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葡萄孢盘菌属一新种——蚕豆葡萄孢的有性阶段   总被引:1,自引:0,他引:1  
本文报道了葡萄孢盘菌属的一个新种:蚕豆葡萄孢盘菌(Botryotinia fabae Lu et T.H.Wu sp.nov.)即蚕豆葡萄孢的有性阶段;并报道了新种子囊盘形成过程;新种有汉文和拉丁文描述。  相似文献   

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本文报道了葡萄孢盘菌属的一个新种: 蚕豆葡萄孢盘菌 (Botryotinia fabae Luet T.H.Wu sp.nov.)即蚕豆葡萄孢的有性阶段;并报道了新种子囊盘形成过程;新种有汉文和拉丁文描述。  相似文献   

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在陕西省太白县采集到伊贝母(Fritillaria pallidiflora Schrenk.)的菌核病致病真菌,伊贝母葡萄孢盘 Botryotinia fritillarii-pallidiflori Q.T.Chen et J.L.Li sp.nov.新种。并报道了其形态特征及其与椭圆葡萄孢 [Botrytis elliptica(Berk.)Cooke]和驴蹄草葡萄孢盘(Botryotinia calthae Hennebert et Elliott)的区别。  相似文献   

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通过对紫杉醇产生菌HD104的培养研究,确定了HD104菌株的分类地位,为葡萄孢属一新种——红豆杉葡萄孢(Botrytis taxi D.P.Zhou,W.X.Ping et Y.Wang sp.nov)。新种有拉丁文描述并附图,模式标本(HD104)保存于黑龙江大学微生物实验室(The Microbiology Lab of Heilongjiang University,HUML)。  相似文献   

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多毛孢属一个新种—雷州多毛孢   总被引:1,自引:0,他引:1  
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指隔孢属新种——粗壮指隔孢   总被引:1,自引:0,他引:1  
缪作清  雷丽萍 《菌物系统》1999,18(4):354-356
报道了一指隔孢属(Dactylella)新种:粗壮指隔孢(Dactylella crassa Z.Q.Miao,L.P.Lei&X.Z.Liu)。该种种是在进行云南食线虫真菌调查时发现的,它能产生黄型的大小两种分生孢子,将在发生孢子分别挑单孢培养,仍能同时产生大两种分生孢子,分包子梗粗装,全壁芽殖式产孢和分枝;捕食器官为状菌丝分枝组成的三维网。研究标本保存于中国科学院微生物研究所真菌标本室(HMA  相似文献   

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在雷州半岛上的湛江市郊,湖光岩畔,采到一条蔗褐蠹蛾 (Phragmatoecia castaneae Hubner)的僵硬虫尸,有孢梗束丛生。对虫尸及孢梗束进行分离,获得多毛孢属的一个新种,命名为雷州多毛孢(Hirsutella leizhouensis Fang et Tan)。本文报道该菌的形态学特征及其与近似种具疣多毛孢(H. nodulosa Petch)、褐色多毛孢(H. brownorum Mintef)的区别。  相似文献   

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为明确两种葡萄孢属真菌对不同百合品种叶片和花瓣的侵染能力,采用离体叶片接种法测定灰葡萄孢Botrytis cinerea和椭圆葡萄孢Botrytis elliptica对4个百合品种叶片和花瓣的侵染时间和病斑扩展速度。结果表明,供试百合花瓣接种灰葡萄孢病斑出现时间明显早于叶片,而不同品种花瓣接种椭圆葡萄孢病斑出现时间差异显著。此外,百合品种‘木门’叶片接种椭圆葡萄孢96 h后仍没有病斑出现,而花瓣接种后48 h病斑出现,说明‘木门’叶片对椭圆葡萄孢抗性较强,而花瓣较易感病。  相似文献   

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Understanding the mechanisms underlying tri-trophic interactions between insect herbivores, their host plants and natural enemies is an important aim in ecology. In the present study, the effect of urea fertilizer and vermicompost on a tri-trophic level cascade, comprising safflower, Carthamus tinctorius, safflower aphid, Uroleucon carthami and its primary parasitoid wasp, Praon yomenae, was investigated. Vermicompost increased the number of leaves, leaf area, fresh weight, dry weight, the total number of aphids and reduced the number of winged aphids and aphid load (Aphid load = number of aphids / plant fresh weight). Only two variables, plant phenol content and relative water content, were not significantly affected by vermicompost. Urea fertilizer had no impact on all variables except a significant effect on plant height. In another experiment, the effect of urea fertilizer and vermicompost on the wasp parasitoid was studied. The number of parasitoid mummies, mummification time, developmental time, the number of emerged adults, sex ratio, percentage of parasitism and hind tibia length was measured. Vermicompost had no significant effect on any of the measured parameters, but urea fertilizer increased the hind tibia length of the parasitoid. Vermicompost increased plant growth parameters and had an indirect and inhibiting effect on the safflower aphid itself. There was evidence of a bottom-up cascade to the third trophic level by adding fertilizers in this system: Urea fertilizer enhanced plant height but seemingly had no impact on the attacking herbivore. It is interesting that the effect of urea can be transferred to the third trophic level, that is parasitoid. This suggests that vermicompost could be used simultaneously with urea fertilizer, because urea fertilizer had a positive impact on the parasitoid and vermicompost had a positive impact on plant growth as well as the ability to reduce aphid load.  相似文献   

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The ectomycorrhizal fungus Pisolithus tinctorius was grown in vitro with different concentrations and combinations of three different sodium salts viz., sodium chloride, sodium sulphate and trisodium citrate (NaCl, Na2SO4 and Na3C6H5O7) for 30 days. At the end of the experiment the mycelial biomass and protein content of the fungus was evaluated. Based on the salts tested the combination of NaCl and Na2SO4 in optimum concentrations actually promoted the growth of P. tinctorius. Box-Behnken design with three variables like NaCl, Na2SO4 and Na3C6H5O7 was used to identify a significant correlation between the effect of these variables on mycelial biomass production. The experimental values are in good agreement with predicted values, the correlation coefficient being 0.9880.  相似文献   

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通过发芽试验,发现福建省霞浦县的红花(Carthamus tinctorius)BJ-26的种子在收获时具有休眠特性。  相似文献   

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In this research we present that Carthamus Tinctorius L. (gen. Asteraceae, otherwise known as Safflower) (Fig. 1) may contain agents active in Cryptococcal infections, malaria and Leishmaniasis, as treatment options are becoming scarce due to drug resistance development. Phytochemistry and pharmacological activities (antimicrobial, antimalarial, antileishmanial) of C. tinctorius L. were analyzed. The composition of volatile oil of safflower dried flowers was analyzed by gas chromatography-mass spectrophotometry with flame ionization detector (GC-FID) and in vitro sensitivity assays were performed to assess biological activity. 8 known and 3 unknown compounds were detected in the extract (Fig. 1). Then the Safflower ointment was manufactured and its acute toxicity study on rats was tested. The volatile oil of C.tinctorius L exhibited activity against Cryptococcus neoformans, Plasmodium falciparum and Leishmania donovani. Safflower volatile oil has anticryptococcal,antimalarial and antileishmanial effects. The prepared ointment had an excellent acute toxicity safety profile.  相似文献   

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不同产地红花的挥发油成分   总被引:4,自引:0,他引:4  
不同产地红花的挥发油成分郭美丽张汉明张芝玉苏中武(第二军医大学药学院,上海200433)Theconstituentsofesentialoilfromsafflower(CarthamustinctoriusL.)indifferentlocali...  相似文献   

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Callus induction and in vitro plantlet regeneration systems for safflower (Carthamus tinctorius L.) cv. Bhima using root, hypocotyl, cotyledon and leaf explants were optimized by studying the influence on organogenesis of seedling age, media factors, growth regulators and excision orientation. Supplementation of the medium with an auxin: cytokinin ratio < 1 enhanced the growth rate of callus cultures; however, for 2,4-D the ratio was > 1.34–11.41 μM concentrations of growth regulators (IAA, NAA, BA and Kinetin) in the medium were found effective for callus induction and regeneration in all explants. The calli could be maintained over 32 months. BA (4.43 μM) combined with casein hydrolysate (10 mg l-1) yielded the highest rate of shoot production on hypocotyl (3–6) and cotyledon (5–7) explants and cotyledonary derived callus (4–8). More shoots were produced on explants cut from the most basal region of cotyledons from 5 to 7-day-old seedlings than from older seedlings or more distal cut sites. Apolar placement of explants, inhibited shoot regeneration. The shoot regeneration potential remained upto 7 months in calli developed on NAA + BA. Of three media tested, MS was superior to SH-M and B5. Rooting of shoots was not efficient; 42% of the shoots were rooted on MS medium containing sucrose (7–8%) + IAA (2.8–5.7 μM). Capitula induction was observed in both callus mediated shoots on cotyledons and shoots on rooting medium with sucrose, IAA, NAA and IBA. Well developed plantlets were transferred to the field with a 34% success rate. This revised version was published online in June 2006 with corrections to the Cover Date.  相似文献   

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彩色豆马勃子实体的化感作用及其化感物质的分离鉴定   总被引:11,自引:2,他引:11  
彩色豆马勃能与松树、桉树形成外生菌根,研究其次生代谢产物对植物的影响具有重要意义。用水、乙醇和丙酮抽提彩色豆马勃的子实体,发现这些抽提物对稗草和水稻幼苗生长有极显着的抑制作用。丙酮抽提物对狼尾草和油菜幼苗生长有抑制作用。子实体的丙酮抽提物用硅胶柱色谱分离得到2个纯化合物,可鉴定为豆马勃内酯(Pisolactone)和麦角甾醇。该2个化合物在400μg·ml-1浓度下均显着抑制稗草幼苗根生长。豆马勃内酯在100μg·ml-1浓度下仍然极显着抑制稗草幼苗根生长.  相似文献   

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