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Stomatal dynamics are regulated by leaf hydraulic traits and guard cell anatomy in nine true mangrove species

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Plant Diversity 2024年第3期46卷 395-405页

作者： Ya-Dong Qie Qi-Wei Zhang Scott A.M.McAdam Kun-Fang Cao state key laboratory for conservation and utilization of subtropical Agro-Bioresources College of ForestryGuangxi UniversityNanning 530004China Guangxi key laboratory of Forest Ecology and conservation College of ForestryGuangxi UniversityNanning 530004China key laboratory of Ecology of Rare and Endangered Species and Environmental Protection Ministry of EducationGuangxi Normal UniversityGuilin 541001China Guangxi key laboratory of Landscape resources conservation and Sustainable utilization in Lijiang River Basin Guangxi Normal UniversityGuilin 541001China Purdue Center for Plant Biology Department of Botany and Plant PathologyPurdue UniversityWest LafayetteIN 47907USA

Stomatal regulation is critical for mangroves to survive in the hyper-saline intertidal zone where water stress is severe and water availability is highly ***,very little is known about the stomatal sensitivity to vapour pressure deficit(VPD)in mangroves,and its co-ordination with stomatal morphology and leaf hydraulic *** measured the stomatal response to a step increase in VPD in situ,stomatal anatomy,leaf hydraulic vulnerability and pressure-volume traits in nine true mangrove species of five families and collected the data of genome *** aimed to answer two questions:(1)Does stomatal morphology influence stomatal dynamics in response to a high VPD in mangroves?with a consideration of possible influence of genome size on stomatal morphology;and(2)do leaf hydraulic traits influence stomatal sensitivity to VPD in mangroves?We found that the stomata of mangrove plants were highly sensitive to a step rise in VPD and the stomatal responses were directly affected by stomatal anatomy and hydraulic ***,denser stomata was correlated with faster stomatal closure at high VPD across the species of Rhizophoraceae,and stomata size negatively and vein density positively correlated with genome *** negative leaf osmotic pressure at the full turgor(πo)was related to higher operating steady-state stomatal conductance(gs);and a higher leaf capacitance(Cleaf)and more embolism resistant leaf xylem were associated with slower stomatal responses to an increase in *** addition,stomatal responsiveness to VPD was indirectly affected by leaf morphological traits,which were affected by site salinity and consequently leaf water *** results demonstrate that mangroves display a unique relationship between genome size,stomatal size and vein packing,and that stomatal responsiveness to VPD is regulated by leaf hydraulic traits and stomatal *** work provides a quantitative framework to better understand of stomatal regulation in mangroves

关键词： Stomatal temporal kinetics Vapour-pressure deficit(VPD) Leaf water relations Leaf hydraulic vulnerability Leaf osmotic potential Genome size

Two haplotype-resolved genome assemblies for AAB allotriploid bananas provide insights into banana subgenome asymmetric evolution and Fusarium wilt control

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Plant Communications 2024年第2期5卷 243-260页

作者： Wen-Zhao Xie Yu-Yu Zheng Weidi He Fangcheng Bi Yaoyao Li Tongxin Dou Run Zhou Yi-Xiong Guo Guiming Deng Wenhui Zhang Min-Hui Yuan Pablo Sanz-Jimenez Xi-Tong Zhu Xin-Dong Xu Zu-Wen Zhou Zhi-Wei Zhou Jia-Wu Feng Siwen Liu Chunyu Li Qiaosong Yang Chunhua Hu Huijun Gao Tao Dong Jiangbo Dang Qigao Guo Wenguo Cai Jianwei Zhang Ganjun Yi Jia-Ming Song Ou Sheng Ling-Ling Chen Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China state key laboratory for conservation and utilization of subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are one of the world’s most important fruit crops and play a vital role in food security for many developing *** banana cultivars are triploids derived from inter-and intraspecific hybrid-izations between the wild diploid ancestor species Musa acuminate(AA)and ***(BB).We report two haplotype-resolved genome assemblies of the representative AAB-cultivated types,Plantain and Silk,and precisely characterize ancestral contributions by examining ancestry mosaics across the *** asymmetric evolution is observed in their subgenomes,which can be linked to frequent homol-ogous exchange *** reveal the genetic makeup of triploid banana cultivars and verify that subge-nome B is a rich source of disease resistance *** 58.5%and 59.4%of Plantain and Silk genes,respectively,are present in all three haplotypes,with>50%of genes being differentially expressed alleles in different *** observed that the number of upregulated genes in Plantain is significantly higher than that in Silk at one-week post-inoculation with Fusarium wilt tropical race 4(Foc TR4),which con-firms that Plantain can initiate defense responses faster than ***,we compared genomic and transcriptomic differences among the genes related to carotenoid synthesis and starch metabolism between Plantain and *** study provides resources for better understanding the genomic architecture of culti-vated bananas and has important implications for Musa genetics and breeding.

关键词： bananas Plantain Silk asymmetric evolution homologous exchange Fusarium wilt

Soybean(Glycine max)rhizosphere organic phosphorus recycling relies on acid phosphatase activity and specific phosphorusmineralizing-related bacteria in phosphate deficient acidic soils

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Journal of Integrative agriculture 2024年第5期23卷 1685-1702页

作者： Qianqian Chen Qian Zhao Baoxing Xie Xing Lu Qi Guo Guoxuan Liu Ming Zhou Jihui Tian Weiguo Lu Kang Chen Jiang Tian Cuiyue Liang Root Biology Center State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesCollege of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China College of Natural resources and Environment South China Agricultural UniversityGuangzhou 510642China Henan Academy of Crops Molecular Breeding Henan Academy of Agricultural SciencesZhengzhou 450002China

Bacteria play critical roles in regulating soil phosphorus(P) cycling. The effects of interactions between crops and soil P-availability on bacterial communities and the feedback regulation of soil P cycling by the bacterial community modifications are poorly understood. Here, six soybean(Glycine max) genotypes with differences in P efficiency were cultivated in acidic soils with long-term sufficient or deficient P-fertilizer treatments. The acid phosphatase(AcP) activities, organic-P concentrations and associated bacterial community compositions were determined in bulk and rhizosphere soils. The results showed that both soybean plant P content and the soil AcP activity were negatively correlated with soil organic-P concentration in P-deficient acidic soils. Soil P-availability affected the ɑ-diversity of bacteria in both bulk and rhizosphere soils. However, soybean had a stronger effect on the bacterial community composition, as reflected by the similar biomarker bacteria in the rhizosphere soils in both P-treatments. The relative abundance of biomarker bacteria Proteobacteria was strongly correlated with soil organic-P concentration and AcP activity in low-P treatments. Further high-throughput sequencing of the phoC gene revealed an obvious shift in Proteobacteria groups between bulk soils and rhizosphere soils, which was emphasized by the higher relative abundances of Cupriavidus and Klebsiella, and lower relative abundance of Xanthomonas in rhizosphere soils. Among them, Cupriavidus was the dominant phoC bacterial genus, and it was negatively correlated with the soil organic-P concentration. These findings suggest that soybean growth relies on organic-P mineralization in P-deficient acidic soils, which might be partially achieved by recruiting specific phoCharboring bacteria, such as Cupriavidus.

关键词： organic phosphorus acid phosphatase soybean bacterial community phoC-harboring bacteria rhizosphere

High-quality genome assemblies for two Australimusa bananas(Musa spp.)and insights into regulatory mechanisms of superior fiber properties

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Plant Communications 2024年第1期5卷 245-261页

作者： Run Zhou Shuo Wang Ni Zhan Weidi He Guiming Deng Tongxin Dou Xi-Tong Zhu Wen-Zhao Xie Yu-Yu Zheng Chunhua Hu Fangcheng Bi Huijun Gao Tao Dong Siwen Liu Chunyu Li Qiaosong Yang Lingqiang Wang Jia-Ming Song Jiangbo Dang Qigao Guo Ganjun Yi Ling-Ling Chen Ou Sheng Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China state key laboratory for conservation and utilization of subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are monocotyledonous plants with high genetic diversity in the Musaceae family that are cultivated mainly in tropical and subtropical *** fruits are a popular food,and the plants themselves have diverse *** genetic groups(genomes)are thought to have contributed to current banana cultivars:Musa acuminata(A genome),Musa balbisiana(B genome),Musa schizocarpa(S genome),and species of the Australimusa section(T genome).However,the T genome has not been effectively ***,we present the high-quality TT genomes of two representative accessions,Abaca(Musa textilis),with high-quality naturalfiber,and Utafun(Musa troglodytarum,Fe’i group),with abundant *** the Abaca and Utafun assemblies comprise 10 pseudochromosomes,and their total genome sizes are 613 Mb and 619 Mb,*** genome analysis revealed that the larger size of the T genome is likely attributable to rapid expansion and slow removal of *** with those of Musa AA or BB accessions or sisal(Agava sisalana),Abacafibers exhibit superior mechanical properties,mainly because of their thicker cell walls with a higher content of cellulose,lignin,and *** of MusaCesA cellulose synthesis genes peaks earlier in Abaca than in AA or BB accessions during plant development,potentially leading to earlier cellulose accumulation during secondary cell wall *** Abaca-specific expressed gene MusaMYB26,which is directly regulated by MusaMYB61,may be an important regulator that promotes precocious expression of secondary cell wall ***,MusaWRKY2 and MusaNAC68,which appear to be involved in regulating expression of MusaLAC and MusaCAD,may at least partially explain the high accumulation of lignin in *** work contributes to a better understanding of banana domestica-tion and the diverse genetic resources in the Musaceae family,thus providing resources for Musa genetic improvement.

关键词： Australimusa bananas T genome Musaceae evolution structural variations fiber

Safety assessment of a novel marine multi-stress-tolerant yeast Meyerozyma guilliermondii GXDK6 according to phenotype and whole genome-sequencing analysis

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Food Science and Human Wellness 2024年第4期13卷 2048-2059页

作者： Xueyan Mo Mengcheng Zhou Yanmei Li Lili Yu Huashang Bai Peihong Shen Xing Zhou Haojun Zhu Huijie Sun Ru Bu Chengjian Jiang state key laboratory for conservation and utilization of subtropical Agro-Bioresources Guangxi Research Center for Microbial and Enzyme Engineering TechnologyCollege of Life Science and TechnologyGuangxi UniversityNanning 530004China National Engineering Research Center for Non-Food Biorefinery State Key Laboratory of Non-Food Biomass and Enzyme TechnologyGuangxi Research Center for Biological Science and TechnologyGuangxi Academy of SciencesNanning 530007China Guangxi key laboratory for Green Processing of Sugar resources College of Biological and Chemical EngineeringGuangxi University of Science and TechnologyLiuzhou 545006China

The application of microorganisms as probiotics is limited due to lack of safety ***,a novel multi-stress-tolerant yeast Meyerozyma guilliermondii GXDK6 with aroma-producing properties was identified from marine mangrove *** safety and probiotic properties were assessed in accordance with phenotype and whole-genome sequencing *** showed that the genes and phenotypic expression of related virulence,antibiotic resistance and retroelement were rarely *** morphogenesis genes(SIT4,HOG1,SPA2,ERK1,ICL1,CST20,HSP104,TPS1,and RHO1)and phospholipase secretion gene(VPS4)were *** hyphae and phospholipase were *** one retroelement(Tad1-65_BG)was *** biogenic amines(BAs)encoding genes were absent,except for spermidine synthase(JA9_002594),spermine synthase(JA9_004690),and tyrosine decarboxylase(inx).The production of single BAs and total BAs was far below the food-defined ***6 had no resistance to common antifungal *** enzymes,such as gelatinase,DNase,hemolytic,lecithinase,and thrombin were *** toxicity test with mice demonstrated that GXDK6 is ***6 has a good reproduction ability in the simulation gastrointestinal ***6 also has a strong antioxidant ability,β-glucosidase,and inulinase *** sum up,GXDK6 is considered as a safe probiotic for human consumption and food fermentation.

关键词： Meyerozyma guilliermondii Safety assessment Probiotics Marine mangrove microorganisms Whole-genome sequencing analysis

Regulation of 2-acetyl-1-pyrroline and grain quality in early-season indica fragrant rice by nitrogen and silicon fertilization under different plantation methods

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Journal of Integrative agriculture 2024年第2期23卷 511-535页

作者： Yongjian Chen Lan Dai Siren Cheng Yong Ren Huizi Deng Xinyi Wang Yuzhan Li Xiangru Tang Zaiman Wang Zhaowen Mo state key laboratory for conservation and utilization of subtropical Agro-Bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642China Guangxi key laboratory of agricultural resources Chemistry and Biotechnology Yulin Normal UniversityYulin 537000China key laboratory for conservation and utilization of subtropical Bio-resources Education Department of Guangxi Zhuang Autonomous Region/College of Biology and PharmacyYulin Normal UniversityYulin 537000China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of Agriculture and Rural AffairsGuangzhou 510642China Guangzhou key laboratory for Science and Technology of Fragrant Rice Guangzhou 510642China key laboratory of key Technology for South agricultural Machine and Equipment Ministry of Education/College of EngineeringSouth China Agricultural UniversityGuangzhou 510642China

Fragrant rice has a high market value,and it is a popular rice type among consumers owing to its pleasant *** methods,nitrogen(N)fertilizers,and silicon(Si)fertilizers can affect the grain yield and fragrance of fragrant ***,the core commercial rice production attributes,namely the head rice yield(HRY)and 2-acetyl-1-pyrroline(2-AP)content of fragrant rice,under various nitrogen and silicon(N-Si)fertilization levels and different plantation methods remain *** field experiment in this study was performed in the early seasons of 2018 and 2019 with two popular indica fragrant rice cultivars(Yuxiangyouzhan and Xiangyaxiangzhan).They were grown under six N-Si fertilization treatments(combinations of two levels of Si fertilizer,0 kg Si ha^(−1)(Si0)and 150 kg Si ha^(−1)(Si1),and three levels of N fertilizer,0 kg N ha^(−1)(N0),150 kg N ha^(−1)(N1),and 220 kg N ha^(−1)(N2))and three plantation methods(artificial transplanting(AT),mechanical transplanting(MT),and mechanical direct-seeding(MD)).The results showed that the N-Si fertilization treatments and all the plantation methods significantly affected the HRY and 2-AP content and related parameters of the two different fragrant rice *** with the Si0N0 treatment,the N-Si fertilization treatments resulted in higher HRY and 2-AP *** rates of brown rice,milled rice,head rice,and chalky rice of the fragrant rice also improved with the N-Si fertilization *** N-Si fertilization treatments increased the activities of N metabolism enzymes and the accumulation of N and Si in various parts of the fragrant rice,and affected their antioxidant response *** key parameters for the HRY and 2-AP content were assessed by redundancy ***,the structural equation model revealed that the Si and N accumulation levels indirectly affected the HRY by affecting the N metabolism enzyme activity,N use efficiency,and grain quality of fragrant ***,high N

关键词： fragrant rice 2-AP content head rice yield mechanical planting nitrogen silicon

Polyp-Canal Reconstruction Reveals Evolution Toward Complexity in Corals

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Research 2024年第1期2023卷 417-428页

作者： Yixin Li Xin Liao Xin Wang Yuanchao Li Hongwei Zhao Yunpeng Zhao Junyuan Chen Chunpeng He Zuhong Lu state key laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China state key laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China Guangxi key lab of Mangrove conservation and utilization Guangxi Mangrove Research CenterGuangxi Academy of SciencesBeihai 536000China Hainan Academy of Ocean and Fishery Sciences Haikou 571126China state key laboratory of Marine resources utilization in South China Sea Hainan UniversityHaikou 570228China Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences39 East Beijing RoadNanjing 210008China

Modern scleractinian corals are classified into robust,complex,and basal clades through comparative molecular ***,only few morphological or biological criteria can systematically determine the evolutionary trajectories of these major scleractinian coral ***,we obtained the structural information of 21 scleractinian coral species representing robust and complex clades:High-resolution micro-computed tomography was used to reconstruct the polyp-canal systems in their colonies and to visualize the dynamic polyp growth *** found that the emergence of mesh-like canals may distinguish representatives of complex and robust *** differences in polyp-canal connections suggest distinct evolutionary trajectories among coral species:The formation of the canal network promoted the development of more complex coral structures,and coral polyps within this network formed calices of very similar volume,following precise axial growth *** influence of individual polyps on the coral colony becomes less significant as coral structures become more complex,and coral species with more complicated polyp-canal systems occupied niches more *** work supplements current evolutionary studies on reef-building corals,providing insight for further studies on coral growth patterns.

关键词： Coral representing directions

Flowering-time regulation by the circadian clock:From Arabidopsis to crops

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The Crop Journal 2024年第1期12卷 17-27页

作者： Mingkang Yang Wenjie Lin Yarou Xu Biyu Xie Baiyin Yu Liang Chen Wei Huang state key laboratory for conservation and utilization of subtropical Agro-bioresources College of Life SciencesSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Henry Fok School of Biology&agriculture Shaoguan UniversityShaoguan 512005GuangdongChina Guangdong Provincial key laboratory of Protein Function and Regulation in agricultural Organisms South China Agricultural UniversityGuangzhou 510642GuangdongChina Guangdong laboratory for Lingnan Modern agriculture Guangzhou 510642GuangdongChina Guangdong Provincial key laboratory of utilization and conservation of Food and Medicinal resources in Northern Region Shaoguan UniversityShaoguan 512005GuangdongChina

Precise timing of flowering in plants is critical for their growth and reproductive *** factor controlling flowering time is the cycle of light and darkness within a day,known as the *** are classified into long-day,short-day,and day-neutral plants based on light requirements for floral *** the molecular mechanisms that govern this differentiation remain incompletely understood,studies have consistently shown that the circadian clock plays a central role in regulating photoperiod response across diverse plant ***,there is a scarcity of reviews describing the regulatory network linking the circadian clock with photoperiodic *** review summarizes that regulatory network,focusing on the distinct roles of clock genes in long-day and short-day *** also discuss the strategies of clock gene mutations contributing to geographic variation in longday and short-day crops.

关键词： Circadian clock Photoperiod Short-day plants Long-day plants

DNA methylation in poultry:a review

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Journal of Animal Science and Biotechnology 2024年第2期15卷 509-518页

作者： Xing Ju Zhijun Wang Danfeng Cai Semiu Folaniyi Bello Qinghua Nie state key laboratory for conservation and utilization of subtropical Agro‑Bioresources Lingnan Guangdong Laboratory of AgricultureCollege of Animal ScienceSouth China Agricultural UniversityGuangzhouGuangdong 510642China Guangdong Provincial key lab of Agro‑Animal Genomics and Molecular Breeding and key lab of Chicken Genetics Breeding and ReproductionMinistry of AgricultureGuangzhouGuangdong 510642China College of Animal Science and Technology Zhejiang Agriculture and Forestry University666 Wusu RoadLin’an 311300China

As an important epigenetic modification,DNA methylation is involved in many biological processes such as animal cell differentiation,embryonic development,genomic imprinting and sex chromosome *** DNA methylation sequencing becomes more sophisticated,it becomes possible to use it to solve more zoological *** paper reviews the characteristics of DNA methylation,with emphasis on the research and application of DNA methylation in poultry.

关键词： CpG islands Differentially methylated genes Differentially methylated regions DNA methylation Poultry