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1.
Isolations of microorganisms were made from the sapwood of Norway spruce ( Picea abies ) (L.) Karst. infested by the spruce bark beetle Ips typographus L. The most important group of fungi isolated, the species of Ophiostomataceae, is treated. Ten species were isolated, of which Ophiostoma polonicum Siem. appears to be the most active invader of the sapwood. Three new species are described, Ophiostoma ainoae sp. nov., O. flexuosum sp. nov. and O. cucullatum sp. nov. and three new combinations are proposed, O. davidsonii (Olchow. & Reid.) comb. nov., O. europhioides (Wright & Cain) comb. nov. and O. sagmatospora (Wright & Cain) comb. nov.  相似文献   

2.
The new species Cercosporella pergulariae sp. nov., Pseudocercospora catalpicola sp. nov., Sirosporium rhamnigenum sp. nov., and Spiropes desmodiicola sp. nov. are described and Cercospora commelinicola Chupp is validated. Cercostigmina curta (Syd.) comb, nov., Eriocercosporella vitis-heterophyllae (Henn.) comb, nov., Mycovellosiella lactucae (Henn.) comb, nov., M. trichostemmatis (Henn.) comb, nov., M. tylophorae (Hansf.) comb, nov., Passalora caespitosa (Ellis & Everh.) comb, nov., P. chionanthi (Ellis & Everh.) comb, nov., Prathigada condensata (Ellis & Kellerm.) comb, nov., Pseudocercospora carrii (Barthol.) comb, nov., P. glaucescens (G. Winter) comb, nov., P. pamelae-ellisiae (G.P. Agarwal & N.D. Sharma) comb, nov., Pseudophaeoramularia angolensis (T. Cavalho &O. Mendes) comb, nov., Sporidesmium seminale (Ellis & Everh.) comb, nov., and Stenella praelonga (Syd.) comb. nov. are introduced. Cercospora litseae Henn. is reduced to synonym with Mycovellosiella litseae Meenu et al., and a second collection of Cercosporella indica from Vietnam is recorded.  相似文献   

3.
本文报道了假尾孢属的6个种,其中有2个新种,即:枫杨假尾孢(Pseudocercospora pterocaryae Guo et W. X. Zhao)和清风藤假尾孢(Pseudocercosporasabiae Guo et W.X.Zhao);3个新组合:紫珠假尾孢[Pseudocercospora callicarpae(Cooke) Guo et W. X. Zhao],蕺菜假尾孢[Pseudocercospora houttuyniae (Togashi & Kats.) Guo et W. X. Zhao],冬青假尾孢[Pseudocercospora mate (Speg.) Guo et W. X. Zhao]。两个新种的模式标本保存在中国科学院微生物研究所真菌标本室,其等模式标本保存在中国林科院林业科学研究所病理标本室。枫杨假尾孢(Pseudocercospora pterocaryae Guo et W. X. Zhao)斑点叶两面生,近圆形,直径0.5—12.0mm,无明显边缘,叶面褐色至暗褐色,叶背灰褐色,子实体叶背生,具表生菌丝。子座生于表皮下,近球形。分生孢子梗浅青黄色至青黄色,不分枝,0—4隔,9.7—73.5×3.7—4.3μm。分生孢子倒棍棒形至倒棍棒-圆柱形,极浅的青黄色,光滑,干燥,具2—10个不明显的隔膜,35.0—99.5×3.7—4.3μm。清风藤假尾孢(Pseudocercospora sabiae Guo et W. X. Zhao)斑点叶两面生,圆形,直径1.5—4.0μm。叶面黄褐色至褐色,外围以暗褐色细线圈,有时还具浅黄褐色晕圈,叶背中度褐色。子实体叶面生,具表生菌丝,无子座。分生孢子梗青黄褐色至浅褐色,平滑,具2—10个隔膜,17.0—162.0×3.0—3.9(—4.3)μm。分生孢子倒棍棒形至圆柱形,浅青黄色,平滑,干燥,3—8隔,43.0—99.5×2.8—3.9(—4.3)μm。  相似文献   

4.
The geographical distribution and analysis of the essential oils of species from three sections of Hypericum L. (Guttiferae/Clusiaceae/Hypericaceae) from Portugal are presented. Hypericum perfoliatum (section Drosocarpium) grows wild in the centre and south of Portugal; Hypericum humifusum and Hypericum linarifolium are both from section Oligostema, the former occurring throughout the country, while the second is distributed mainly in the north and centre; Hypericum pulchrum (section Taeniocarpium) is confined to the littoral north of Portugal. The essential oils were obtained by distillation–extraction, hydrodistillation and distillation in a modified Marcusson apparatus from the dried aerial parts of the different populations and were analysed by GC and GC–MS. Monoterpene hydrocarbons constituted the main fraction in all oils (43–69%, 53–85%, 28–45% and 48–65% for H. perfoliatum, H. humifusum, H. linarifolium and H. pulchrum, respectively). Sesquiterpene hydrocarbons (2–13%, 6–18%, 21–27% and 16–18%, respectively) and a third fraction of non-terpenic compounds (20–29%, 3–16%, 2–14% and 5–11%, respectively) from the four species attained relatively high amounts in all oils. Within each species, no major differences were detected in the essential oil composition, despite the fact that different locations, phenological phases and extraction methodologies were used. Notwithstanding the dominance of α-pinene in all four species' oils, cluster and principal components analysis on the identified components showed that the range of α-pinene, β-pinene and n-nonane supported a separation of the four species. The essential oil composition of the four species showed some qualitative resemblances, which correlate well with the taxonomical classification based on morphological characters.  相似文献   

5.
The essential oil of Trollius europaeus flowers obtained by hydrodistillation was analyzed by gas chromatography coupled with mass spectrometry (GC–MS). The compounds giving fragrance of essential oils commonly used in perfumery 3,7-dimethyl-1,6-octadien-3-ol, nonanal, 3-methyl-2-pent-2-enyl-cyclopent-2-enone and oxacycloheptadec-8-en-2-one, rare in the Plant Kingdom, were tentatively identified. In the analyzed essential oil, the saturated fatty acids hexadecanoic acid (7.54 %), tetradecanoic acid (4.24 %), dodecanoic acid (3.10 %) and unsaturated fatty acids 9,12,15-octadecatrienoic acid (3.47 %), hydrocarbons, namely eicosane (20.03 %), hexadecane (8.63 %) and 1,2-benzenedicarboxylic acid (2.39 %), were also found.  相似文献   

6.
The volatile constituents of the essential oils of 23 taxa belonging to the Apioideae subfamily were studied in detail. The investigated taxa were Pimpinella serbica (Vis.) Bentham & Hooker, Libanotis montana Cr., Cnidium silaifolium (Jacq.) Simk. ssp. orientale (Boiss.) Tutin, Bupleurum praealtum L., B. sibthorpianum S. S. var. diversifolium (Roch.) Hay, Aegopodium podagraria L., Torilis anthriscus (L.) Gmel., Orlaya grandiflora (L.) Hoffm., Laserpitium siler L., Laser trilobum (L.) Brokh., Chaerophyllum aureum L., C. hirsutum L., C. temulum L., Pastinaca sativa L., P. hirsuta Pancic., Tordylium maximum L., Physospermum cornubiense (L.) DC., Peucedanum alsaticum L., P. oreoselinum (L.) Moench, P. cervaria (L.) Cuss., P. austriacum (Jacq.) Koch, P. longifolium W. et K., and P. officinale L. All of these species grow wild in the central part of the Balkan Peninsula. The essential oils were found to be complex mixtures of various compounds, more than 100 constituents being in each taxon, with contributions of main products never exceeding 25% of the total content. Sesquiterpene hydrocarbons were found to be the main group of constituents of all taxa, except for Peucedanum species, where monoterpene hydrocarbons were identified as the main components. The chemotaxonomic value of the essential-oil composition is discussed according to results of principal-component analysis (PCA). The essential-oil composition mainly reflects current taxonomic relationships between the investigated taxa.  相似文献   

7.
Chemical composition of the essential oil (analysed by GC-FID and GC-MS), the content of macroelements and trace elements (analysed by ICP-AES), and antimicrobial activities were investigated in Teucrium arduini L. from Mt Biokovo (Croatia). Additionally, a study on the types and distribution of glandular trichomes which produce essential oils was investigated. The oil was characterized by a high concentration of sesquiterpene hydrocarbons (68.5%) of which β-caryophyllene (32.9%) and germacrene D (16.4%) being the major compounds. Among the macroelements, the content of calcium was the highest (9772 mg/kg), while the content of sodium was the smallest (117.74 mg/kg). Among the micronutrients, the most represented element was iron (72.07 mg/kg). The content of each investigated toxic metal (As, Hg, Pb, Cd and Cr) was below permissible levels. The essential oils showed antimicrobial activity against bacterial species tested, with MIC values ranging from 6.25 mg/mL to 37.50 mg/mL. Fungal species were susceptible with MIC values from 7.81 mg/mL and 25.00 mg/mL.  相似文献   

8.
To evaluate the chemotaxonomic significance of the essential oils of 23 populations of 18 Iranian Ferula species, the chemical composition of the oils was investigated by GC/FID and GC/MS. Altogether, 84 constituents, representing 81.3-99.7% of the total composition of the oils, have been identified. The composition of six species of the genus, i.e., F. oopoda, F. foetida, F. behboudiana, F. diversivittata, F. galbaniflua, and F. hezarlalehzarica, has been reported for the first time. The main constituents identified were α-terpinyl acetate (73.3%), 2,3,4-trimethylthiophene (2; 49.0%), sabinene (75.3%), verbenone (5; 69.4%), β-pinene (59.0-66.3%), and (Z)-β-ocimene (41.7%). Cluster analysis (CA) of the percentage content of the essential oil components of the Ferula species resulted in the characterization of four groups, i.e., taxa containing either i) monoterpene hydrocarbons, ii) oxygenated monoterpenes, iii) organosulfur compounds, or iv) monoterpene, sesquiterpene, and aliphatic hydrocarbons as the principal classes of compounds. Based on the results obtained, the chemical independence of F. hirtella from F. szowitsiana and of F. galbaniflua from F. gummosa at the specific level was concluded and their positions as distinct species were confirmed. The chemotaxonomic relationships among the representatives of the genus Ferula have been discussed in detail.  相似文献   

9.
Gas chromatography-flame ionisation detection (GC-FID) and gas chromatography–mass spectrometry (GC–MS) analyses of the essential oils of leaves and fruits of the ornamental Shinus molle L. were reported and their allelopathic effect on wheat (Triticum aestivum L.) was evaluated. Qualitative and quantitative differences between fruit and leaf oils were observed. Both oils were rich in monoterpene hydrocarbons and the major constituents were limonene and β-phellendrene (35.9–65.4%), α-phellendrene (24.3–20.1%), myrcene (12.8–7.7%) and α-pinene (5.9–1.7%) for fruits and leaves, respectively. Both essential oils showed a dose-dependent allelopathic activity on wheat germination and radicle elongation with leaf oil being the more phytotoxic.  相似文献   

10.
Plotococcus Miller & Denno is synonymized with Leptococcus Reyne (Coccoidea: Pseudococcidae). The genus is redescribed and the adult female of the type species, L. metroxyli Reyne, is redescribed and illustrated. All species hitherto included in Plotococcus are transferred to Leptococcus as L. capixaba (Kondo) comb. nov., L. eugeniae (Miller & Denno) comb. nov., L. hambletoni (Kondo) comb. nov., L. minutus (Hempel) comb. nov., and L. neotropicus (Williams & Granara de Willink) comb. nov. A new species of Leptococcus, L. rodmani Kondo sp. n., from leaves of Guarea guidonia (Meliaceae) from Colombia, is described and illustrated based on the adult female. A revised key to adult females of all species in the genus is provided.  相似文献   

11.
Reexamination and molecular phylogenetic analyses of American Terfezia species and Mattirolomyces tiffanyae revealed that their generic assignments were wrong. Therefore we here propose these combinations: Mattirolomyces spinosus comb. nov. (≡ Terfezia spinosa), Stouffera longii gen. & comb. nov. (≡ Terfezia longii) and Temperantia tiffanyae gen. & comb. nov. (≡ Mattirolomyces tiffanyae). In addition we describe a new species, Mattirolomyces mexicanus spec. nov. All species belong to the Pezizaceae. Based on these results Terfezia is not known from North America, Mattirolomyces is represented by two species and two new monotypic genera are present.  相似文献   

12.
When the chemical constitution of the essential oils of six species within three genera of the family Malvaceae were investigated, the essential oils of Gossypium hirsutum L. and Cienfuegosia rosei Fryxell were found to contain 67.0 % and 58.2 % hydrocarbons, respectively. Those of Hibiscus lasiocarpus (Cav.) and Callirhoe involucrata (Nutt.) Gray contained equal percentages of hydrocarbons (14 %), but that of Cienfuegosia drummondii (A. Gray) Lewt. contained only 2.9 % hydrocarbons. Beta-bisabolol was the major oxygenated component in G. hirsutum (13.7 %), Hibiscus militaris (Cav.) (55.0 %), and Hibiscus lasiocarpus (32.6 %), but the major constituents in the essential oil of C. involucrata were myrtenal (32.0 %) and trans-2-cis-6-nonadienal (12.0 %), and the major oxygenated component in C. rosei was an unknown sesquiterpene alcohol (17.4 %) with chemical and physical properties resembling those of beta-bisabolol. The concentration of total oil was 150.0 ppm in G. hirsutum; 50.0 ppm in H. militaris; 46.3 ppm in C. rosei; 41.0 ppm in H. lasiocarpus; 25. 4 ppm in C. drummondii; and 10.0 ppm in C. involucrata, all based on wet weight.  相似文献   

13.
14.
本文报道5个新组合:金银忍冬短胖孢(Cercosporidium diervilae (Ell. Et Ev) Baiet Cheng,comb.Nov.);紫穗槐菌绒孢(Mvcovelloslclla passaloroidzs(Winte r)Bai et Chengcomb.Nov.);朝鲜槐假尾孢(Pseudocercospora cladrastidis(Jacz.) Bai et Cheng·comb. Nov);白头翁假尾孢(pscudoccrco spora]ilitormis(D;vi s)Bai et Chengt comb·nOV·)荚燕假尾孢(Pseudocercospora varia(Peck)Bai et Cheng。Comb.nOV·)这5个新组合是从Cercospora属转来修正的。  相似文献   

15.
The qualitative and quantitative composition of the essential oils obtained from wild Sicilian rosemary plants (Rosmarinus officinalis L.) has been investigated. Samples were collected in Sicily after an ideal division of the island into three large areas, namely Val Mazara (M), Val di Noto (N) and Val Demona (D), according to an ancient and historical territorial subdivision of the island. The essential oils were obtained by hydrodistillation and analyzed by GC-FID-MS, identifying 100 compounds representing more than 96% of the oils. Monoterpenes, both hydrocarbons and oxygenated, were the most highly represented components: the former with a range of 21–68% and the latter with a range of 29–79%. On the basis of the results of this study, comprising a cluster analysis, and on the commonly accepted subdivision of rosemary essential oils, namely cineoliferum, verbenoniferum and camphoriferum chemotypes, most of the wild Sicilian rosemary samples must be classified as cineoliferum chemotype.  相似文献   

16.
New genera, Pseudochirotenon gen. nov. (with the type species P. eocaenicus sp. nov.), Archaeoheilus gen. nov. (type species A. scudderi sp. nov.), Primocentron gen. nov. (type species P. wickhami sp. nov.), and Pseudophaops gen. nov. (type species Otiorhynchus perditus Scudder, 1876), and new species, Pseudochirotenon eocaenicus sp. nov., Perapion rasnitsyni sp. nov., Archaeoheilus scudderi sp. nov., A. ovalis sp. nov., Primocentron wickhami sp. nov., and Eudiagogus vossi sp. nov., from the Early–Middle Eocene of the Green River are described. New combinations of names (Apionion evestigatum (Scudder, 1893), comb. nov., Archaeoheilus packardii (Scudder, 1893), comb. nov., A. provectus (Scudder, 1876), comb. nov., A. deleticius (Scudder, 1893), comb. nov., A. lacoei (Scudder, 1893), comb. nov., Pseudophaops perditus (Scudder, 1876), comb. nov.) are established. The first fossil records of the tribe Ecelonerini from the New World and genus Perapion from the Green River Formation are provided.  相似文献   

17.
Abstract:In the framework of ongoing studies on tropical representatives of Bacidia sensu lato, six species so far included in that genus are transferred to Fellhanera: Fellhanera africana (Vězda) Lücking comb. nov. (Bas.: Bacidia africana Vězda), Fellhanera albidocincta (Vain.) Lücking comb. nov. (Bas.: Bilimbia albidocincta Vain.), Fellhanera fragilis (Vězda) Lücking & Kalb comb. nov. (Bas.: Bacidia fragilis Vězda), Fellhanera mastothallina (Vain.) Lücking & Sérus. comb.nov. (Bas.: Bacidia mastothallina Vain.), Fellhanera naevia (Vain.) Lücking & Cáceres comb. nov. (Bas.: Bacidia naevia Vain.), and Fellhanera submicrommata (Vězda) Lücking & Kalb comb. nov. (Bas.: Bacidia submicrommata Vězda). Fellhanera angustispora Lücking is reduced into synonymy with F. naevia.  相似文献   

18.
Five new genera of the spider family Ochyroceratidae with remarkable palpal and epigynal characters are described:Luzonacera Li & Li,gen.nov.,Qiongocera Li & Li,gen.nov.,Relictocera Li & Li,gen.nov.,Sinoderces Li & Li,gen.nov.,and Thaiderces Li & Li,gen.nov.Six new species are described based on specimens collected in China,Philippines,Vietnam,and Thailand:Luzonacera chang Li & Li,sp.nov.,Luzonacera duan Li & Li,sp.nov.,Qiongocera hongjunensis Li & Li,sp.nov.,Relictocera qiyi Li & Li,sp.nov.,Sinoderces nawanensis Li & Li,sp.nov.,and Thaidercesjian Li & Li,sp.nov.In addition,two Psiloderces species are transferred to other genera:Sinoderces exilis (Wang & Li,2013) comb.nov.and Thaiderces vulgaris (Deeleman-Reinhold,1995) comb.nov.All type specimens are deposited in the Institute of Zoology,Chinese Academy of Sciences (IZCAS) in Beijing.  相似文献   

19.
An updated list of foliicolous lichens and their lichenicolous fungi known from Kenya (East Africa), chiefly based on a collection by the second author at three different localities, is presented. The new collections yielded 77 species, including three lichenicolous fungi, and two species and one subspecies are described as new: Arthonia pocsii Lücking & Kalb sp. nov. , Asterothyrium septemseptatum subsp. africanum Lücking & Kalb ssp. nov. and Aulaxina aggregata Lücking & Kalb sp. nov. . The latter has also been found in material from Costa Rica and is the first known lichenicolous species in the genus. Porina atropunctata Lücking & Vezda is placed into synonymy with P. karnatakensis Makhija et al. and P. multiloculata Makhija et al. into synonymy with P. lucida R. Sant. Furthermore, the following two new combinations are proposed: Coenogonium tanzanicum (Vezda & Farkas) Lücking & Kalb comb. nov. [Bas. Dimerella tanzanica Vezda & Farkas] and Sporopodium pilocarpoides (Zahlbr.) Lücking & Kalb comb. nov. [ Lopadium pilocarpoides Zahlbr.]. Byssoloma discordans (Nyl.) Vain., Calenia bullatinoides Lücking, Porina karnatakensis Makhija et al. Sporopodium citrinum (Zahlbr.) Elix, Lumbsch & Lücking, Sporopodium pilocarpoides (Zahlbr.) Lücking & Kalb, Strigula nigrocarpa Lücking, and the lichenicolous fungi Arthonia atropunctata Vain. and Gyalideopsis parvula Haf. & Vezda are new for the African continent (excluding Madagascar). The number of foliicolous lichen species known from Kenya is raised from 27 to 92, together with five lichenicolous fungi growing on them.  © 2002 The Linnean Society of London, Botanical Journal of the Linnean Society , 2002, 139 , 171–180.  相似文献   

20.
郭正堂 《植物研究》1987,7(2):53-79
本文报道中国韧革菌科(Stereaceae Pilat)真菌15种和1亚种,隶属于血革菌属(Haematostereum Pouzar)、齿脉菌属(Lopharia Kalchbr.& MacOwan)和柄杆菌属(Podoscypha Patouillard).其中有3个新组合种和2个新记录种,它们是:厚血革菌(Haematostereum australe(Lloyd)Z.T.Guo,comb.nov.)、紫灰血革菌(Haematostereum illudens(Berk.)Z.T.Guo,comb.nov.)、金丝血革菌(Haematostereum spectabile(Kl.)Z.T.Guo,comb。nov.)、纸状齿脉菌(Lopharia papyracea(Jungh.)Reid)和无毛柄杯菌(Podoscypha glabrescens(Berk.& Curt.)Boidin)。标本全部保藏于中国科学院微生物研究所真菌标本室(HMAS)。  相似文献   

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