搜索结果: 1-15 共查到“Alternaria”相关记录27条 . 查询时间(0.14 秒)
目的 研究亳芍内生真菌Alternaria alternate的次生代谢产物。方法 利用硅胶、SephadexLH-20、反相、中压、高效液相制备等多种色谱法分离化合物，采用波谱方法对化合物进行结构鉴定。结果 从内生真菌Alternaria alternate次生代谢产物中分离得到15个化合物，分别鉴定为methyl 4-acetamido-3-hydroxybenzoate（1）、（E）-met...
Alternaria alternata (Fr.) Keissler – New pathogen on sugar beet leaf in Slovakia – New and Unusually Reports
Fungi Pathogens Plants Alternaria leaf spot crops
2015/1/28
The fungus Alternaria alternata (Fr.) Keissler is a widespread facultative pathogen of many important plants, mainly of sunflower (GODIKA et al. 2000), tomato (MORRIS et al. 2000), pepper, eggplant (O...
First report of Alternaria tomatophila and A. grandis causing early blight on tomato and potato in Brazil
Alternaria solani etiology phylogeny
2014/11/25
Strong population subdivision according to the host was revealed in a study designed to assess the genetic variability of Alternaria solani on potato (Solanum tuberosum) and tomato (S. lycopersicum) i...
以基础培养基（查彼培养基＋碳酸钙＋苹果角质）为营养优化了长柄链格孢(Alternaria longipes)产角质酶的环境和营养条件。结果表明最佳产酶的环境条件是：培养时间8 d，培养温度25 ℃，pH 5.5；通过正交试验确定最佳产酶的营养条件是：蔗糖3％，干酪素1％，吐温-80 0.3%；酶活高达175.2 U/mL，是基础培养基酶活力的11.0 倍。
Efficient Synthesis of (S)-1-(2-chlorophenyl)ethanol in the Submerged Culture of Alternaria alternata Isolate
Alternaria alternata bioconversion biocatalysis 2-chloroacetophenone fermentation optimization
2009/9/15
99%. Under the optimum conditions, after 54 h reaction time, 24 mmol/L 2 from 30 mmol/L 1 could be produced. As a result, the submerged fer-mentation of A. alternata EBK-8 was found to be suitable for...
SEASONAL OCCURRENCE OF ALTERNARIA (1993–2004) AND EPICOCCUM (1994–2004) SPORES IN TRIESTE (NE ITALY)
airborne spores Alternaria Epicoccum seasonal variation
2010/12/22
Fungal spores are known to trigger allergic respiratory diseases. Very little is known about airborne fungal spore presence in Trieste. This paper reports the seasonal (June-October) Alternaria (1993–...
METEOROLOGICAL AND AGRICULTURAL EFFECTS ON AIRBORNE ALTERNARIA AND CLADOSPORIUM SPORES AND CLINICAL ASPECTS IN VALLADOLID (SPAIN)
Alternaria Cladosporium meteorological factors crops allergy
2010/12/22
The aeropalynological monitoring was carried out from 1 February 2005–31 January 2007. The total number of spores collected during the main spore season (MSS) in 2005 was 4,500 for Alternaria and 93,7...
［目的］〖HTK〗建立极细链格孢菌（Alternaria tenuissima）的原生质体遗传转化体系。［方法］〖HTK〗采用酶解法制备极细链格孢菌的原生质体，并通过PEG/CaCl2介导的化学方法将含有G418抗性标记的DNA转入极细链格孢菌原生质体。［结果］〖HTK〗转化子生长表型及其基因组DNA的PCR检测表明抗性基因已成功整合到极细链格孢菌基因组中。该方法的转化率达3～4个转化子/...
为了解链格孢菌（Alternaria tenuissima）遗传学背景，克隆及研究该菌功能基因，根据Gateway技术构建了既能在酵母细胞中表达外源基因又能在原核细胞大量复制的酵母表达载体pRS-DEST42，构建了细极链格孢菌（A. tenuissima）cDNA酵母表达文库。经检测，该文库的平均滴度为2.44×106（cfu/ml），文库总容量为2.44×107，阳性克性率为100%，平均插入...
分离到烟草叶围细菌136株，通过对峙培养实验筛选出对烟草赤星病菌 A. alternate 有较强拮抗活性的9个菌株。离体叶片生防测定实验表明，9株细菌均能不同程度的减轻烟草赤星病的发生。其中菌株Tpb88具有较强和稳定的拮抗作用，无菌滤液实验表明，叶围细菌Tpb88在一定浓度范围内能有效抑制A.alternata菌丝生长、孢子萌发和芽管伸长，且浓度越高，抑制能力越强。本研究结果表明 Tpb88 ...
RELATIONSHIP BETWEEN SULPHUR FERTILIZATION, GLUCOSINOLATE CONTENT AND INFECTION LEVEL OF SEEDS OF SPRING OILSEED RAPE ‘MARGO’ WITH ALTERNARIA BRASSICAE
Brassica napus glucosinolates Alternaria brassicae sulphur fertilization
2009/3/31
Material for analyses was the spring oilseed rape ‘Margo’ seeds coming from a three-year experiment established at the Experiment Station of Cultivar Evaluation in Chrząstowo near Nakło (53...
Black spot on flowering cabbage caused by Alternaria brassicicola（Schwein.）Wiltshire in Japan
flowering cabbage Alternaria brassicicola black spot
2009/3/17
A black spot disease on flowering cabbage (Brassica oleracea L. var. acephala DC.) was found in Shizuoka Prefecture, Japan in March 2003. A fungus was isolated and used to inoculate cabbage leaves t...
Epidemiological studies of white rust, downy mildew and Alternaria blight of Indian mustard（Brassica juncea（Linn.）Czern. and Coss.）
Disease incidence maximum minimum temperature relative humidity
2009/3/3
White rust, downy mildew and Alternaria blight caused by Albugo candida (Pers.) Kuntze Peronospora parasitica (Pers.) (de Bary) and Alternaria brassicicola (Schw.) Wiltshire respectively are impor...
Determination of Alternaria Brown Spot（Alternaria alternata f.sp. citri）Disease on Minneola Tangelo in Çukurova Region
Alternaria Brown Spot（Alternaria alternata f.sp. citri）Disease Minneola Tangelo Ç ukurova Region
2009/1/16
In this study, the incidence and severity of Alternaria brown spot disease (Alternaria alternata f.sp. citri) in the Çukurova region were determined. Thirty-five Minneola tangelo orchards, with...
Iprodione Resistance of Alternaria alternata f.sp. citri Minneola Tangelo Isolates in Turkey
Iprodione Resistance Minneola Tangelo Isolates Turkey
2009/1/15
In this study, isolates of Alternaria alternata f.sp. citri, cause of citrus brown spot, were obtained from Minneola tangelo orchards in Çukurova Region where disease appeared and after pathoge...