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Phyton-International Journal of Experimental Botany 2022年第4期91卷 773-789页

作者： Huaqiao Ding Lihui Mao Qingcheng Zou Wei Hu Xuerui Cao Qing Dong zhejiang institute of landscape plants and flowers Hangzhou311251China

Snapdragon(Antirrhinum majus)is one of the most widely cultivated grass flowers in the *** transcription factors,VQ proteins and their interactions play crucial roles in plant response to abiotic ***,little is known about WRKY and VQ gene families in *** the present study,WRKY and VQ genes and their interactions were comprehensively analyzed in snapdragon using bioinformatics approaches,and their expression in response to drought and cold stresses was examined using real-time PCR.A total of 67 AmWRKY genes were identified in snapdragon,which were classified into different groups or subgroups based on phylogenetic *** in the same group or sub-groups exhibited similar exon-intron structure and conserved motifs *** these WRKY genes,16 and 22 genes were found to differentially express under drought and cold stresses,respectively.A total of 32 AmVQ genes were identified,of which 10 and 18 were found to differentially express under drought and cold stresses,*** WRKY-VQ or WRKY-WRKY interaction relationships were predicted for 11 cold-responsive genes,suggesting that they might exist in the same response pathway to cold *** results lay a foundation for further studies on roles of WRKY and VQ genes and their interactions in regulating abiotic responses in snapdragon.

关键词： Snapdragon WRKY genes family VQ genes family gene expression abiotic stress

Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 46-51页

作者： Yiying Zhu Hesong Wang Anzhi Zhang School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience

Characterization and function of Tomato yellow leaf curl virus-derived small RNAs generated in tolerant and susceptible tomato varieties

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Journal of Integrative Agriculture 2016年第8期15卷 1785-1797页

作者： BAI Miao YANG Guo-shun CHEN Wen-ting LIN Run-mao LING Jian MAO Zhen-chuan XIE Bing-yan College of Horticulture and landscape Hunan Agricultural University institute of Vegetables and flowers Chinese Academy of Agricultural Sciences

supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China （20134320120013）;the Natural Science Foundation of Hunan Province, China （14JJ3095）

关键词： Tomato yellow leaf curl virus virus-induced RNA silencing virus-derived small RNA degradome

Molecular cloning,characterization and promoter analysis of LbgCWIN1 and its expression profiles in response to exogenous sucrose during in vitro bulblet initiation in lily

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Horticultural Plant Journal 2024年第2期10卷 545-555页

作者： Cong Gao Shiqi Li Yunchen Xu Yue Liu Yiping Xia Ziming Ren Yun Wu Genomics and Genetic Engineering Laboratory of Ornamental plants Institute of Landscape ArchitectureCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouZhejiang 310058China Laboratory of Flower Bulbs Department of Landscape ArchitectureSchool of Civil Engineering and ArchitectureZhejiang Sci-Tech UniversityHangzhouZhejiang 310018China

Lily(Lilium spp.) is an important ornamental flower, which is mainly propagated by bulbs. Cell wall invertases(CWINs), which catalyze the irreversibly conversion of sucrose into glucose and fructose in the extracellular space, are key enzymes participating in sucrose allocation in higher plants. Previous studies have shown that CWINs play an essential role in bulblet initiation process in bulbous crops, but the underlying molecular mechanism remains unclear. Here, a CWIN gene of Lilium brownii var. giganteum(Lbg) was identified and amplified from genomic DNA. Quantitative RT-PCR assays revealed that the expression level of LbgCWIN1 was highly upregulated exactly when the endogenous starch degraded in non-sucrose medium during in vitro bulblet initiation in Lbg. Phylogenetic relationship, motif, and domain analysis of LbgCWIN1 protein and CWINs in other plant species showed that all sequences of these CWIN proteins were highly conserved. The promoter sequence of LbgCWIN1 possessed a number of alpha-amylase-, phytohormone-, light-and stress-responsive cis-elements. Meanwhile, β-glucuronidase(GUS) assay showed that the 459 bp upstream fragment from the translational start site displayed maximal promoter activity. These results revealed that LbgCWIN1 might function in the process of in vitro bulblet initiation and be in the response to degradation of endogenous starch.

关键词： Lilium brownii var.giganteum LbgCWIN1 Phylogenetic analysis Promoter analysis Bulblet initiation

A novel strategy to enhance resistance to Cucumber mosaic virus in tomato by grafting to transgenic rootstocks

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Journal of Integrative Agriculture 2016年第9期15卷 2040-2048页

作者： BAI Miao CHEN Wen-ting XIE Bing-yan YANG Guo-shun College of Horticulture and landscape Hunan Agricultural University institute of Vegetables and flowers Chinese Academy of Agricultural Sciences

Cucumber mosaic virus（CMV） can infect a wide range of host species. For the lacking of CMV resistant varieties of tomato, RNA interference（RNAi） can be used as a fast and effective method for the generation of transgenic resistant varieties. In this current study, five intron-spliced hairpin RNA（ihp RNA） plant expression vectors aimed at five genes of CMV have been constructed. Transgenic tomatoes were obtained by Agrobacterium tumefaciens-mediated transformation with expression vectors. Highly resistant generations of transgenic plants were employed as rootstocks and grafted onto non-transgenic tomatoes that resulted in the successful transfer of resistance to the scions. Using a novel method of plant cuttings for rootstock propagation, we obtained large quantities of disease-resistant material. Further, this method produces scions that can remain undetectable for transgenic resistance marker genes that may provide novel approaches to evade collective concerns about genetically-modified organism（GMO） biosafety.

关键词： Cucumber mosaic virus(CMV) graft RNA silencing Solanum lycopersicum virus resistance

Abiotic stress treatment reveals expansin like A gene OfEXLA1 improving salt and drought tolerance of Osmanthus fragrans by responding to abscisic acid

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Horticultural Plant Journal 2024年第2期10卷 573-585页

作者： Bin Dong Qianqian Wang Dan Zhou Yiguang Wang Yunfeng Miao Shiwei Zhong Qiu Fang Liyuan Yang Zhen Xiao Hongbo Zhao School of landscape Architecture Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden plants HangzhouZhejiang 311300China Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden plants HangzhouZhejiang 311300China

Sweet osmanthus(Osmanthus fragrans) is a having general approval aromatic tree in China that is widely applied to landscaping and gardening. However, the evergreen tree adaptability is limited by many environmental stresses. Currently, limited information is available regarding the genetic analysis and functional identification of expansin genes in response to abiotic stress in sweet osmanthus. In this study, a total of 29 expansin genes were identified and divided into four groups by genome-wide analysis from the sweet osmanthus genome. Transcriptome and quantitative Real-time PCR analysis showed that the cell wall-localized protein expansin-like A(OfEXLA1) gene was significantly induced by salt and drought treatment. Histochemical GUS staining of transgenic Arabidopsis lines in which GUS activity was driven with the OfEXLA1 promoter, GUS activity was significantly induced by salt, drought, and exogenous abscisic acid(ABA). In yeast, we found OfEXLA1overexpression significantly improved the population of cells compared with wild-type strains after NaCl and polyethylene glycol(PEG)treatment. Additionally, OfEXLA1 overexpression not only promoted plant growth, but also improved the salt and drought tolerance in Arabidopsis. To gain insight into the role of ABA signaling in the regulation of OfEXLA1 improving abiotic tolerance in sweet osmanthus, four differentially expressed ABA Insensitive 5(ABI5)-like genes(OfABL4, OfABL5, OfABL7, and OfABL8) were identified from transcriptome, and dualluciferase(dual-LUC) and yeast one hybrid(Y1H) assay showed that OfABL4 and OfABL5 might bind to OfEXLA1 promoter to accumulate the OfEXLA1 expression by responding to ABA signaling to improve abiotic tolerance in sweet osmanthus. These results provide the information for understanding the molecular functions of expansin-like A gene and molecular breeding of sweet osmanthus in future.

关键词： Osmanthus fragrans Abiotic tolerance Expansin Abscisic acid

Transcriptome profile analysis of the accompanying migratory parasitic wasp Aenasius bambawalei(=Aenasius arizonensis girault)(Hymenoptera:Encyrtidae):Genes related to fertilization involved at different stage of ovary development

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BIOCELL 2022年第1期46卷 195-205页

作者： JUAN ZHANG JUN HUANG YAYUAN TANG XIUZHEN LONG Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests Guangxi Academy of Agricultural SciencesNanning530007China zhejiang institute of landscape plants and flowers Zhejiang Xiaoshan Institute of Cotton&Bast Fiber CropsHangzhou311251China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products Institute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou310021China

Age-related declines in fertilization success have been reported for a wide range of *** fertilization of parasitic wasps is closely related to egg production and sperm *** bambawalei(Hymenoptera:Encyridae)is a key parasitic wasp of the important invasive mealybug Phenacoccus solenopsis(Hemiptera:Pseudococcidae).The female offspring ratio of this parasitic wasp was declined with parental age in mass rearing under laboratory *** investigate the molecular mechanisms involved in the reproduction of ***,an extensive analysis of the impact of age on transcriptome profile of mated ovaries of this wasp was performed by comparing the gene expression profiles of various maternal ages:the early stage(ES),the intermediate stage(IS),and the advanced stage(AS).In total,358 differentially expressed genes were identified,with 17.60%(63 genes)of the changes associated with greater expression in ***,the expression of serine protease 47 precursor,serine protease inhibitor 3/4,glucose dehydrogenase,fatty acyl-CoA reductase 1-like,major royal jelly,and acyl-CoA delta(11)desaturase-like was detected by real-time fluorescence quantitative(RT-qPCR).The results showed that fertilization related genes exhibited a stage-specific *** production and sperm storage genes in *** were significantly modified in the transcriptome,providing a starting point for the genetic dissection of fertilization.

关键词： Phenacoccus solenopsis Egg production Sperm storage Transcriptomics Fertilization Aenasius bambawalei

Soil properties drive the bacterial community to cadmium contamination in the rhizosphere of two contrasting wheat(Triticum aestivum L.)genotypes

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Journal of Environmental Sciences 2023年第6期128卷 117-128页

作者： Min Lu Lukuan Huang Qiong Wang Xuerui Cao Qiang Lin Zhenli He Ying Feng Xiaoe Yang Key Laboratory of Environmental Remediation and Ecosystem Health Ministry of Education(MOE)College of Environmental and Resources SciencesZhejiang UniversityHangzhou 310058China Tea Research institute Shandong Academy of Agricultural SciencesJinan 250100China College of Ecology Taiyuan University of TechnologyTaiyuan 030024China zhejiang institute of landscape plants and flowers Hangzhou 311251China University of Florida Institute of Food and Agricultural SciencesIndian River Research and Education CenterFort PierceFL 34945USA

Cadmium(Cd)bioavailability in the rhizosphere makes an important difference in grain Cd accumulation in ***,pot experiments combined with 16S rRNA gene sequencing were conducted to compare the Cd bioavailability and bacterial community in the rhizosphere of two wheat(Triticum aestivum L.)genotypes,a low-Cd-accumulating genotype in grains(LT)and a high-Cd-accumulating genotype in grains(HT),grown on four different soils with Cd *** showed that there was non-significant difference in total Cd concentration among four ***,except for black soil,DTPA-Cd concentrations in HT rhizospheres were higher than those of LT in fluvisol,paddy soil and purple *** of 16S rRNA gene sequencing showed that soil type(52.7%)was the strongest determinant of root-associated community,while there were still some differences in rhizosphere bacterial community composition between twowheat *** specifically colonized in HT rhizosphere(Acidobacteria,Gemmatimonadetes,Bacteroidetes and Deltaproteobacteria)could participate inmetal activation,whereas LT rhizosphere was highly enriched by plant growth-promoting *** addition,PICRUSt2 analysis also predicted high relative abundances of imputed functional profiles related to membrane transport and amino acid metabolism in HT *** results revealed that the rhizosphere bacterial community may be an important factor regulating Cd uptake and accumulation in wheat and indicated that the high Cd-accumulating cultivar might improve Cd bioavailability in the rhizosphere by recruiting taxa related to Cd activation,thus promoting Cd uptake and accumulation.

关键词： Cadmium(Cd) Bioavailability Rhizosphere Bacterial community Soil type Wheat genotypes

Tissue Culture of Calla Lily (Zantedeschia spreng.): An Updated Review on the Present Scenario and Future Prospects

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Phyton-International Journal of Experimental Botany 2023年第8期92卷 2413-2428页

作者： Xuan Sun Xue Wang Bijaya Sharma Subedi Yin Jiang Di Wang Rongxin Gou Guojun Zhang Wenting Xu Zunzheng Wei institute of Grassland Flowers and EcologyBeijing Academy of Agriculture and Forestry SciencesBeijing100097China College of Horticultural Science&Technology Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative UtilizationHebei Normal University of Science&TechnologyQinhuangdao066004China Department of Agroecology and Plant Health The Robert H.Smith Faculty of AgricultureFood and EnvironmentThe Hebrew University of JerusalemRehovot7610001Israel zhejiang institute of landscape plants and flowers Zhejiang Academy of Agricultural SciencesHangzhou311251China

The calla lily(Zantedeschia spreng.)is a bulbousﬂower native to the tropical regions of *** lily has gained signiﬁcant popularity in the international market owing to its intricate morphology and prolonged flowering *** such advantages,for two sub-groups of calla lily,known as group Zantedeschia and group Aestivae,there are challenges in terms of hybrid production due to the‘plastome-genome incompatibility’*** culture is a fundamental biotechnological tool used in gene editing research,with a focus on disease resistance andﬂower color in calla lily breeding *** present review provides a brief background on the history and development of the calla lily,as well as a comprehensive and critical summary of calla lily tissue culture *** regeneration pathways for both group Zantedeschia and group Aestivae can be divided into de novo organogenesis and somatic *** groups are capable of obtaining replants through such ***,only some species in group Aestivae have been reported to be successful in the somatic embryogenesis *** the present review,special attention was paid to the inﬂuence of explant types,plant growth regulators,and culture conditions on both de novo organogenesis and somatic embryogenesis in calla lily tissue ***,future research prospects were determined based on integrated analysis of recent progress in calla lily tissue culture research.

关键词： Calla lily tissue culture organogenesis somatic embryogenesis

Sex ratio, floral traits, and genetic variation of androdioecious Osmanthus fragrans L. (Oleaceae) and the implications for maintenance of high male frequency

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Ornamental Plant Research 2022年第1期2卷 230-236页

作者： Lihua Zhou Liyuan Yang Qiu Fang Bin Dong Yiguang Wang Shiwei Zhong Zheng Xiao Hongbo Zhao zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden plants School of Landscape and ArchitectureZhejiang A&F UniversityHangzhou 311300ZhejiangChina

Several examples of androdioecy appear to have evolved from dioecy and have low male frequency(<0.5).However,the evolutionary pathway to androdioecy in Oleaceae may come from *** fragrans *** a 1:1 sex ratio in nature... 详细信息

Several examples of androdioecy appear to have evolved from dioecy and have low male frequency(flowers per node,and larger anther in all three *** characteristic demonstrated that males have more male advantage than *** genetic structure of *** is genetically homogeneous at the species level,and most variations exist within a *** percentage of variation among populations(13%)and between males and hermaphrodites(0%)is ***,genetic differentiation was very low between genders not only among populations but also in the same *** genetic variation could be attributed to the occurrence of high levels of xenogamy between ***,high male frequency and more male fitness advantage in males are the essential conditions for this mating system,which plays an important role during population reproduction and *** 1:1 sex ratio could be the result of integrative effects of sexual system,mating system,and reproductive success.

关键词： traits ratio flowers