem mass tag(TMT)-based quantitative ***,integrated analysis revealed that‘porphyrin and chlorophyll metabolism',‘carbon fixation in photosynthetic organisms',and‘phenylpropanoid biosynthesis'pathways were commonly enriched for DAPs and *** further found that the inhibition of chlorophyll biosynthesis,the deficiency of photosynthetic proteins and the imbalance of the ROS-scavenging system were the crucial reasons responsible for the chlorosis,chloroplast abnormality and photooxidative damage of ZH2 ***,our research combines metabolomics and proteomics approaches to uncover the molecular mechanism leading to the yellow leaf phenotype of tea plants.

关键词： Tea plant Chlorophyll-deficient mutant Chlorophyll biosynthesis Photosynthetic protein Antioxidant capacity Photooxidative stress

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SlPGR5/SlPGRL1 pathway-dependent cyclic electron transport regulates photoprotection and chloroplast quality in tomato plants

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Horticultural Plant Journal 2025年第1期11卷 211-226页

作者： Xiaolong Yang Yumeng Zhang Ting Liu Jiali Shi Mingfang Qi Riyuan Chen Yufeng Liu Tianlai Li College of Horticulture South China Agricultural UniversityGuangzhouGuangdong 510642China College of Horticulture Shenyang Agricultural UniversityShenyangLiaoning 110866China Jiuquan Academy of Agricultural Sciences JiuquanGansu 735099China

The essential photoprotective role of proton gradient regulation 5(PGR5)-dependent cyclic electron flow(CEF)has been reported in Arabidopsis,rice,and ***,its functional assessment has not been performed in tomato *** this study,we focused on elucidate the function of SlPGR5 and SlPGR5-like photosynthetic phenotype 1(PGRL1)in *** performed RNA interference and found that SlPGR5/SlPGRL1-suppressed transformants exhibited extremely low CO_(2)assimilation capacity,their photosystem I(PSI)and PSII were severely photoinhibited and chloroplasts were obviously *** SlPGR5/SlPGRL1-suppressed plants almost completely inhibited CEF and Y(ND),and PSII photoinhibition may be directly related to the inability to produce sufficient proton motive force to induce *** transgenic plants overexpressing SlPGR5 and SlPGRL1 driven by 35S promoter capable alleviate photoinhibition of plants under low night *** transcriptomic and proteomic analyses suggested that the nuclear gene transcription and turnover of chloroplast proteins,including the plastoglobule-related proteins,were closely related to SlPGR5/SlPGRL1 pathway dependent *** bridge relationship between CEF and chloroplast quality maintenance was a novel report to our *** conclusion,these results revealed the regulatory mechanism of the SlPGR5/SlPGRL1 pathway in photoprotection and maintenance of chloroplast function in tomato,which is crucial for reduce yield loss,especially under adverse environmental conditions.

关键词： Tomato Cyclic electron transport SlPGR5/SlPGRL1 Photoprotection Chloroplast quality Plastoglobulus

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Identification of long InDels through whole genome resequencing to fine map qIF05-1 for seed isoflavone content in soybean(Glycine max L. Merr.)

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Journal of Integrative agriculture 2025年第1期24卷 85-100页

作者： Jia Jia Huan Wang Ximeng Yang Bo Chen Ruqian Wei Qibin Ma Yanbo Cheng Hai Nian Key Laboratory of Plant Molecular Breeding of Guangdong Province/College of agriculture South China Agricultural UniversityGuangzhou 510642China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources South China Agricultural UniversityGuangzhou 510642China Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology South China Agricultural UniversityGuangzhou 510642China

Soybean seed isoflavones are a type of secondary metabolites that can provide health and nutrition benefits for humans. In our previous study, a stable quantitative trait locus(QTL) qIF05-1 controlling the seed isoflavone content in soybean was detected on chromosome(Chr.) 05 in a recombinant inbred line(RIL) population from a cross of Huachun 2×Wayao. In this study, the parental lines were re-sequenced using the Illumina Solexa system with deep coverage. A total of 63,099 polymorphic long insertions and deletions(InDels)(≥15 bp)were identified between the parents Huachun 2 and Wayao. The InDels were unevenly distributed on 20chromosomes of soybean, varying from 1,826 in Chr. 12 to 4,544 in Chr. 18. A total of 10,002 long InDels(15.85% of total) were located in genic regions, including 1,139 large-effect long InDels which resulted in truncated or elongated protein sequences. In the qIF05-1 region, 68 long InDels were detected between the two parents. Using a progeny recombination experiment and genotype analysis, the qIF05-1 locus was mapped into a 102.2 kb genomic region, and this region contained 12 genes. By RNA-seq data analysis, genome sequence comparison and functional validation through ectopic expression in Arabidopsis thaliana, Glyma.05G208300(described as GmEGL3), which is a basic helix-loop-helix(bHLH) transcription factor in plants, emerged as the most likely confirmed gene in qIF05-1. These long InDels can be used as a type of complementary genetic method for QTL fine mapping, and they can facilitate genetic studies and molecular-assisted selection breeding in soybean.

关键词： soybean seed isoflavone content whole genome re-sequencing long InDels fine map

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A PHYB-PIF4-auxin module promotes tomato graft formation in response to elevated ambient temperature

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Horticultural Plant Journal 2025年第1期11卷 227-238页

作者： Xianmin Meng Feng Zhang Wencai Yang Qingmao Shang State Key Laboratory of Vegetable Biobreeding Key Laboratory of Horticultural Crop Biology and Germplasm Innovation(Ministry of Agriculture)Institute of Vegetables and FlowersChinese Academy of Agriculture SciencesBeijing 100081China Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops Department of Vegetable ScienceCollege of HorticultureChina Agricultural UniversityBeijing 100193China

Grafting is an effective technique for increasing the resistance of vegetables to biotic and abiotic *** has been widely applied to produce solanaceous and melon *** is an important external factor affecting graft ***,the molecular mechanism by which external ambient temperature affects tomato graft formation remains *** this study,we demonstrated that elevating ambient temperature during grafting to 35℃ for more than 24 h after grafting accelerated vascular *** generated self-or heterografted combinations between phyB1B2 and pif4 loss-of-function mutant and wild-type plants,and were mutants unresponsive to graft formation at elevated ambient *** addition,elevated ambient temperature induced SlPIF4 expression during ***4 directly binds the promoters of auxin biosynthesis genes SlYUCCAs and activates their *** investigation revealed auxin accumulation in the graft junction under elevated ambient *** results illuminate the mechanism by which the PHYB-PIF4-auxin module promotes tomato graft formation in response to elevated ambient temperature.

关键词： Graft formation Tomato Temperature Vascular Auxin

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Fine mapping and identification of CaTTG1,a candidate gene that regulates the hypocotyl anthocyanin accumulation in Capsicum annuum

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Horticultural Plant Journal 2025年第1期11卷 264-274页

作者： Jin Wang Yao Dai Luzhao Pan Ying Chen Li Dai Yanqing Ma Xiaoxun Zhou Wu Miao Muhammad Rizwan Hamid Xuexiao Zou Feng Liu Cheng Xiong Engineering research Center for Germplasm Innovation and New Varieties Breeding of Horticultural Crops Key Laboratory for Vegetable Biology of Hunan ProvinceCollege of HorticultureHunan Agricultural UniversityChangshaHunan 410000China Hunan Xiangyan Seed Industry Co. LTDChangshaHunan 410000China

Pepper(Capsicum annuum L.)is a typical self-pollinating crop with obvious heterosis in ***,the use of morphological markers during the pepper seedling stage is crucial for pepper *** color of hypocotyl is widely used as a phenotypic marker in crossing studies of *** accessions generally have purple hypocotyls,which are mainly due to the anthocyanin accumulation in seedlings,and green hypocotyls are rarely observed in *** we reported the characterization of a green hypocotyl mutant of pepper,Cha1,which was identified from a pepper ethyl methanesulfonate(EMS)mutant *** mapping revealed that the causal gene,CaTTG1,belonging to the WD40 repeat family,controlled the green hypocotyl phenotype of the ***-induced gene silencing(VIGS)confirmed that CaTTG1 regulated anthocyanin ***-seq data showed that expression of structural genes CaDFR,CaANS,and CaUF3GT in the anthocyanin biosynthetic pathway was significantly decreased in Cha1 compared to the wild *** two-hybrid(Y2H)experiments also confirmed that CaTTG1 activated the synthesis of anthocyanin structural genes by forming a MBW complex with CaAN1 and *** summary,this study provided a green hypocotyl mutant of pepper,and the Kompetitive Allele Specific PCR(KASP)marker developed based on the mutation site of the underlying gene would be helpful for pepper breeding.

关键词： Pepper CaTTG1 Anthocyanin Hypocotyl color Fine-mapping

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A telomere-to-telomere genome assembly of the cultivated peanut

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Molecular Plant 2025年第1期18卷 5-8页

作者： Xiaobo Wang Ziqi Sun Feiyan Qi Zhiyuan Zhou Pei Du Lei Shi Wenzhao Dong Bingyan Huang Suoyi Han Stefano Pavan Meng Zhang Mengjie Cui Jing Xu Hua Liu Li Qin Zhongxin Zhang Xiaodong Dai Wei Gao Lijuan Miao Ruifang Zhao Juan Wang Mengmeng Wang Chenyang Zhi Yaojun Hu Huanhuan Zhao Linjie Chen Xiaodong Jin Yanhui Sun Zheng Zheng Xinyou Zhang The Shennong Laboratory Zhengzhou 450002China Institute of Crop Molecular Breeding Henan Academy of Agricultural SciencesZhengzhou 450002China Henan Provincial Key Laboratory for Genetic Improvement of Oil Crops Zhengzhou 450002China National Innovation Centre for Bio-breeding Industry Xinxiang 453000China Department of Soil Plant and Food SciencesUniversity of Bari Aldo MoroBari 70126Italy

Dear Editor,Cultivated peanut(peanut in short)(Arachis hypogaea,2n=4x=40,genome type AABB)is a legume crop serving globally as a crucial source of edible oil and *** peanut reference genome sequences obtained for the cultivars"Tifrunner,""Shitouqi,"and"Fuhuasheng"were assembled or patched using third-generation sequencing technologies and significantly contributed to advancements in peanut genetics and breeding(Bertioli et al.,2019;Chen et al.,2019;Zhuang et al.,2019).However,unresolved gaps persist in these assemblies,particularly in regions of biological importance such as centromeres and telomeres(Supplemental Figure 1),hindering comprehensive exploration of their functional and evolutionary significance.

关键词： breeding cultivar Figure

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AvERF73 positively regulates waterlogging tolerance in kiwifruit by participating in hypoxia response and mevalonate pathway

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Horticultural Plant Journal 2025年第1期11卷 162-174页

作者： Danfeng Bai Yunpeng Zhong Shichao Gu Xiujuan Qi Leiming Sun Miaomiao Lin Ran Wang Yukuo Li Chungen Hu Jinbao Fang National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crop Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhouHenan 450009China Key Laboratory of Horticultural Plant Biology College of Horticulture&Forestry Sciences of Huazhong Agricultural UniversityWuhanHubei 430070China

Waterlogging stress is one of the greatest environmental threats to kiwifruit growth and ***-VII proteins have been demonstrated to play pivotal roles in regulating plant tolerance to ***,the genome-wide role of ERF-VII in kiwifruit waterlogging stress tolerance remains ***,we report the function and regulatory network of an ERF-VII transcription factor located to the nucleus,Av ERF73,in kiwifruit waterlogging *** of Av ERF73 in Arabidopsis thaliana and *** *** enhanced waterlogging tolerance in transgenic ***,we performed transcriptome analysis(RNA-seq)and DNA affinity purification sequencing(DAP-seq)to explore the regulatory mechanism of Av ***-seq coupled with DAP-seq showed that Av ERF73 might directly activate Ac NAC022 involved in the“cellular response to hypoxia”process and Ac HMGS1 involved in the mevalonate pathway to respond to waterlogging,which were also confirmed by a dual-luciferase reporter *** on our results,we propose a putative working model for controlling waterlogging tolerance by Av ERF73 in kiwifruit.

关键词： Actinidia ERF-VII Waterlogging stress RNA-seq DAP-seq

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Impacts of three virus combinations on grape composition and fruit quality of Vitis vinifera‘Kyoho’

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Horticultural Plant Journal 2025年第1期11卷 446-450页

作者： Fang Ren Shane Qiao Xudong Fan Guojun Hu Zongshan Zhou Yafeng Dong National Center for Eliminating Viruses from Deciduous Fruit Trees Research Institute of PomologyChinese Academy of Agriculture SciencesXingchengLiaoning 125100China

Grapevine(Vitis vinifera L.)is one of the most economically and culturally important perennial fruit crops in the world for fresh consumption and wine *** disease is one of the most important diseases in *** is difficult to control and causes great harm to grapevine physiology and significant economic losses in grape production(Endeshaw et al.,2014;Montero et al.,2016b;Wang et al.,2023;Yang et al.,2024).More than 80viruses have been reported to infect grapevines worldwide,and more than 20 grapevine viruses have been reported in china(Umer et al.,2019;Fan et al.,2020).Grapevine leafroll disease(GLD)is one of the most widespread and economically damaging viral diseases in grapevine around the world,and it can cause an30%-40%yield reduction per hectare without any control measures(Atallah et al.,2012).GLD is caused by a complex of virus species named grapevine leafroll-associated viruses(GLRaVs),among which GLRaV-3 is the most prevalent and economically important virus(Ling et al.,2004;Naidu et al.,2014;Martelli,2017).GLRaV-3 infection can impact vine growth,yield,berry weight,and fruit quality of some grapevine cultivars(Vega et al.,2011;Endeshaw et al.,2014;Alabi et al.,2016;Montero et al.,2016a,2016b;Cabaleiro et al.,2021;Lee et al.,2023).In addition to GLRaVs,other viruses have also been found to adversely affect grape growth and fruit *** example,Grapevine red blotchassociated virus(GRBV)can compromise crop yield and berry chemical composition,delay ripening,and damage the flavor and aroma properties of must and wine(Blanco-Ulate et al.,2017).

关键词： crops cultivar Vitis

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Metabolome and RNA-seq reveal discrepant metabolism and secretory metabolism profile in skeletal muscle between obese and lean pigs at different ages

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Science china Life Sciences 2025年

作者： Liu Guo Junfei Xu Wenyue Zhou Sisi Chen Hanjing Shi Mengmeng Han Zekun Yang Yehui Duan Weijun Pang Yulong Yin Fengna Li Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences University of Chinese Academy of Sciences Laboratory of Animal Fat Deposition and Muscle Development College of Animal Science and Technology Northwest A&F University College of Advanced Agricultural Sciences University of Chinese Academy of Sciences

Metabolites and metabolism-related gene expression profiles in skeletal muscle change dramatically under obesity, aging and metabolic disease. Since obese and lean pigs are ideal models for metabolic research. Here, we compared metabolome and transcriptome of Longissimus dorsi(LD) muscle between Taoyuan black(TB, obese) and Duroc(lean) pigs at different ages. We defined the “window phase” of intramuscular fat(IMF) deposition in TB pig, which has significantly higher IMF than Duroc pig. Our results displayed discrepant lipid composition and different expression genes(DEGs) enriched in lipid metabolism, and both metabolome and transcriptome analyses revealed stronger energy expenditure and more active amino acid and protein metabolism in Duroc pig. 10 up-and 51 down-regulated biomarker metabolites with age-and breed-specificity were identified. Potential secretory metabolites, including organic acid(fumaric acid, succinate,malic acid, and gamma-aminobutyric acid), amino acid(L-lysine, and L-glutamic acid), lipid(2-hydroxyisovaleric acid, and L-carnitine) were demonstrated a significant correlation with IMF deposition. Our research highlights the huge difference of metabolic spectrum in skeletal muscle between obese and lean model and muscle-derived secretory metabolites might act as an ambassador of intercellular communication to regulate systematic metabolism.

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