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中国核盘菌科分类研究概况 总被引:2,自引:0,他引:2
本文简要回顾我国核盘菌科真菌的研究历史,尤其是最近十年的进展,更正了过去此科分类和命名中的一些问题,列出我国目前已知核盘菌科12属42种,并提供属的检索表;其中美洲杯盘菌为我国新记录。同时,指出对此科进一步深入探讨的方向。描述新种贵州杯盘菌,模式保存在中国科学院微生物研究所真菌标本室。 相似文献
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云南竹亚科一些属种的增订 总被引:3,自引:0,他引:3
报道了云南竹亚科新名称1个,新组合1个,新异名1个,发现1个不合格名称,1个属在云南分布的新记录和1个种在我国分布的新记录。同时讨论了单枝竹属和空竹属的地理分布。 相似文献
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对从土壤微生物中筛选到的放线菌菌株1356进行分类学和抗菌活性的研究。采用多相分类法,对菌株的形态特征、培养特征、生理生化特性及16 SrRNA基因序列进行了研究。结果表明:该菌株的形态特征、培养特征、生理生化特性为链霉菌属的特征;16S rDNA序列分析及系统进化树分析表明其序列与灰色产色链霉菌的同源性最高;该菌株的发酵产物对番茄叶霉、白色念珠菌、小麦根腐菌等17种真菌均有不同程度的抑制作用。放线菌1356菌株具有广谱抗真菌活性而对细菌无作用;初步确定其为链霉菌属灰色产色链霉菌的一个亚种。 相似文献
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倭竹族花序演化的探讨 总被引:1,自引:0,他引:1
倭竹族隶于禾本科之竹亚科。本族计有10属约150余种。分布于东南亚季风带的印度、越南、中国及日本等国,我国产8属约120种,占该族全部属种的80%。其中唐竹属、短穗竹属、筇竹属、八月竹属等均为我国所特产,唐竹属1种早期引入日本栽培,倭竹属、大节竹属、方竹属、刚竹属等也主要分布于我国,只有少数种分布于其它国家,业平竹属和阴阳竹属为日本特产。 刚竹属计有70种之多,我国产50种以上,是本族中种类最多的属,其中有许多种类分布广、适应能力强,用途多、产量大。是重要的植物资源.尤其是毛竹,是我国亚热带地区的主要栽培竹种。 倭竹族花序演化的研究对于进一步认识和鉴别竹类植物.了解竹类植物的演化关系。使竹类植物的系统安排更加合理都是有益的。倭竹族的花序属于假花序.与真花序相比较属于原始类型。本族中花序轴反复分枝.具有极多小穗的短穗竹属,业平竹属等是比较原始的,大节竹属、唐竹属的花序简化、花序轴不分枝或仅有少数分枝,含小穗数很少是进化类型。 相似文献
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倭竹属地理分布的研究 总被引:2,自引:0,他引:2
倭竹属Shibataea Makino隶于禾本科之竹亚科,现已知有8种,分布于我国东南部的浙江、福建、江苏、安徽、江西等省,广东、台湾两省有少量栽培,日本产1种。苏联、西德、印尼等国所栽培的倭竹均系自我国或日本引入。我国浙-闽地区产8种,且都有野生发现,是本属的现代分布中心。倭竹属植物体型矮小,常植于庭院或公园中供观赏。近年来盆景艺术迅速发展,微型园林日益兴起,倭竹属植物体态优美,常绿,耐寒且易于栽培,为广大园林工作者所垂青。 相似文献
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我国北方VA菌根真菌某些属和种的生态分布 总被引:40,自引:0,他引:40
虽然VA真菌遍布全球,但其属和种的分布是不均衡的,常有程度不同的地域性。以新疆、北京和吉林三地为代表的我国北方土壤中的VA真菌大都为球囊霉属Glomns。对摩西球囊霉G.mosseae、地表球囊霉G.versiforme及未发表种Glomussp.9等菌种和某些生态因子的统计分析表明:土壤pH、土壤有机质含量和采集地海拔高度对三菌种的分布影响显著。在pH5-9.5范围内,球囊霉属所占比例随土壤pH 相似文献
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菌根真菌一新种——石斛小菇 总被引:11,自引:1,他引:11
从云南省野生铁皮石斛根中分离出一菌根真菌,经系统形态学研究后,将其鉴定为小菇属一新种:石斛小菇。标本保藏在中国科学院微生物研究所菌物标本室(HMAS)。用石斛小菇伴播12种兰科植物种子,实验结果表明该真菌对天麻和密花石斛种子萌发有明显促进作用。 相似文献
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本文报道广东省和海南省的小皮伞属MarasmiusFr.的种类46种,其中有1个新种和12个国内新记录种。新种为海南小皮伞MarasmiushainanensisT.H.Lispnov.。文中列有上述种类的分种检索表和新种的中文和拉丁文描述。 相似文献
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中国香港新记录的十个分类单元 总被引:1,自引:0,他引:1
中国香港位于热带北缘,其植被在历史上曾遭到大规模破坏,近几十年来逐渐恢复。香港植物标本采集有很长的历史,迄今为止已记录的维管植物超过2 170种,然而新种和新分布仍在不断增加。在最近的野外工作中,作者发现10种在香港新记录到的维管植物,分别是唇边书带蕨[Haplopteris elongata (Swartz) E. H.Crane]、雷公连[Amydrium sinense (Engl.) H. Li]、百足藤[Pothos repens (Lour.) Druce]、四川轮环藤(Cycleasutchuenensis Gagnep.)、山黑豆(Dumasia truncata SieboldZucc.)、倒心叶珊瑚[Aucuba obcordata (Rehder) Fu ex W. K. Hu et Soong]、竹叶榕(Ficus stenophylla Hemsl.)、长叶冠毛榕[F. gasparriniana var. esquirolii (H. Lév.Vaniot) Corner]、硬叶冬青(Ilex ficifolia C. J. Tseng ex S. K. Chen et Y. X. Feng)、假福王草[Paraprenanthes sororia(Miq.) C. Shih.]。雷公连属(Amydrium Schott)、山黑豆属(Dumasia DC.)和假福王草属(Paraprenanthes C. C.Chang ex C. Shih)为香港的新记录属。以上的发现不仅丰富了香港的植物区系,而且表明保护残存植被非常重要,且极小种群的保护也值得特别关注。 相似文献
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《Journal of bryology》2013,35(4):787-798
AbstractSix genera and 11 species of Sematophyllaceae are confirmed for the Hong Kong moss flora based on recent collections. One genus, Brotherella, and three species, Brotherella erythrocaulis, lsocladiella surcularis and Taxithelium instratum, are new to Hong Kong. Taxithelium batanense is a new synonym of T. oblongifolium. Sematophyllum japonicum, S. pulchellum and S. subhumile are treated as a species complex awaiting further revision. The report of Trichosteleum mammosum from Hong Kong needs confirmation. 相似文献
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报道小喜盐草Halophila minor (Zoll.) den Hartog在香港的首次记录, 同时也是除沿海岛屿(海南及南沙群岛)以外中国大陆的首次记录。喜盐草属在中国最早的记录可追溯至1856年(香港九龙湾), 包括喜盐草H. ovalis及贝克喜盐草H. beccarii在内, 目前已知3种喜盐草属植物分布香港。尽管从前小喜盐草及圆叶喜盐草H. ovata曾作同种处理, 现已有最新证据清楚区别这两种喜盐草(本文证实圆叶喜盐草不产香港)。因本属的世界分布及分类最近已被全面修订, 使得准确鉴别各种喜盐草成为可能。香港的海岸面对高速发展, 海草的保育尤需关注。 相似文献
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VIRGINIA Laifun Lee MARIA Lauching Young TONY Kingtung Chan SAMUEL Kinsan Lam FRANCO Kwokyan Ng JULIA Wingyin Chan 《水生生物学报》2006,12(6):1-666
Hong Kong Special Administrative Region,China,has an area of1095km2and is located at the edge of thenorthern tropical zone.The landscape is dominated byhills and ravines withflat landrestrictedtothe lowflood-plains and coastal regions.Inthis hilly domain,the smallrocky streams are typically fast flowing at their uplandsources,and graduallyreduceinspeed asthey wind alonghill cuttings to reach the lowlands.While streams arecommonlyfound,rivers are very limited in number.Thefewlong and meanderi… 相似文献
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The diverse ecological roles played by different rodent species mean that the loss of some species and superabundance of others
could potentially influence a wide range of ecological processes. Hong Kong (22° N, 114° E), with seven million people in
a land area of 1100 km2, could be considered a `worst case scenario' for the survival of mammalian diversity. Existing information on rodents in
Hong Kong was compiled from previous published and unpublished studies, and additional trapping was conducted at 17 non-urban
sites. The rodent fauna of modern Hong Kong consists of eight species of rats and mice (Bandicota indica, Mus caroli, M. musculus, Niviventer fulvescens, Rattus norvegicus, R. rattus, R. tanezumi, R. sikkimensis: Muridae), one porcupine (Hystrix brachyura: Hystricidae), and one recently introduced tree squirrel (Callosciurus erythraeus: Sciuridae). Six of the murids are urban or agricultural commensals, so only the porcupine and two murids, N. fulvescens and R. sikkimensis, are likely survivors of Hong Kong's pre-deforestation native rodent fauna. The two murids co-dominate in forest and shrubland,
but can also move through grassland, which has probably enabled their survival through repeated cycles of fragmentation and
regrowth. Additional forest rodents that may have inhabited Hong Kong in the past are tentatively identified from information
on their recent distributions in the region. One possible ecological consequence of Hong Kong's depleted rodent fauna is a
shift in the balance between seed predation and seed dispersal, in favor of the former. 相似文献
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Penzigomyces catalonicus sp. nov., collected on dead branches of an unknown tree species in Spain, is described and illustrated. This fungus is characterized by short, dark brown, percurrent conidiophores, usually doliiform conidiogenous cells and ellipsoidal or slightly obclavate, (2-)3-4(-6) euseptate, thin-walled conidia. The new taxon is compared with species from other morphologically similar genera, and a key to the known species of Penzigomyces is provided. 相似文献
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Terence P. T. Ng Martin C. F. Cheng Kevin K. Y. Ho Gilbert C. S. Lui Kenneth M. Y. Leung Gray A. Williams 《Biodiversity and Conservation》2017,26(1):23-36
Hong Kong is famous as a bustling harbour and financial centre, with a dense burgeoning population impacting its coastal environment. Yet, away from the skyscrapers and the pressures of anthropogenic influence, Hong Kong supports a rich marine biodiversity, including corals and mangrove communities. Despite having a small marine area (1651 km2), a total of 5943 marine species have been recorded in Hong Kong waters. Most of these species were reported during the 1980s and 1990s, but new species continue to be discovered, and ~6500 species are estimated. Even though Hong Kong’s marine area is only ~0.03 % of that of China, the number of marine species recorded in Hong Kong already accounts for ~26 % of the total recorded in China. Hong Kong also contributes to a considerable amount (>30 %) of the species records for several taxa including amphipods, cephalopods, polychaetes and fish in the South China Sea, and ~29 % of the hermit crab species in the largest global marine species database, the World Register of Marine Species. These findings demonstrate the rich marine biota found in Hong Kong, which probably reflects Hong Kong’s location within the fringes of the world’s marine biodiversity hotspot. 相似文献