1
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Guo YJ, Zhang T, Ya JD, Zhang W, Shen XY, Han ZD, Ni JB, Su JY, Tong YH. Vacciniumusneoides (Ericaceae), a new species from Yunnan, China. PhytoKeys 2023; 236:187-195. [PMID: 38162924 PMCID: PMC10756209 DOI: 10.3897/phytokeys.236.112658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
Vacciniumusneoides (Ericaceae), a new species from Fugong County of Yunnan Province, China is described and illustrated. This new species belongs to Vacciniumsect.Calcicolus and is most similar to V.brachyandrum, but differs in its branches hanging down, much smaller leaf blades, shorter inflorescences and pedicels, non-glandular tomentellate or densely pubescent inflorescence rachis and pedicels, densely white-pubescent hypanthium and pilose filaments.
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Affiliation(s)
- Yong-Jie Guo
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting Zhang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Ji-Dong Ya
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Academy of Biodiversity, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Wei Zhang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiu-Ying Shen
- Fugong Branch of Nujiang Administration of Gaoligongshan National Nature Reserve, Fugong, 673400, Yunnan, China
| | - Zhou-Dong Han
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jing-Bo Ni
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jian-Yong Su
- South China National Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Yi-Hua Tong
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
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Tong YH, Ye PZ, Ding JH, Huang WC, Huang W, Ni JB. Vacciniumchaozhouense (Ericaceae), a new species from East Guangdong, China. PhytoKeys 2023; 236:113-119. [PMID: 38106513 PMCID: PMC10724862 DOI: 10.3897/phytokeys.236.108732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/03/2023] [Indexed: 12/19/2023]
Abstract
Vacciniumchaozhouense (Ericaceae), a new species from East Guangdong Province, China is described and illustrated. This new species is morphologically similar to V.wrightii by having flowers with persistent and leaf-like bracts, long pedicels, and white spherical-urceolate corollas, but is distinguished by having glandular trichomes on the abaxial surface of the leaf blade, shorter pedicels, sparsely pilose corolla ridges, and anther thecae longer than the tubules. A key to the new species and morphologically similar species is also provided.
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Affiliation(s)
- Yi-Hua Tong
- State Key Laboratory of Plant Diversity and Specialty Crops & Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, Guangzhou, 510650, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Pei-Zhao Ye
- Chao’an Fenghuangshan Provincial Nature Reserve, Chaozhou, Guangdong, 515655, ChinaChao’an Fenghuangshan Provincial Nature ReserveChaozhouChina
| | - Jian-Hong Ding
- Chao’an Fenghuangshan Provincial Nature Reserve, Chaozhou, Guangdong, 515655, ChinaChao’an Fenghuangshan Provincial Nature ReserveChaozhouChina
| | - Wei-Chao Huang
- Chao’an Fenghuangshan Provincial Nature Reserve, Chaozhou, Guangdong, 515655, ChinaChao’an Fenghuangshan Provincial Nature ReserveChaozhouChina
| | - Wei Huang
- Chao’an Fenghuangshan Provincial Nature Reserve, Chaozhou, Guangdong, 515655, ChinaChao’an Fenghuangshan Provincial Nature ReserveChaozhouChina
| | - Jing-Bo Ni
- State Key Laboratory of Plant Diversity and Specialty Crops & Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, Guangzhou, 510650, ChinaSouth China National Botanical GardenGuangzhouChina
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3
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Cai ZY, Niu ZY, Zhang YY, Tong YH, Vu TC, Goh WL, Sungkaew S, Teerawatananon A, Xia NH. Phylogenomic analyses reveal reticulate evolution between Neomicrocalamus and Temochloa (Poaceae: Bambusoideae). Front Plant Sci 2023; 14:1274337. [PMID: 38111884 PMCID: PMC10726129 DOI: 10.3389/fpls.2023.1274337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/14/2023] [Indexed: 12/20/2023]
Abstract
Neomicrocalamus and Temochloa are closely related to bamboo genera. However, when considered with newly discovered and morphologically similar material from China and Vietnam, the phylogenetic relationship among these three groups was ambiguous in the analyses based on DNA regions. Here, as a means of investigating the relationships among the three bamboo groups and exploring potential sources of genomic conflicts, we present a phylogenomic examination based on the whole plastome, single-nucleotide polymorphism (SNP), and single-copy nuclear (SCN) gene datasets. Three different phylogenetic hypotheses were found. The inconsistency is attributed to the combination of incomplete lineage sorting and introgression. The origin of newly discovered bamboos is from introgressive hybridization between Temochloa liliana (which contributed 80.7% of the genome) and Neomicrocalamus prainii (19.3%), indicating that the newly discovered bamboos are closer to T. liliana in genetics. The more similar morphology and closer distribution elevation also imply a closer relationship between Temochloa and newly discovered bamboos.
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Affiliation(s)
- Zhuo-Yu Cai
- Key Laboratory of Plant Resources, Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- South China National Botanical Garden, Guangzhou, China
| | - Zheng-Yang Niu
- Key Laboratory of Plant Resources, Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- South China National Botanical Garden, Guangzhou, China
| | - You-Yuan Zhang
- Key Laboratory of Plant Resources, Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Quality Management Office, Guiyang Vocational and Technical College, Guiyang, China
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources, Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- South China National Botanical Garden, Guangzhou, China
- State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Tien Chinh Vu
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Wei Lim Goh
- Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Kampar, Perak, Malaysia
| | - Sarawood Sungkaew
- Department of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok, Thailand
| | | | - Nian-He Xia
- Key Laboratory of Plant Resources, Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- South China National Botanical Garden, Guangzhou, China
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4
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Tong YH, Niu ZY, Cai ZY, Ni JB, Xia NH. Kengiochloa, a new bamboo genus to accommodate the morphologically unique species, Pseudosasapubiflora (Poaceae). PhytoKeys 2023; 221:131-145. [PMID: 37250355 PMCID: PMC10209512 DOI: 10.3897/phytokeys.221.98920] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/17/2023] [Indexed: 05/31/2023]
Abstract
Pseudosasa was confirmed as polyphyletic by recent phylogenetic analyses, with Chinese species of Pseudosasa distantly related to those from Japan. Among the Chinese species of Pseudosasa, Pseudosasapubiflora is a morphologically unique as well as taxonomically problematic species endemic to South China, of which the generic designation is still uncertain. Molecular analyses based on both plastid and nuclear genomic data demonstrated that this species is closest to the recently published genus Sinosasa. Morphologically, the two are somewhat similar to each other in flowering branches developing at the nodes of every order of branches, raceme-like units of inflorescence with 3-5 short spikelets, each spikelet with few florets including a rudimentary one at the apex, and each floret with 3 stamens and 2 stigmas. However, P.pubiflora is very different from Sinosasa species in many reproductive and vegetative characters, such as the morphology of paracladia (lateral spikelet "pedicels"), the absence or existence of pulvinus at the base of paracladia, the relative length of the upper glume and the lowest lemma, the shape of lodicules and primary culm buds, the branch complement, the morphology of nodes, culm leaves and dried foliage leaf blades, and the number of foliage leaves per ultimate branchlet. The morphological and molecular evidence warrants recognition of a new genus to accommodate this unique species, which is here named Kengiochloa. After consulting related literature and examination of herbarium specimens or specimen photos, a taxonomic revision of K.pubiflora and its synonyms was made, and it was confirmed that four names, viz. P.gracilis, Yushanialanshanensis, Arundinariatenuivagina and P.parilis, should be merged with K.pubiflora, while Indocalamuspallidiflorus and Acidosasapaucifolia are distinct species.
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Affiliation(s)
- Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Zheng-Yang Niu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
- University of Chinese Academy of Sciences, CN-100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Zhuo-Yu Cai
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
- University of Chinese Academy of Sciences, CN-100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
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5
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Li X, Ni JB, Tan F, Tong YH, Xia NH. Yushaniatomentosa (Poaceae, Bambusoideae), a new combination from Guangxi. PhytoKeys 2023; 218:11-18. [PMID: 36762274 PMCID: PMC9846283 DOI: 10.3897/phytokeys.218.97312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/03/2022] [Indexed: 05/30/2023]
Abstract
Sasatomentosa is transferred to the genus Yushania following a reassessment based on a new collection with pachymorph and long-necked rhizomes from its type locality in Guangxi, China. Morphologically, it is most similar to Yushaniadoupengshanensis, but differs in culm, branch complement and foliage leaf characters. A revised description of its morphology and color photos are also provided.
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Affiliation(s)
- Xing Li
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
- University of Chinese Academy of Sciences, CN-100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Fei Tan
- The Administration Bureau of Jiuwan Mountain National Natural Reserve, CN-545300, Rongshui, ChinaThe Administration Bureau of Jiuwan Mountain National Natural ReserveRongshuiChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
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Li X, Ni JB, Cai ZY, Tong YH, Xia NH. Sinosasagracilis (Poaceae, Bambusoideae), a new combination supported by morphological and phylogenetic evidence. PhytoKeys 2023; 226:53-63. [PMID: 37207081 PMCID: PMC10189645 DOI: 10.3897/phytokeys.226.101164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/07/2023] [Indexed: 05/21/2023]
Abstract
The results of phylogenetic analysis, based on the whole chloroplast genome and morphological study support the transfer of a long ignored bamboo species, Sasagracilis, to the recently established genus, Sinosasa, in this study. Morphologically, this species differs from all the other known Sinosasa species by having very short (2-3 mm) foliage leaf inner ligules, which is unusual in this genus. A revised description of its morphology and colour photos are also provided.
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Affiliation(s)
- Xing Li
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of Sciences, CN-100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Zhuo-Yu Cai
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of Sciences, CN-100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, CN-510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- South China National Botanical Garden, CN-510650, Guangzhou, ChinaSouth China National Botanical GardenGuangzhouChina
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7
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Qin QM, Cai ZY, Ni JB, Tong YH, Xia NH. The floral morphology of four Chinese Bambusa species (Poaceae, Bambusoideae) previously described only from vegetative material. PhytoKeys 2022; 213:143-159. [PMID: 36762244 PMCID: PMC9836507 DOI: 10.3897/phytokeys.213.95614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/31/2022] [Indexed: 06/18/2023]
Abstract
Due to their specialised flowering biology where frequent or even annual flowering is uncommon, reproductive materials of bamboos are not always available, so hampering taxonomic interpretation and research into other aspects. Bambusacontracta, B.corniculata, B.cornigera and B.subtruncata were established only based on vegetative materials and flowering or fruiting material has been hitherto unknown. The floral morphology of these four species is described for the first time and, correspondingly, epitypes are designated to support a more complete interpretation of the species.
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Affiliation(s)
- Qiao-Mei Qin
- Guangdong Eco-engineering Polytechnic, Guangzhou 510520, ChinaGuangdong Eco-engineering PolytechnicGuangzhouChina
| | - Zhuo-Yu Cai
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of Sciences, 100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
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8
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He CM, Zhou XX, Ye XH, Chen W, Tong YH. Erythroxylumaustroguangdongense (Erythroxylaceae), a new species from Guangdong, China. PhytoKeys 2022; 202:133-138. [PMID: 36761818 PMCID: PMC9848950 DOI: 10.3897/phytokeys.202.84688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/01/2022] [Indexed: 06/18/2023]
Abstract
Erythroxylumaustroguangdongense (Erythroxylaceae), a new species from Guangdong Province, China, is described and illustrated. This new species is morphologically most similar to E.calyptratum, but is distinguished by the leathery leaf blade with fewer pairs of secondary veins and flowers borne on leafless nodes of the basal part of the current branch with much longer pedicels and sub-rectangular petal appendages. This is the second native species of Erythroxylum recorded from China.
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Affiliation(s)
- Chun-Mei He
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, 510520, ChinaGuangdong Academy of ForestryGuangzhouChina
| | - Xin-Xin Zhou
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Xue-He Ye
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, ChinaZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Weijun Chen
- Zhuhai Charmview International Travel Co. LTD, Zhuhai, 519000, ChinaZhuhai Charmview International Travel Co. LTDZhuhaiChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, ChinaCenter of Conservation Biology, Core Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
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9
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Ye XH, Wang QL, Huang MZ, Tong YH. Novelties on the genus Vaccinium (Ericaceae) from Hainan, China: a new species and a new record for the country. PhytoKeys 2022; 202:121-132. [PMID: 36761816 PMCID: PMC9849038 DOI: 10.3897/phytokeys.202.82786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 06/14/2022] [Indexed: 06/18/2023]
Abstract
Here we describe a new species, Vacciniumpseudopubicalyx, and report a new record for the flora of China, V.viscifolium, both from Hainan Province. Vacciniumviscifolium also represents the first record of V.sect.Euepigynium for China. Detailed descriptions and illustrations with analytical photographs of the two taxa are provided.
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Affiliation(s)
- Xue-He Ye
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, ChinaZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Qing-Long Wang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, ChinaTropical Crops Genetic Resources InstituteHaikouChina
| | - Ming-Zhong Huang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, ChinaTropical Crops Genetic Resources InstituteHaikouChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
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10
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Zeng SJ, Tong YH, Xia NH. Fordiophytontereticaule (Melastomataceae), a new species from China. PhytoKeys 2022; 197:59-69. [PMID: 36760677 PMCID: PMC9849035 DOI: 10.3897/phytokeys.197.82670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 05/09/2022] [Indexed: 06/18/2023]
Abstract
A new species, Fordiophytontereticaule, from China, is described and illustrated here based on morphological and molecular evidence. It is morphologically similar to F.faberi in having erect stems, slightly oblique and membranous leaf blades, broadly ovate to suborbicular bracts, and oblong petals, but differs by the terete stems, densely puberulous petioles, and elliptic leaf blades. Our phylogenetic analyses based on plastid genome and nrITS data indicate that this new species is clustered with four Fordiophyton species of Yunnan but placed far apart from F.faberi. An updated key to the genus is also provided.
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Affiliation(s)
- Si-Jin Zeng
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
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Huang YS, Nong SY, Li XK, Xie G, Tong YH. Vacciniumbangliangense, a new species of Ericaceae from limestone areas in Guangxi, China. PhytoKeys 2022; 194:23-31. [PMID: 35586320 PMCID: PMC9016033 DOI: 10.3897/phytokeys.194.81018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/24/2022] [Indexed: 06/15/2023]
Abstract
Vacciniumbangliangense, a new species from limestone areas in Guangxi, China, is described and illustrated. It is morphologically most similar to V.pseudotonkinense and V.sciaphilum in having small and dense obovate leaf blades with a retuse apex, hairy young branches and calyx and campanulate corollas, but can be distinguished from them by the distance of basal gland from petiole, the length of peduncle, pedicle and filaments, the indumentum of calyx tube and corolla and the existence of apical glands on calyx lobes. A table to distinguish the new species from other morphologically similar Vaccinium species, as well as colour plates of comparison of key characters, is also provided.
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Affiliation(s)
- Yu-Song Huang
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin, Guangxi, 541006, ChinaGuangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of SciencesGuilinChina
| | - Shi-Yue Nong
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin, Guangxi, 541006, ChinaGuangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of SciencesGuilinChina
- College of life Sciences, Guangxi Normal University, Guilin, Guangxi, 541004, ChinaGuangxi Normal UniversityGuilinChina
| | - Xing-Kang Li
- Guangxi Bangliang Gibbon National Nature Reserve Administration, Baise, Guangxi, 533800, ChinaGuangxi Bangliang Gibbon National Nature Reserve AdministrationBaiseChina
| | - Gao Xie
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin, Guangxi, 541006, ChinaGuangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of SciencesGuilinChina
- College of Tourism & Landscape Architecture, Guilin University of Technology, Guilin, Guangxi, 541006, ChinaGuilin University of TechnologyGuilinChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, Guangdong, 510650, ChinaCore Botanical Gardens, Chinese Academy of SciencesGuangzhouChina
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Tong YH, Zhao WL, Wang BM, Liu ED, Cai J, Guo YJ. Vacciniummotuoense (Ericaceae), a new species from Xizang, China. PhytoKeys 2021; 181:105-111. [PMID: 34611456 PMCID: PMC8448724 DOI: 10.3897/phytokeys.181.71522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Vacciniummotuoense (Ericaceae), a new species from Motuo County, Xizang Autonomous Region, China is described and illustrated. This new species belongs to Vacciniumsect.Calcicolus and is morphologically most similar to V.dunalianum, but differs in having yellowish-brown tomentose young branches, petioles and inflorescence rachis, leaf blades with 2-3(-4) pairs of secondary veins, usually all basal and with fine veins impressed adaxially and urceolate to spherical corollas.
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Affiliation(s)
- Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Wang-Lin Zhao
- Motuo Observation and Research Center for Earth Landscape and Earth System, Chinese Academy of Sciences, Linzhi, 860712, China
| | | | - En-De Liu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Jie Cai
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Yong-Jie Guo
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- University of Chinese Academy of Sciences, Beijing100049, China
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Tong YH, Bai Y, Feng JM, Ya JD. Agapetesheana, a new species of A.ser.Longifiles (Ericaceae) from Yunnan, China. PhytoKeys 2021; 180:133-139. [PMID: 34408536 PMCID: PMC8367934 DOI: 10.3897/phytokeys.180.69667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Agapetesheana Y. H. Tong & J. D. Ya (Ericaceae), a new species from Lüchun Xian, Yunnan Province, China is described and illustrated. This new species is assigned to Agapetessect.Agapetesser.Longifiles Airy Shaw. It is closest to A.inopinata Airy Shaw and A.oblonga Craib, but differs in having bead-like tubers, leaf blade with a wholly serrulate margin, subulate and much longer calyx lobes, much larger corollas that are carmine, green at the apex and maroon on angles, and longer stamens without spurs on the back.
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Affiliation(s)
- Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China Core Botanical Gardens, Chinese Academy of Sciences Guangzhou China
| | - Ying Bai
- Forestry and Grassland Bureau of Honghe Prefecture, Honghe Avenue, Mengzi, Yunnan, 661100, China Forestry and Grassland Bureau of Honghe Prefecture Mengzi China
| | - Jian-Ming Feng
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Heilongtan, Kunming, Yunnan, 650201, China Kunming Institute of Botany, Chinese Academy of Sciences Kunming China
| | - Ji-Dong Ya
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Heilongtan, Kunming, Yunnan, 650201, China Kunming Institute of Botany, Chinese Academy of Sciences Kunming China
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Leung GM, Hedley AJ, Kong J, Lam TH, Lau FL, Rainer T, Wong TW, Tong YH. Correction to: A clinical prediction rule for diagnosing severe acute respiratory syndrome in the emergency department. Hong Kong Med J 2020; 26. [PMID: 32255435 DOI: 10.12809/hkm0810sp5p8-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Tong YH, Zheng XR, Zhang YY, Qin QM, Ni JB, Vu TC, Xia NH. Khoonmengia honbaensis, a new genus and species of temperate bamboo (Poaceae, Bambusoideae) from central-southern Vietnam. PhytoKeys 2020; 138:163-177. [PMID: 31988611 PMCID: PMC6969006 DOI: 10.3897/phytokeys.138.39512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
A new genus of Arundinarieae, Khoonmengia, is established to accommodate a unique new bamboo species, K. honbaensis, from central-southern Vietnam. The morphological features, habitats and distribution of Khoonmengia and related genera, i.e. Ampelocalamus and Hsuehochloa, are compared. The characters of its scrambling habit, internodes with brownish green dots, conspicuous nodes swollen at one side, elliptic buds wholly sunken into culm, extravaginal branching pattern, mid-culm branch complement with one central dominant branch elongating to reiterate the culm accompanied by several lateral slender branches, swollen culm sheath base with a distinctive zone of transverse wrinkles, synflorescence composed of only one spikelet, single or several to many synflorescences arranged into a raceme or panicle terminal on leafy branches, purple anthers and nut-like caryopsis with hardened pericarp and loosely adherent lemma and palea distinguish K. honbaensis from morphologically similar taxa. In order to investigate the phylogenetic position of this unknown bamboo, molecular phylogenetic analyses based on the nuclear gene GBSSI were also conducted, and the results proved that K. honbaensis is definitely a member of Arundinarieae with an isolated position, which also indicated that this species could not be assigned to any of the already described genera and supported the establishment of the new genus.
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Affiliation(s)
- Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, MyanmarGuangzhou Institute of Forestry and Landscape ArchitectureGuangzhouChina
| | - Xi-Rong Zheng
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
- University of Chinese Academy of Sciences, Beijing, 100049, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of SciencesNay Pyi TawMyanmar
| | - You Yuan Zhang
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
- University of Chinese Academy of Sciences, Beijing, 100049, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of SciencesNay Pyi TawMyanmar
| | - Qiao-Mei Qin
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
- University of Chinese Academy of Sciences, Beijing, 100049, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of SciencesNay Pyi TawMyanmar
- Guangdong Eco-engineering Polytechnic, Guangzhou 510520, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of SciencesNay Pyi TawChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
| | | | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation & Sustainable Utilization/ Key Laboratory of Digital Botanical Garden of Guangdong Province, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, ChinaSouth China Botanical Garden, Chinese Academy of Sciences, GuangzhouGuangzhouChina
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, MyanmarGuangzhou Institute of Forestry and Landscape ArchitectureGuangzhouChina
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Cai ZY, Tong YH, Vu TC, Ni JB, Xia NH. Schizostachyum dakrongense (Poaceae, Bambusoideae), a new species from Dakrong Nature Reserve, Vietnam. PhytoKeys 2020; 138:179-186. [PMID: 31988612 PMCID: PMC6969037 DOI: 10.3897/phytokeys.138.39623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Schizostachyum dakrongense is a new species of woody bamboo from Dakrong Nature Reserve, Quang Tri Province, central Vietnam. It is closely related to S. hainanense but differs by its pseudospikelets having terminal rachilla segments with ciliate margin and 6 bracts; culm sheath with the base of the outer margin having a slight projection below its point of attachment at the node, as well as sheath blades usually less than half as long as the culm sheath proper; and leaf blades pale-puberulent and sparsely pilosulous on the abaxial surface. The new species is described and illustrated here.
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Affiliation(s)
- Zhuo-Yu Cai
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of Sciences, 100049, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Yi-Hua Tong
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Tien-Chinh Vu
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Hanoi, VietnamGraduate University of Science and TechnologyHanoiVietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, VietnamXishuangbanna Tropical Botanical Garden, Chinese Academy of SciencesXishuangbannaChina
| | - Jing-Bo Ni
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Nian-He Xia
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization/Guangdong Provincial Key Laboratory of Digital Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Southeast Biodiversity Center, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, ChinaVietnam National Museum of Nature, Vietnam Academy of Science and TechnologyHanoiVietnam
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Chen GH, Tzekov R, Jiang FZ, Mao SH, Tong YH, Li WS. Iatrogenic retinal breaks and postoperative retinal detachments in microincision vitrectomy surgery compared with conventional 20-gauge vitrectomy: a meta-analysis. Eye (Lond) 2018; 33:785-795. [PMID: 30560911 DOI: 10.1038/s41433-018-0319-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/04/2018] [Accepted: 11/17/2018] [Indexed: 12/19/2022] Open
Abstract
PURPOSE To assess the incidence of iatrogenic retinal breaks (IRBs) and postoperative retinal detachments (RDs) in microincision vitrectomy surgery (MIVS) compared with 20-gauge (20 G) vitrectomy. METHODS A comprehensive literature search was performed to find relevant studies and a meta-analysis of the IRBs and postoperative RDs rates after 20 G vitrectomy versus MIVS was conducted. RESULTS Thirty-two studies were selected, including 14,373 eyes (6932 eyes in the 20 G group, 7441 eyes in the MIVS group). The meta-analysis demonstrated that the incidence of IRBs was significantly higher in 20 G vitrectomy vs. MIVS (OR = 2.22, 95% CI, 1.93-2.57, P < 0.00001) and in a subanalysis vs. 23 G MIVS (OR = 2.19, 95% CI, 1.87-2.56, P < 0.00001) and vs. 25 G MIVS (OR = 2.27, 95% CI, 1.62-3.18, P < 0.00001). Similar result was obtained in a subanalysis for macular surgery (OR = 2.44, 95% CI, 1.99-2.99, P < 0.00001), and also for sclerotomy-related IRBs (OR = 3.73, 95% CI, 2.55-5.44, P < 0.00001), but not for surgically induced posterior vitreous detachment-related IRBs (OR = 1.59, 95% CI, 0.89-2.84, P = 0.12). The incidence of postoperative RDs in 20 G vitrectomy was significantly higher compared to MIVS (OR = 1.72, 95% CI, 1.21-2.46, P = 0.003) and in a subanalysis vs. 23 G MIVS (OR = 2.45, 95% CI, 1.50-4.00, P = 0.0003), but not for 25 G MIVS (OR = 1.01, 95% CI, 0.63-1.64, P = 0.96). Similar result was obtained in a subanalysis for macular surgery (OR = 1.89, 95% CI, 1.26-2.85, P = 0.002). CONCLUSION This meta-analysis demonstrated that MIVS is associated with a lower risk of IRBs and postoperative RDs compared to 20 G vitrectomy.
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Affiliation(s)
- G H Chen
- Department of Ophthalmology, Quzhou People's Hospital, Quzhou, Zhejiang, People's Republic of China
| | - R Tzekov
- Department of Ophthalmology, University of South Florida, Tampa, FL, USA
| | - F Z Jiang
- Department of Ophthalmology, Quzhou People's Hospital, Quzhou, Zhejiang, People's Republic of China
| | - S H Mao
- Department of Ophthalmology, Quzhou People's Hospital, Quzhou, Zhejiang, People's Republic of China
| | - Y H Tong
- Department of Ophthalmology, Quzhou People's Hospital, Quzhou, Zhejiang, People's Republic of China
| | - W S Li
- Shanghai Aier Eye Hospital, 1286 Hongqiao Road, Shanghai, People's Republic of China. .,Aier School of Ophthalmology, Central South University, Changsha, Hunan Province, People's Republic of China.
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Tong YH, Lau CC. Airway Foreign Body: A Difficult and Often Neglected Diagnosis in Asthmatic Child in Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490790200900407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Foreign body inhalation is not uncommonly encountered in children. Diagnosis could be difficult if parent cannot recall any relevant clinical history. This is especially true for an asthmatic child as respiratory signs and symptoms are believed by most emergency physicians to be attributed to asthma alone. We present a case of inhalation of peanut to the left main bronchus in an asthmatic child who was initially misdiagnosed as exacerbation of bronchial asthma. Meticulous clinical history and careful physical examination supplemented by chest radiograph in full expiration would raise the clinical suspicion of an obstructing foreign body within the bronchial tree. The diagnosis was subsequently confirmed on bronchoscopy and the obstructing peanut was successfully removed. As emergency physicians, we cannot attribute respiratory symptoms in an asthmatic child to be due to asthma alone. In the presence of respiratory symptoms of acute onset, unilateral physical signs and radiological evidence of air-trapping, foreign body inhalation should be considered even in the absence of accurate clinical history. Prompt arrangement for bronchoscopy assessment is recommended.
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Weng X, Yan YY, Tong YH, Fan Y, Zeng JM, Wang LL, Lin NM. [Overexpression of Keap1 inhibits the cell proliferation and metastasis and overcomes the drug resistance in human lung cancer A549 cells]. Zhonghua Zhong Liu Za Zhi 2016; 38:404-10. [PMID: 27346396 DOI: 10.3760/cma.j.issn.0253-3766.2016.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the effect of Keap1-Nrf2 pathway on cell proliferation, metastasis and drug resistance of human lung cancer A549 cell line. METHODS A549-Keap1 cell line, constantly expressing wild type Keap1, was established by lentiviral transfection. Real-time RT-PCR and western blot were used to determine the expression of Nrf2 and its target gene in A549 cells. Sulforhodamine B (SRB) assay, flow cytometry, colony formation assay, transwell assay, and cell wound-healing assay were performed to explore the effect of wild type Keap1 expression on the proliferation, invasion, migration and drug resistance of A549 cells. RESULTS Over-expressed Keap1 decreased the expression of Nrf2 protein and the mRNA level of its downstream target genes and inhibited the ability of cell proliferation and clone formation of A549 cells. Keap1 overexpression induced G0/G1 phase arrest. The percentage of A549-Keap1 cells in G0/G1 phase was significantly higher than that of A549-GFP cells (80.2±5.9)% vs. (67.1±0.9%)(P<0.05). Compared with the invasive A549-Keap1 cells (156.33±17.37), the number of invasive A549-GFP cells was significantly higher (306.67±22.19) in a high power field. Keap1 overexpression significantly enhanced the sensitivity of A549 cells to carboplatin and gemcitabine (P<0.01). The IC50s of carboplatin in A549-Keap1 and A549-GFP cells were (52.1±3.3) μmol/L and (107.8±12.9) μmol/L, respectively. The IC50s of gemcitabine in A549-Keap1 and A549-GFP cells were (6.8±1.2) μmol/L and (9.9±0.5) μmol/L, respectively. CONCLUSION Keap1 overexpression significantly inhibits the expression of Nrf2 and its downstream target genes, suppresses tumor cell proliferation and metastasis, and enhances the sensitivity of A549 cells to anticancer drugs.
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Affiliation(s)
- X Weng
- Institute of Cancer Pharmacology, the First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - Y Y Yan
- Translational Medicine Research Center, the First People's Hospital, Hangzhou 310006, China
| | - Y H Tong
- Department of Clinical Pharmacy, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y Fan
- Department of Clinical Pharmacy, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - J M Zeng
- Institute of Cancer Pharmacology, the First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - L L Wang
- Institute of Cancer Pharmacology, the First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - N M Lin
- Translational Medicine Research Center, the First People's Hospital, Hangzhou 310006, China
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Chen XJ, Chen Y, Zhang LN, Xu B, Zhang JH, Chen ZX, Tong YH, Zuo SM, Xu JY. Overexpression of OsPGIP1 Enhances Rice Resistance to Sheath Blight. Plant Dis 2016; 100:388-395. [PMID: 30694142 DOI: 10.1094/pdis-03-15-0305-re] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Rice sheath blight (SB), caused by necrotrophic pathogen Rhizoctonia solani, is one of the most destructive rice diseases, and no major resistance genes are available. Polygalacturonase-inhibiting proteins (PGIP) are extracellular leucine-rich repeat proteins and play important roles in plant defense against different pathogenic fungi by counteracting secreted fungal polygalacturonases (PG). However, the role of PGIP in conferring resistance to rice SB remains to be thoroughly investigated. Here, we showed that OsPGIP1 is capable of inhibiting PG derived from R. solani. Our real-time reverse-transcription polymerase chain reaction results indicated that resistant rice 'YSBR1' and 'Jasmine 85' express significantly higher levels of OsPGIP1 than susceptible 'Lemont'. Our results also show that OsPGIP1 is most highly expressed at the late tillering stage in the sheath of YSBR1, coinciding with the critical stage of SB development in field. More importantly, the OsPGIP1 level is highly elevated by inoculation with R. solani in resistant cultivars but not in susceptible Lemont. Overexpression of OsPGIP1 significantly increased rice resistance to SB and inhibited tissue degradation caused by R. solani-secreted PG. Furthermore, OsPGIP1 overexpression did not affect rice agronomic traits or yield components. Together, our results not only demonstrate the important role of OsPGIP1 in combatting the rice SB disease but also provide a new avenue to the improvement of rice SB resistance by manipulating an endogenous gene.
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Affiliation(s)
- X J Chen
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University; and Horticulture and Plant Protection College, Yangzhou University
| | - Y Chen
- Horticulture and Plant Protection College, Yangzhou University
| | - L N Zhang
- Horticulture and Plant Protection College, Yangzhou University
| | - B Xu
- Horticulture and Plant Protection College, Yangzhou University
| | - J H Zhang
- Horticulture and Plant Protection College, Yangzhou University
| | - Z X Chen
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University
| | - Y H Tong
- Horticulture and Plant Protection College, Yangzhou University
| | - S M Zuo
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University
| | - J Y Xu
- Horticulture and Plant Protection College, Yangzhou University, Yangzhou 225009, China
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Chen XR, Xing YP, Zhang TX, Zheng JT, Xu JY, Wang ZR, Tong YH. First Report of Pestalotiopsis sydowiana Causing Leaf Necrosis of Myrica rubra in China. Plant Dis 2012; 96:764. [PMID: 30727544 DOI: 10.1094/pdis-01-12-0065-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Red bayberry (Myrica rubra Seib. & Zucc.) has great economic importance in eastern and southern China. However, increasing cultivation of red bayberry has resulted in an increase in diseases such as leaf necrosis. In April 2011, a survey was conducted to identify the causal agents of leaf necrosis of red bayberry (cv. Biqi) in Cixi City, Zhejiang Province. Symptoms began with oval and pale brown lesions (2 mm in diameter) that developed into a round to irregular shape (4 to 12 mm in diameter) with pale brown centers and dark brown borders. After approximately 4 months, necrotic lesions expanded to the leaf tips or margins. Black acervuli developed on lesions at later stages. Leaf tissues were surface sterilized with 0.5% sodium hypochlorite for 3 min and rinsed in sterile water before plating onto potato dextrose agar (PDA). Seven isolates were obtained from four samples from four fields on PDA at 25°C. The colonies were cottony white with filiform edges and produced a honey yellow color into the agar at 7 days. Conidia were produced in ink-like fruiting bodies at 4 days at 25°C on PDA. Conidia were straight or slightly curved, fusiform, and five celled with constrictions at the septa. Conidia ranged from 18.7 to 25.8 × 6.2 to 7.7 μm with hyaline apical and basal cells. Thirteen percent of the apical cells had two and the rest had three hyaline appendages ranging from 11.2 to 26.0 μm long. Basal appendages were hyaline, straight, and varied from 3.6 to 5.8 μm long. The color of three median cells was light to dark brown and demonstrated versicolorous. These morphological characteristics matched those of Pestalotiopsis sydowiana (Bresadola) Sutton (1). The morphological identification of the fungus was confirmed by nucleotide blast analysis of the 5.8S subunit and flanking internal transcribed spacers (ITS1 and ITS2) of rDNA regions (GenBank Accession No. JQ322999), which revealed 100% with those of other P. sydowiana isolates (e.g., GenBank Accession No. FJ478105). Koch's postulates were confirmed with 20 healthy leaves of the same size on three branches of three plants in the field. Leaves were wounded by pressing slightly with sterile needles. Mycelial plugs (5 mm in diameter) obtained from the periphery of 7-day-old cultures were placed onto the wounds and covered with sterile-water-saturated cotton. Wounded leaves treated with sterile agar plugs served as controls. The inoculated leaves were sealed in moist plastic bags for 24 h to establish high humid conditions at 21 to 30°C. After 23 days, symptoms on all inoculated leaves were identical to those described above, whereas noninoculated control leaves did not show any symptoms. The fungus was consistently reisolated from the lesions. To our knowledge, this is the first report of P. sydowiana causing leaf necrosis of M. rubra in China. Results can help to better understand the diseases threatening red bayberry trees and develop effective control strategies for better fruit production. Reference: (1) E. F. Guba. Monograph of Monochaetia and Pestalotia. Harvard University Press, Cambridge, MA, 1961.
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Affiliation(s)
- X R Chen
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Y P Xing
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - T X Zhang
- Ningbo Technology Extension Center for Forestry and Specialty Forest Products, Ningbo 315010, China
| | - J T Zheng
- Ningbo Technology Extension Center for Forestry and Specialty Forest Products, Ningbo 315010, China
| | - J Y Xu
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China. This study is supported by Jiangsu Province Basic Research Program (Natural Science Foundation) (BK2011443) and Major Project of Ningbo City, Zhejiang Province for Science and Technology Development (2009C10004)
| | - Z R Wang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China. This study is supported by Jiangsu Province Basic Research Program (Natural Science Foundation) (BK2011443) and Major Project of Ningbo City, Zhejiang Province for Science and Technology Development (2009C10004)
| | - Y H Tong
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China. This study is supported by Jiangsu Province Basic Research Program (Natural Science Foundation) (BK2011443) and Major Project of Ningbo City, Zhejiang Province for Science and Technology Development (2009C10004)
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Ren ZH, Tong YH, Xu W, Ma J, Chen Y. Tanshinone II A attenuates inflammatory responses of rats with myocardial infarction by reducing MCP-1 expression. Phytomedicine 2010; 17:212-218. [PMID: 19800776 DOI: 10.1016/j.phymed.2009.08.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Revised: 07/02/2009] [Accepted: 08/07/2009] [Indexed: 05/28/2023]
Abstract
The root of Salvia miltiorrhiza Bunge, a well-known traditional Chinese medicine, has been used effectively for the treatment of cardiovascular diseases for a long time. The mechanisms underlying this therapeutic effect are not, however, fully understood. Tanshinone IIA (Tan IIA) is one of the major active components of this Chinese medicine. Therefore, the present study was performed to investigate whether Tan IIA, which has shown a cardio-protective capacity in myocardial ischemia, has an inhibitory effect on the inflammatory responses following myocardial infarction (MI) and its potential mechanisms. In an in vivo study, rat MI model was induced by permanent left anterior descending coronary artery (LAD) ligation. After the operation rats were divided into three groups (sham, MI and Tan IIA). Tan IIA was administered intragastrically at a dose of 60mg/kg body wt./day. One week later, rats were sacrificed and the hemodynamic, pathological and molecular biological indices were examined. In an in vitro study, the inflammatory model was established by TNF-alpha stimuli on cardiacmyocyte and cardiac fibroblasts. Tan IIA attenuates the MI pathological changes and improves heart function, and reduces expression of MCP-1, TGF-beta(1) and macrophage infiltration. Furthermore, Tan IIA could also decrease the expression of TNF-alpha and activation of nuclear transcription factor-kappa B (NF-kappaB). In vitro, Tan IIA could reduce MCP-1 and TGF-beta(1)secretion of cardiac fibroblasts. The present study demonstrated that the cardioprotective effects of Tan IIA might be attributed to its capacity for inhibiting inflammatory responses.
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Affiliation(s)
- Z H Ren
- College of Pharmaceutical Sciences, Zhejiang University, 310058 Hangzhou, China
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Leung GM, Hedley AJ, Kong J, Lam TH, Lau FL, Rainer T, Wong TW, Tong YH. A clinical prediction rule for diagnosing severe acute respiratory syndrome in the emergency department. Hong Kong Med J 2008; 14:8-10. [PMID: 18941266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Affiliation(s)
- G M Leung
- Department of Community Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, China.
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Dong L, Liu YC, Tong YH, Xiao ZY, Zhang JY, Lu YM, Shen DZ, Fan XW. Preparation of ZnO colloids by aggregation of the nanocrystal subunits. J Colloid Interface Sci 2006; 283:380-4. [PMID: 15721908 DOI: 10.1016/j.jcis.2004.09.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2003] [Accepted: 09/13/2004] [Indexed: 10/26/2022]
Abstract
Colloidal ZnO particles with narrow size distribution were prepared via a sol-gel process by base-catalyzed hydrolysis of zinc acetate. The morphology of ordered arrays of the particles was recorded by SEM. SEM also reveals that these uniform particles were composed of tiny ZnO subunits (singlets) sized of several nanometers. The size of the singlets, which is confirmed by X-ray diffraction and UV-vis absorption spectra, increases as the aging time is prolonged. The size-selective formation of colloids by aggregation of nanosized subunits is proposed to consist of two-stage growth by nucleation of nanosized crystalline primary particles and their subsequent aggregation into polycrystalline secondary colloids. The aggregates are all spherical because the internal rearrangement processes are fast enough. The ZnO colloids, i.e., the aggregates, tend to self-assemble into well-ordered hexagonal close-packed structures. Room-temperature photoluminescence was characterized for green and aged ZnO.
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Affiliation(s)
- L Dong
- Key Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, No. 16 Eastern South-Lake Road, Changchun 130033, People's Republic of China
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Lu YH, Hsieh MW, Tong YH. Unilateral vocal cord paralysis following endotracheal intubation--a case report. Acta Anaesthesiol Sin 1999; 37:221-4. [PMID: 10670122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
A 41-year-old man of ASA physical status class I was scheduled to receive the video-assisted thoracoscopic T2 sympathectomy for hyperhidrosis palmaris. The elective surgery was performed smoothly under general anesthesia with endotracheal intubation. However, the patient complained of hoarseness in the postoperative period. A stroboscopic examination showed that the left vocal cord remained stationary in the paramedian position, signifying left vocal cord paralysis. In the case, we believed it was most likely that endotracheal intubation might be responsible for the unilateral vocal cord paralysis. The possible cause was that during placement or thereafter during positioning, the endotracheal tube was malposed or slipped upward, rendering its inflated cuff to rest against the vocal cords. Another reason was that the cuff which was over inflated made the vocal cords under constant pressure. Both conditions may cause damage to the anterior branch of the recurrent laryngeal nerve. We also discussed the general management and prophylaxis for the unilateral vocal cord paralysis.
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Affiliation(s)
- Y H Lu
- Division of Anesthesia, Taichung Hospital, Taiwan, R.O.C
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Zhang JZ, Yang XX, Tong YH. [Combined gu chi wan and spiramycin in the treatment of periodontal disease]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1992; 12:83-5, 68. [PMID: 1498532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The purpose of the present study is to evaluate clinical effect of the integrated traditional Chinese and western medicine in the treatment of periodontal disease. 90 patients suffered from mild to advanced periodontitis were divided into two groups. The gu chi wan (tooth firming pills) group was administered tooth firming pills 4 mg twice daily for 3-6 months combined with spiramycin 0.2 four times daily for 5 days and routine periodontal treatment. The spiramycin group, as control, was administered spiramycin 0.2 four times daily for 5 days combined with routine periodontal treatment. The clinical parameters: GI, PLI, PDI and serial radiographs were checked on the beginning of study and through 3, 6, 12, 24 months follow up study. The results showed that the GI and PDI of the gu chi wan group decreased significantly than the control group (P less than 0.001). The inflammatory recurrence rate was 33% in the control group and 12% in gu chi wan group and the serial radiographs demonstrated that a higher incidence of bone fill occurred in gu chi wan group than in the control group (P less than 0.01).
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Affiliation(s)
- J Z Zhang
- College of Stomatology, West China University of Medical Sciences, Chengdu
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Abstract
The predominant cultivable bacteria associated with juvenile periodontitis (JP) in China were studied for the first time. Subgingival plaque samples were taken on paper points from 23 diseased sites in 15 JP patients and from 7 healthy sites in 7 control subjects. Serially diluted plaque samples were plated on nonselective blood agar and on MGB agar, a selective medium for the isolation of Actinobacillus actinomycetemcomitans. Fifteen or more isolated colonies from each sample (in sequence without selection) were purified for identification. The results indicated that the microflora in healthy sulci of the 7 control subjects was significantly different from that in diseased sites of JP patients. The predominant species in healthy sulci were Streptococcus spp. and Capnocytophaga gingivalis. In JP patients, Eubacterium sp. was found in significantly higher frequency and proportion. Actinobacillus actinomycetemcomitans was not detected in any samples. It appears that this species is not associated with juvenile periodontitis in China.
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Affiliation(s)
- N M Han
- Department of Periodontology, College of Stomatology, West China University of Medical Sciences, Chengdu
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Tong YH. [Improvements in the treatment of tooth root fracture]. Zhonghua Kou Qiang Ke Za Zhi 1984; 19:155-7. [PMID: 6598136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Tong YH, Sinniah D, Murugasu R, White JC. Two Malaysian Chinese male children with the Wiskott-Aldrich syndrome. Singapore Med J 1979; 20:355-9. [PMID: 505032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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