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福建省4种兰科植物新记录 总被引：1，自引：0，他引：1
报道了福建兰科植物分布新记录4种,分别为箭药叉柱兰（Cheirostylis monteiroi S. Y. Hu）、秉滔羊耳蒜（Cestichis pingtaoi G. D. Tang, X. Y. Zhuang & Z. J. Liu）、裂距虾脊兰（Calanthe trifida T. Tang et F. T. Wang）、深圳香荚兰（Vanilla shenzhenica Z. J. Liu et S. C. Chen）。凭证标本现存于福建农林大学标本馆（FJFC）。 相似文献
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海南兰科植物研究杂记（Ⅲ） 总被引：1，自引：0，他引：1
本文报道了兰科植物1个中国新记录：越南火炬兰[Grosourdya vietnamica (Aver.) Kumar & S.W.Gale],并修订了唇瓣背胼胝体形态的相关描述;同时报道了5个海南兰科植物新记录,分别为弄岗虾脊兰（Calanthe longgangensis Y.S.Huang & Y.Liu）、少叶硬叶兰（Cymbidium paucifolium Z.J.Liu & S.C.Chen）、麻栗坡绒兰[Dendrolirium malipoense (Z.J.Liu & S.C.Chen) H.Jiang]、垦丁虎舌兰（Epipogium kentingense T.P.Lin & ShuH.Wu）和勐海天麻（Gastrodia menghaiensis Z.H.Tsi & S.C.Chen）,其中垦丁虎舌兰原记录为台湾省特有。上述类群的发现不仅丰富了海南兰科植物的分类、分布的数据,也为今后的分类学修订提供新资料。 相似文献
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浙江省兰科植物新记录 总被引：1，自引：0，他引：1
本文报道了浙江省兰科植物4个新记录种,分别是藓叶卷瓣兰（Bulbophyllum retusiusculum Rchb. f.）、秉滔羊耳蒜（Cestichis pingtaoi G. D. Tang, X. Y. Zhuang & Z. J. Liu）、政和石斛（Dendrobium zhenghuoense S.P. Chen, L. Ma & M. H. Li）和无叶美冠兰[Eulophia zollingeri (Rchb. f.) J. J. Sm.],凭证标本保存于温州大学植物标本室（WZU）。新记录种的发现丰富了浙江植物区系的种质资源,为其地理分布的研究提供基础资料。 相似文献
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Jute(Corchorus spp.)is a member of the Malvaceae family,which comprises more than 100 species.The systematic positions of jute species have remained unsettled.Chloroplasts are maternally inherited and their genomes are widely used for plant phylogenetic studies.In the present study,the chloroplast genomes of Corchorus capsularis and C.olitorius were assembled,with sizes of respectively 161,088 and 161,766 bp.Both genomes contained 112 unique genes(78 protein-coding,four rRNA,and 30 tRNA genes).Four regionswith high variation between the two species were located in single-copy rather than inverted-repeat regions.A total of 66 simple sequence repeats(SSRs)were identified in the C.capsularis chloroplast genome and 56 in that of C.olitorius.Comparison of the two chloroplast genome sequences permitted the evaluation of nucleotide variation including 2417 single-nucleotide polymorphisms sites and 294 insertion or deletion sites,of which one marker(cpInDel 205)could discriminate the two jute species.Comparison of the C.capsularis and C.olitorius chloroplast genomeswith those of other species in theMalvaceae revealed breakpoints in the accD locus,which is involved in fatty acid synthesis,in C.capsularis and C.olitorius.This finding suggests that genes from the chloroplast genomemight have been transferred to the nuclear genome in some Corchorus species.This hypothesis was supported by synteny analysis of the accD region among the nuclear,chloroplast,and mitochondrial genomes.To our knowledge,this is the first report of the assembled chloroplast genome sequences of C.capsularis and C.olitorius.C.capsularis and C.olitorius are closely related to Gossypium species and there are abundant microstructure variations between these two genera.These results will expand our understanding of the systematics of species in the Malvaceae. 相似文献
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报道6个海南野生兰科植物新记录种，分别为雉尾叉柱兰(Cheirostylis cochinchinensis Blume)、和社叉柱兰(C. tortilacinia C.S. Leou)、细小叉柱兰(C. pusilla Lindley)、果香兰(Cymbidium suavissimum Sander ex C.H. Curtis)、扁球羊耳蒜(Liparis elliptica Wight)、凭祥羊耳蒜(Liparis pingxiangensis L. Li & H.F. Yan)；并对中华坛花兰[Acanthephippium gougahense(Guillaumin)Seidenfaden]、香港绶草(Spiranthes hongkongensis S.Y. Hu & Barretto)、吉氏白点兰(Thrixspermum tsii W.H. Chen & Y.M. Shui)进行考订。 相似文献
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Jiao-yu WANG Xiao-yan WANG Ling LI Xin ZHANG Yan-li WANG Rong-yao CHAI Guo-chang SUN 《水稻科学》2012,19(3):252-258
Inoculation methods for rice blast fungus Magnaporthe oryzae to Brachypodium distachyon were developed to investigate the infection process and symptom development in comparison with those on rice (Oryza sativa) and barley (Hordeum vulgare).M.oryzae could infect leaves,sheathes,stems and panicles of B.distachyon and cause blast disease.Spraying conidial suspension on either intact seedlings or leaf segments induced typical symptoms on B.distachyon.During the intact seedling inoculation,the symptom developed on B.distachyon leaves closely resembled that on rice;but the lesions on B.distachyon had better uniformity in shapes and sizes than those on rice or barley.In the leaf segments inoculation,only initial and low-developed lesions could be found on rice,while normal symptoms on B.distachyon and barley.Inoculated with low-virulent mutants of M.oryzae,B.distachyon produced low-level symptoms.The symptom level of each mutant on B.distachyon corresponded well to that on rice.In addition,typical infection processes presented on B.distachyon leaves:forming melanized appressoria,penetrating into host epidermis and then forming hyphae in epidermal cells.According to these results,B.distachyon can be used as a candidate for studying fungus-plant interactions and as a probable source of disease resistance. 相似文献