Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11173
Nancai Pei
{"title":"Building a Subtropical Forest Community Phylogeny Based on Plant DNA Barcodes from Dinghushan Plot","authors":"Nancai Pei","doi":"10.3724/SP.J.1143.2012.11173","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11173","url":null,"abstract":"","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"96 1","pages":"263"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73683103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11105
Mingying Zhang, Lu Lu, De‐Zhu Li, Hong Wang
In the APG III, the family Berberidaceae is placed in the Ranunculales within the basal Eudicots. Here, the phylogenetic relationships within Berberidaceae were reconstructed using the Maximum Likelihood method on sequence data from four genomic regions (nuclear ribosomal 26S rDNA and plastid rbcL, matK, and trnL-F). Based on previously reported phylogenetic tree and pollen observation, the pollen morphologies of 16 genera of this family were investigated. Pollen plesiomorphy,synapomorphy, and evolutionary pattern were revealed by Fitch Parsimony analysis. Ten pollen characters, including dispersal unit, polarity, shape class, size, aperture number, aperture position, ectoaperture shape, supratectal elements, tectum sculpture, and exine thickness, were evaluated to reassess phylogenetic relationships. Tracing pollen character evolution showed that Berberidaceae possessed a series of plesiomorphies, such as the monad pollen unit, isopolarity, spheroidal shape and medium size. Apolarity, multiple apertures and global aperture state were found to be synapomorphies for the Berberidoideae, strongly supporting the monophyly of this subfamily. Triaperture was a synapomorphy for both Podophylloideae and Nandinoideae, respectively. Berberidoideae and Nandinoideae shared the synapomorphy supratectal elements absent, which distinguished them from Podophylloideae, and supported the sister relationship between Berberidoideae and Nandinoideae. Pollen evolutionary significance of some genera was discussed, and several pollen characters were suggested to be used for defining certain genera, such as Bongardia and Ranzania.
{"title":"Evolution of Pollen in the Family Berberidaceae","authors":"Mingying Zhang, Lu Lu, De‐Zhu Li, Hong Wang","doi":"10.3724/SP.J.1143.2012.11105","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11105","url":null,"abstract":"In the APG III, the family Berberidaceae is placed in the Ranunculales within the basal Eudicots. Here, the phylogenetic relationships within Berberidaceae were reconstructed using the Maximum Likelihood method on sequence data from four genomic regions (nuclear ribosomal 26S rDNA and plastid rbcL, matK, and trnL-F). Based on previously reported phylogenetic tree and pollen observation, the pollen morphologies of 16 genera of this family were investigated. Pollen plesiomorphy,synapomorphy, and evolutionary pattern were revealed by Fitch Parsimony analysis. Ten pollen characters, including dispersal unit, polarity, shape class, size, aperture number, aperture position, ectoaperture shape, supratectal elements, tectum sculpture, and exine thickness, were evaluated to reassess phylogenetic relationships. Tracing pollen character evolution showed that Berberidaceae possessed a series of plesiomorphies, such as the monad pollen unit, isopolarity, spheroidal shape and medium size. Apolarity, multiple apertures and global aperture state were found to be synapomorphies for the Berberidoideae, strongly supporting the monophyly of this subfamily. Triaperture was a synapomorphy for both Podophylloideae and Nandinoideae, respectively. Berberidoideae and Nandinoideae shared the synapomorphy supratectal elements absent, which distinguished them from Podophylloideae, and supported the sister relationship between Berberidoideae and Nandinoideae. Pollen evolutionary significance of some genera was discussed, and several pollen characters were suggested to be used for defining certain genera, such as Bongardia and Ranzania.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"2 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75103090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.12038
Ruijuan Xue, Gao Chen, Shengzhuo Huang, Weibang Sun
: The chemical composition of the elaiosome of Sloanea hemsleyana (Elaeocarpaceae) was analyzed by gas chromatography鄄mass spectrometry. The relative content of each compound was determined by area normalization. E鄄 leven compounds were identified, accounting for 97. 6% of the total oil composition. The major compounds were Palmitic acid (36. 0% ) and Oleic acid (35. 0% ), which were favour food for ant. And it was demonstrated that the seed of S. hemsleyana can be dispersed by ant Pheidole sp. in the habitat of Kunming Botanical Garden. As for the defensive function of elaiosome of S. hemsleyana need to be identified in field.
{"title":"Preliminary Study of Chemical composition of the Elaiosome of Sloanea hemsleyana (lto) and Its Ecological Function to Attract Dispersal Agent","authors":"Ruijuan Xue, Gao Chen, Shengzhuo Huang, Weibang Sun","doi":"10.3724/SP.J.1143.2012.12038","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.12038","url":null,"abstract":": The chemical composition of the elaiosome of Sloanea hemsleyana (Elaeocarpaceae) was analyzed by gas chromatography鄄mass spectrometry. The relative content of each compound was determined by area normalization. E鄄 leven compounds were identified, accounting for 97. 6% of the total oil composition. The major compounds were Palmitic acid (36. 0% ) and Oleic acid (35. 0% ), which were favour food for ant. And it was demonstrated that the seed of S. hemsleyana can be dispersed by ant Pheidole sp. in the habitat of Kunming Botanical Garden. As for the defensive function of elaiosome of S. hemsleyana need to be identified in field.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"21 1","pages":"483"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74450297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.12143
Chun-Xia Zeng, Jun-bo Yang, Jing Yang, T. Yi, Chun-Yan Lin
The next-generation Flora,or iFlora is an open application system (intelligent device) for plant species identification and data extraction.It derives from the accumulation of traditional plant taxonomy and related disciplines,but also integrates modern DNA sequencing technologies for collection and management of species information based on high-speed computer digitization,network technology and cloud computing analysis platform.Through two-way communication with this system,on one hand,new data and technology can be constantly integrated to enrich the content and function of the iFlora,on the other hand,to acquire the needed species information by means of variously identified pathways to achieve a rapid,accurate and convenient identification of species,so that it meets the cognitive demands of not only professional organizations but also the general public at different levels.The aim of this paper is to:1) explain the construction of the iFlora application device,the component libraries (including information on voucher specimens,molecular materials and DNA sequences),and their importance;2) point out the crucial role of digitizing species information and the open cloud computing service platform for data analysis because of the high integration and assembling capabilities of iFlora;and 3) discuss the challenges faced by the iFlora projects and outline possible intelligent device and application prospects in the near future.
{"title":"A Proposed Framework for iFlora","authors":"Chun-Xia Zeng, Jun-bo Yang, Jing Yang, T. Yi, Chun-Yan Lin","doi":"10.3724/SP.J.1143.2012.12143","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.12143","url":null,"abstract":"The next-generation Flora,or iFlora is an open application system (intelligent device) for plant species identification and data extraction.It derives from the accumulation of traditional plant taxonomy and related disciplines,but also integrates modern DNA sequencing technologies for collection and management of species information based on high-speed computer digitization,network technology and cloud computing analysis platform.Through two-way communication with this system,on one hand,new data and technology can be constantly integrated to enrich the content and function of the iFlora,on the other hand,to acquire the needed species information by means of variously identified pathways to achieve a rapid,accurate and convenient identification of species,so that it meets the cognitive demands of not only professional organizations but also the general public at different levels.The aim of this paper is to:1) explain the construction of the iFlora application device,the component libraries (including information on voucher specimens,molecular materials and DNA sequences),and their importance;2) point out the crucial role of digitizing species information and the open cloud computing service platform for data analysis because of the high integration and assembling capabilities of iFlora;and 3) discuss the challenges faced by the iFlora projects and outline possible intelligent device and application prospects in the near future.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"461 1","pages":"555"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80264253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.12008
Li-Fang Zhu, Hongxu Dong, Shi-Xiong Yang, Hong-Tao Zhu, Min Xu, S. Zeng, Chong-ren Yang, Ying-Jun Zhang
Camellia taliensis belonging to Camellia sect. Thea (Theaceae) is distributed from the western and southwestern areas of Yunnan Province, China to the north of Myanmar. Known as the "wild" tea plant, it has been commonly used for making tea by the local people of its growing area. It is the first investigation of the volatile constituents of the fresh tender leaves of C.taliensis and green teas produced from its tender and older leaves. The volatile constituents were obtained by hydrodistillation and analyzed by GC and GC-MS. Ninety-one compounds were identified. The results showed that the main compositions of volatile oil of the fresh tender leaves were hexadecanoic acid (30.52%), linoleic acid (19.82%), phytol (8.75%), and geraniol (2.54%), while monoterpenoids (58.51%) composing of linalool (28.43%), hotrienol (1.13%), α-terpineol (11.68%), nerol (4.92%) and geraniol (12.34%) were the major volatile components of its green tea product. From the fresh leaves to the green tea products, 28 aroma components were formed. Among then, the content of (Z, Z, Z)-9, 12, 15-octadecatrien-1-ol (peak 77) was up to 1.21% (from tender leaves) and 11.2% (from older leaves), respectively. The DPPH and ABTS+ radical scavenging assays demonstrated a moderate activity of essential oil from the three essential oils of C.taliensis.
{"title":"Chemical Compositions and Antioxidant Activity of Essential Oil from Green Tea Produced from Camellia taliensis (Theaceae) in Yuanjiang, Southwestern China*","authors":"Li-Fang Zhu, Hongxu Dong, Shi-Xiong Yang, Hong-Tao Zhu, Min Xu, S. Zeng, Chong-ren Yang, Ying-Jun Zhang","doi":"10.3724/SP.J.1143.2012.12008","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.12008","url":null,"abstract":"Camellia taliensis belonging to Camellia sect. Thea (Theaceae) is distributed from the western and southwestern areas of Yunnan Province, China to the north of Myanmar. Known as the \"wild\" tea plant, it has been commonly used for making tea by the local people of its growing area. It is the first investigation of the volatile constituents of the fresh tender leaves of C.taliensis and green teas produced from its tender and older leaves. The volatile constituents were obtained by hydrodistillation and analyzed by GC and GC-MS. Ninety-one compounds were identified. The results showed that the main compositions of volatile oil of the fresh tender leaves were hexadecanoic acid (30.52%), linoleic acid (19.82%), phytol (8.75%), and geraniol (2.54%), while monoterpenoids (58.51%) composing of linalool (28.43%), hotrienol (1.13%), α-terpineol (11.68%), nerol (4.92%) and geraniol (12.34%) were the major volatile components of its green tea product. From the fresh leaves to the green tea products, 28 aroma components were formed. Among then, the content of (Z, Z, Z)-9, 12, 15-octadecatrien-1-ol (peak 77) was up to 1.21% (from tender leaves) and 11.2% (from older leaves), respectively. The DPPH and ABTS+ radical scavenging assays demonstrated a moderate activity of essential oil from the three essential oils of C.taliensis.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"23 1","pages":"409"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81757027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11089
Zeng-Yuan Wu, Hong Wang, De‐Zhu Li
The inflorescence of Elatostema is not only one of the key characters helpful to understand the evolution鄄 ary trend in various infra鄄generic taxa, but also plays important role in the delimitation of its sections and series. In this paper, based on careful examinations of inflorescences from several voucher specimens including type and litera鄄 tures, the description of inflorescences of three species in this genus was presented.
{"title":"Supplementary Description of Inflorescences of Three Species in Elatostema (Urticaceae)","authors":"Zeng-Yuan Wu, Hong Wang, De‐Zhu Li","doi":"10.3724/SP.J.1143.2012.11089","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11089","url":null,"abstract":"The inflorescence of Elatostema is not only one of the key characters helpful to understand the evolution鄄 ary trend in various infra鄄generic taxa, but also plays important role in the delimitation of its sections and series. In this paper, based on careful examinations of inflorescences from several voucher specimens including type and litera鄄 tures, the description of inflorescences of three species in this genus was presented.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"158 1","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82915810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11182
Chun-Jing Zhou, Songdong Zhou, De-Qing Huang, Xingjin He
Karyotypes of 25 populations of 15 species in Allium section Rhiziridium from China were analyzed to discuss the evolutionary mechanisms of Allium section Rhiziridium and cytogeography of some species. Root tips for the study of mitotic chromosomes were obtained from potted plants and pretreated with paradichlorobenzene at room temperature for 9 hours. After 12-24 hours fixation in 1∶3 acetic-alcohol, the root tips were macerated in 1 mol · L-1 HC1 for 9 minutes at 60℃ and then stained and squashed in carbol fuchsin. Karyotype asymmetry was assessed by As.K%. Results showed that taxa investigated were diploid or tetraploid. Furthermore, the karyotype types were 1A, 2A or 2B according to Stebbins’ karyotype classification. Karyotypes of A.tekesicola, A.tianschanicum, A.beesianum and A.spirale were reported for the first time. Combined with previous karyotype studies, we suggested that: (1) The basic chromosome number of Allium section Rhiziridium from China is x=8. (2) The karyotype types evolutionary trend of Allium section Rhiziridium from China is 1A→2A→2B→2C . (3) Satellite chromosomes of Allium section Rhiziridium from China are varied in numbers and shapes. (4) Polyploidy and chromosome structural rearrangement are two important evolution patterns in Allium section Rhiziridium from China. (5) A.cyaneum and A.nu- tans have exploited new niches through polyploidy and asexual reproduction.
{"title":"Karyotypes of 25 Populations of 15 Species in Allium Section Rhiziridium from China","authors":"Chun-Jing Zhou, Songdong Zhou, De-Qing Huang, Xingjin He","doi":"10.3724/SP.J.1143.2012.11182","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11182","url":null,"abstract":"Karyotypes of 25 populations of 15 species in Allium section Rhiziridium from China were analyzed to discuss the evolutionary mechanisms of Allium section Rhiziridium and cytogeography of some species. Root tips for the study of mitotic chromosomes were obtained from potted plants and pretreated with paradichlorobenzene at room temperature for 9 hours. After 12-24 hours fixation in 1∶3 acetic-alcohol, the root tips were macerated in 1 mol · L-1 HC1 for 9 minutes at 60℃ and then stained and squashed in carbol fuchsin. Karyotype asymmetry was assessed by As.K%. Results showed that taxa investigated were diploid or tetraploid. Furthermore, the karyotype types were 1A, 2A or 2B according to Stebbins’ karyotype classification. Karyotypes of A.tekesicola, A.tianschanicum, A.beesianum and A.spirale were reported for the first time. Combined with previous karyotype studies, we suggested that: (1) The basic chromosome number of Allium section Rhiziridium from China is x=8. (2) The karyotype types evolutionary trend of Allium section Rhiziridium from China is 1A→2A→2B→2C . (3) Satellite chromosomes of Allium section Rhiziridium from China are varied in numbers and shapes. (4) Polyploidy and chromosome structural rearrangement are two important evolution patterns in Allium section Rhiziridium from China. (5) A.cyaneum and A.nu- tans have exploited new niches through polyploidy and asexual reproduction.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"44 1","pages":"120"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89819766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11167
Bin Yu, L. Liang, Xiang Lisa Li, Peng Liu, Xiao-jing Liu, Liangjun Zhu
Ophiocordyceps sinensis is an entomophagous fungus endemic to alpine regions of the Tibetan Plateau.It has been long known by its synonym Cordyceps sinensis both in scientific and non-scientific communities.O.sinensis,a unique entomophagous fungus parasitizing the larvae of the genus Thitarodes,mainly distributed in the alpine meadows of the Qinghai-Tibet Plateau,is known as a valuable invigorant of traditional Chinese medicine for centuries in China.In order to research characteristics of O.sinensis,taking sample from Dalag County to laboratory for measuring content of amino acids and elements,and comparing the results with other examples selected from Sichuan,Yunnan and Tibet.The results show that content of amino acids is ample in O.sinensis,and the level of contents is clearly visible from basal caterpillar to stroma.Comparison with examples of Yunnan,Sichuan and Tibet,the amino acids is in average level.In addition,there were abundant mineral elements in O.sinensis.
{"title":"Biological Characteristics Analysis of Ophiocordyceps sinensis","authors":"Bin Yu, L. Liang, Xiang Lisa Li, Peng Liu, Xiao-jing Liu, Liangjun Zhu","doi":"10.3724/SP.J.1143.2012.11167","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11167","url":null,"abstract":"Ophiocordyceps sinensis is an entomophagous fungus endemic to alpine regions of the Tibetan Plateau.It has been long known by its synonym Cordyceps sinensis both in scientific and non-scientific communities.O.sinensis,a unique entomophagous fungus parasitizing the larvae of the genus Thitarodes,mainly distributed in the alpine meadows of the Qinghai-Tibet Plateau,is known as a valuable invigorant of traditional Chinese medicine for centuries in China.In order to research characteristics of O.sinensis,taking sample from Dalag County to laboratory for measuring content of amino acids and elements,and comparing the results with other examples selected from Sichuan,Yunnan and Tibet.The results show that content of amino acids is ample in O.sinensis,and the level of contents is clearly visible from basal caterpillar to stroma.Comparison with examples of Yunnan,Sichuan and Tibet,the amino acids is in average level.In addition,there were abundant mineral elements in O.sinensis.","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"46 1","pages":"478"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88233482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3724/SP.J.1143.2012.11152
Chongyang Wang, Bin Yang, Zhaorong He, Hao-Bo Wang
{"title":"Analysis on the Geographical Distribution Characteristics of Angiopteridaceae and Its Causes in Yungui Plateau and Hengduan Mountains,China","authors":"Chongyang Wang, Bin Yang, Zhaorong He, Hao-Bo Wang","doi":"10.3724/SP.J.1143.2012.11152","DOIUrl":"https://doi.org/10.3724/SP.J.1143.2012.11152","url":null,"abstract":"","PeriodicalId":20246,"journal":{"name":"Plant Diversity and Resources","volume":"25 1","pages":"317"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83253656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：