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conidia
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  分生孢子
    The invasive processes of Pandora nouryi (Remaudière & Hennebert) Humber in the host aphid Myzus persicae (Sulzer) was observed with scanning electronic microscopy. It was found that the conidia attached to the surface of aphid germinated rapidly.
    利用扫描电镜观察了努利虫疠霉Pandora nouryi(Remaudière&Hennebert)Humber初生分生孢子接种桃蚜Myzus persicae(Sulzer)后孢子萌发、入侵以及菌体突破虫体的整个侵染过程。
短句来源
    About 60% conidia germinated to germ tube or globose appressorium for invasion within 3-5 h after attachment.
    结果表明:附着于虫体表面的初生分生孢子在3~5h后即有60%以上的萌发率,萌发的孢子形成芽管或产生球形或棍棒状的附着胞;
短句来源
    The conidia could germinate at 10~30℃,RH 85%~100% and pH 3~12,with the optimal condition at 25℃,RH100%,and pH 6.The lethal temperature of the fungus was 45℃ for 10 min.
    大型分生孢子萌发的温湿度范围分别为10~30℃、RH 85%~100%,pH值3~12,最适萌发条件为25℃、RH 100%和pH 6。 该菌株的致死温度为45℃10 min。
短句来源
    The toxicity of 10% Difenoconazole to chlamydospore and conidia with EC50 5.612 μg·mL-1 and 20.227 μg·mL-1,respectively;
    同一种杀菌剂对稻曲病菌厚垣孢子和分生孢子的抑制效果不同,10%世高对厚垣孢子的EC50为5.612μg·mL-1,对分生孢子的EC50为20.227μg·mL-1;
短句来源
    The conidia could germinate within the treatments from pH2 to pH12.pH7 was optimum,which the conidia lethal temperature was 58℃,10min.
    pH值3~12间病菌孢子均能萌发,最适pH值为7; 分生孢子致死温度为58℃、10min。
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  孢子
    CONTROL OF BROWN SPOT BY INDUCED RESISTANCE IN TOBACCO: FIELD APPLICATION OF 'PCF1' , A PREPARATION FROM CONIDIA OF ALTERNARIA ALTERNATA STRAIN TBA16
    赤星菌弱毒株孢子制剂PCF1对烟草赤星病的控制作用
短句来源
    The invasive processes of Pandora nouryi (Remaudière & Hennebert) Humber in the host aphid Myzus persicae (Sulzer) was observed with scanning electronic microscopy. It was found that the conidia attached to the surface of aphid germinated rapidly.
    利用扫描电镜观察了努利虫疠霉Pandora nouryi(Remaudière&Hennebert)Humber初生分生孢子接种桃蚜Myzus persicae(Sulzer)后孢子萌发、入侵以及菌体突破虫体的整个侵染过程。
短句来源
    43% Tabuconazole had lower inhibition to chlamydospore with EC50 11.659 μg·mL-1,whereas,good toxicity to conidia with EC50 7.185 μg·mL-1.
    而43%好力克对两种孢子的EC50分别为11.659μg·mL-1和7.185μg·mL-1。
短句来源
    The conidia could germinate within the treatments from pH2 to pH12.pH7 was optimum,which the conidia lethal temperature was 58℃,10min.
    pH值3~12间病菌孢子均能萌发,最适pH值为7; 分生孢子致死温度为58℃、10min。
短句来源
    The results indicated that the optimal C-source for mycelium growth and conidia yields of Acremonium hansfordii was xylose. The mycelia biomass and the conidia yield were 1.806 mg/mL and 7.061×106 conidia/mL respectively.
    结果表明,顶孢霉菌生长和产孢的最佳碳源为木糖,菌丝生物量和产孢量分别为1.806 mg/mL和7.061×106个孢子/mL;
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  “conidia”译为未确定词的双语例句
    The metabolites derived from supernatant could evidently inhibit germination and tube growth of conidia,the inhibit rate was up to 96.0% and 82.0% respectively.
    由发酵上清液制备的拮抗粗提物显著抑制病原孢子的萌发和芽管的伸长,抑制率分别为96.0%和82.0%。
短句来源
    The range of temperature for conidia germination was 15~35℃,30℃ was the optimum.
    萌发温度范围为15~35℃,最适温度30℃;
短句来源
    An emulsifiable formulation of Beauveria bassina conidia (Bb) produced using a diphasic fermentation technology was tested for efficiency against aphids infecting the bamboo shoots in Yuhang of Zhejiang Province during March and May 2003. Three aqueous dilutions (1×107,1×106 and 1×105 conidia·mL-1) were sprayed onto bamboo crown with water as negative control and 1000-fold dilution of imidacloprid 10% wettable powder (WP) as positive control.
    利用液-酵法生产的球孢白僵菌悬乳剂于2003年4~5月在浙江省余杭进行笋竹蚜虫的田间药效试验和农户示范,以3种不同浓度稀释液(含孢量分别为1×107、1×106、1×105个?mL-1)进行常规喷雾处理,并设清水对照及1000倍10%吡虫啉稀释液为阳性对照.
短句来源
    The results showed that the relative control efficacy against bamboo aphids on selected shoots with three dilutions was 60.0%, 75.1%, and 80.7% within 7 days after spray, respectively. With the increase of the conidia concentration, the control efficacy was enhanced.
    结果表明,定株竹冠喷雾7d后,3个浓度处理的相对防效分别为60.0%,75.1%和80.7%,防治效果随浓度增加而提高.
短句来源
    The range of pH was 2~12,with an optimum of pH6.0~8.5.The conidia can germinate well in optimum humidity and nutrition.
    pH范围在2~12,适宜pH为6.0~8.5。
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  conidia
After treatment of the mycelium with 5-azacytidine, the protoperithecia formation was accompanied by inversely proportional changes in the formation of conidia, both in the dark and after illumination.
      
Changes in Lipid Composition and Carbohydrate Composition of Aspergillus niger Conidia during Germination
      
crassa are involved in the light-dependent formation of protoperithecia and conidia.
      
Effect of Carbohydrate Composition of the Cytosol of Aspergillus niger Conidia on Their Viability During Storage
      
It is shown that the rate of sporogenesis, the appearance of low-molecular-weight thiols, and the activation of carbohydrate synthesis in spores adversely affected the viability of Aspergillus niger conidia during storage.
      
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Various factors affect the development of headblight of wheat caused by Gibbe-rella zeae (Schw.) Petch under field conditions.The present investigation carriedout in 1955 and 1956 at Nanking,Kiangsu province,was primarily concerned withthe development of spores of the pathogen and the amount of rainfall in relationto disease development.For the purpose of inducing epiphytoties of the disease,asusceptible variety of wheat to headblight was grown in the inoculated plots.Inoculation was made at the surface of the...

Various factors affect the development of headblight of wheat caused by Gibbe-rella zeae (Schw.) Petch under field conditions.The present investigation carriedout in 1955 and 1956 at Nanking,Kiangsu province,was primarily concerned withthe development of spores of the pathogen and the amount of rainfall in relationto disease development.For the purpose of inducing epiphytoties of the disease,asusceptible variety of wheat to headblight was grown in the inoculated plots.Inoculation was made at the surface of the soil with mycelium cultured on wheatgrain shortly after planting,and an "artificial rain" by frequent spray of water tothe plants was supplied after heading.Investigations were made on the develop-ment and dissemination of ascospores and conidia of the pathogen,the seasonaldevelopment of the disease and the meteorological factors involved. Field observations showed that the headblight fungus on the soil surface inthe inoculated plots produced both kinds of spores with ths ascospores much morepredominant than the conidia.Perithecia and mature ascospores could be formedboth in the fall and in next spring through early summer under conditions ofadequate moisture and warm temperature suitable for their development.It wasindicated by trapping the spores in the air that the ascospores produced on thesoil surface were the chief source of inoculum for primary infection although theconidia formed on the infected spikes were equally important in spreading the di-sease in the field later in the season.The frequency and amount of ascosporesand conidia present in the air depended upon the height in spore trapping.Whilespores were found most frequently and most abundantly at a height of 17 cm.above the ground,much less spores were caught at heights of 33 cm.and up to117 cm.There was a tendency to decrease in the amount of spores with theincrease in height.A comparative survey of the spores in the air in the inoculated ??and uninoculated plots indicated that a great majority of spores could not bedisseminated very far from their source of production.This,together with thefact that comparatively more spoies were trapped on raining days,made it rea-sonable to consider splashing rain as the more important agent than wind forspore dissemination. The amount of inoculum existing in the soil and the rainfall were proved tobe the factors of utmost importance for the epiphytotic of the disease.In 1955,the average percentages of headblight for the inoculated plots with and withoutthe spray of water were 29.4 and 13.4% respectively,in comparison with the neigh-bouring fields where only very few infected heads were observed.In 1956,theaverage percentages for headblight in the four experimental plots:(1) inoculatedand sprayed with water,(2) inoculated and not sprayed,(3) uninoculated andsprayed,and (4) uninoculated and not sprayed,were 42.98,42.05,11.91 and6.26%,respectively.In these four corresponding plots,the average percentagesfor culm rot were 4.27,3.89,3.65 and 2.17%.Although there was no significantdifference in the final percentages of both headblight and culm rot between thesprayed and unsprayed plots either with or without inoculation,probably due tothe continuous heavy rain in the latter part of the wheat-growing season,yethigher percentages were always observed in the sprayed plots than in the un-sprayed ones throughout the period of disease development.Under conditions ofabundant inoculum in the soil and heavy rainfall,increase in percentage of head-blight could reach as much as 32% within a period of two days even when theplants were already near maturity.In 1955,a daily average temperature over20℃ was found to be favorable for the development of headblight,but observa-tions made in 1956 did not show significant effect of the temperature on thedevelopment of disease.

1.赤霉病菌在土壤表面的病組織上能产生分生孢子及子囊孢子,而以子囊孢子为??主。子囊孢子在播种后入冬前和入春后都能發生,以春夏季發生較多,冬季發生極少。子囊壳形成的多少与成熟程度决定于气温和土湿,較高的温度和潮湿土壤有利于子囊壳的形成和子囊孢子的成熟. 2.春季在麦株附近空气中出現的病菌孢子,前期以子囊孢子为主,后期子囊孢子和分生孢子都有發生。孢子出現的次数和数量以距离地面0.5尺高度的最多,愈高則愈少;孢子發生的数量在雨天或雨后最多。土壤表面形成的子囊孢子和病穗上产生的分生孢子,其傳播似都以雨水的飞濺作用为主,且大部分孢子的傳播距离并不很远。3.在土壤接菌的情况下,苗腐和基腐病的發生并不严重,更少引起植株死亡的現象。秆腐在1955年發生極少,1956年在大田及試驗区內都很普遍。4.土壤內病菌量和雨湿的多少是影响穗腐和秆腐的主要因素,而前者更为重要。在土壤接种喷水、接种不噴水、不接种噴水和不接种不喷水4区,穗腐率分別为42.98,42.05,11.91及6.26%,秆腐率分別为4.27,3.89,3.65及2.17%。5.大量的病菌孢子和連續降雨是促成病害迅速發展的主要条件。20℃以上的日平均温度似有利于病害...

1.赤霉病菌在土壤表面的病組織上能产生分生孢子及子囊孢子,而以子囊孢子为??主。子囊孢子在播种后入冬前和入春后都能發生,以春夏季發生較多,冬季發生極少。子囊壳形成的多少与成熟程度决定于气温和土湿,較高的温度和潮湿土壤有利于子囊壳的形成和子囊孢子的成熟. 2.春季在麦株附近空气中出現的病菌孢子,前期以子囊孢子为主,后期子囊孢子和分生孢子都有發生。孢子出現的次数和数量以距离地面0.5尺高度的最多,愈高則愈少;孢子發生的数量在雨天或雨后最多。土壤表面形成的子囊孢子和病穗上产生的分生孢子,其傳播似都以雨水的飞濺作用为主,且大部分孢子的傳播距离并不很远。3.在土壤接菌的情况下,苗腐和基腐病的發生并不严重,更少引起植株死亡的現象。秆腐在1955年發生極少,1956年在大田及試驗区內都很普遍。4.土壤內病菌量和雨湿的多少是影响穗腐和秆腐的主要因素,而前者更为重要。在土壤接种喷水、接种不噴水、不接种噴水和不接种不喷水4区,穗腐率分別为42.98,42.05,11.91及6.26%,秆腐率分別为4.27,3.89,3.65及2.17%。5.大量的病菌孢子和連續降雨是促成病害迅速發展的主要条件。20℃以上的日平均温度似有利于病害的發展,但兩年的結果不很一致,可能由于其他因子的影响。

The disease of Verticillium wilt commonly occurs in the cotton growing area of Liaoning province in recent years.Through a series of morphological and physiological studies,the fungus is identified as Verticillium albo—atrum R.et B. The fungus has a better growth on the modified Czapeks' agar medium as well as on the potato—sugar agar medium.After 4 to 5 days,the fungus shows an abundant growth of mycelia,conidia and microsclerotia on the mentioned media. The temperature for the growth of the fungus lies...

The disease of Verticillium wilt commonly occurs in the cotton growing area of Liaoning province in recent years.Through a series of morphological and physiological studies,the fungus is identified as Verticillium albo—atrum R.et B. The fungus has a better growth on the modified Czapeks' agar medium as well as on the potato—sugar agar medium.After 4 to 5 days,the fungus shows an abundant growth of mycelia,conidia and microsclerotia on the mentioned media. The temperature for the growth of the fungus lies between 17°to 28℃,the optimum being 25℃.The optimum temperature for the germination of coinidia is from 15°to 20℃.The conidia of the fungus have a high germination percentage on the one percent dextrose solution.However,they also germinate well on sterilized water;and hence,it seems to indicate that the requirement of nutrients for the germination of conidia is not strict. From the results of wound inoculation with spore suspension,it is indicated thet the conidia are able to infect the roots and stems of the plants in the seedling, flowering and belling stages.However,a higher percentage of infection can be obtained from the flowering to belling stage in 8 to 16 days.

1.棉黄萎病病原菌,经鉴定后,采用 Verticillium albo-atrum Reinke et Berthold学名。2.最适本病原菌生育的培养基,以改良 Czepek's 组合和马铃薯培养基为最好,在这两种培养基上菌丝生长旺盛,经过4—5天后都能生很多分生孢子,并渐生成小菌核。3.本病原菌的发育温度以17°—28℃较好、其中尤以25℃最好。孢子发芽温度以15°—20℃篇最好、在1%葡萄糖液中发芽最好。但在灭菌水中发芽亦好,对营养的要求并不太高。4.本病原菌自苗期(具四真药)开始直至后期,皆能侵入棉株内部,其中尤以用孢子悬浮液于棉根附近接种的办法,得知在开花期至结铃期皆能显现较高的发病率、根据实验记载,在棉花生育期中,接种后一般8—16天左右即能现出病征,此比前人记载期限较早。

Colletotrivhum camelliae Massee occurred severely on Camellia Oleosa as well as on Theasinensis L.over a vast area in the South of Yangtze river.It caused a total loss of about60% premature dropping of the fruits.The pathogen most probably over-wintered withmycelia in the infected cankers on the branches or in the diseased bud-end.Symptoms onfruits were dark-brown lesions with dots of scarlet conidia masses arranged in concentric ringsunder moist condition.Conidia measured 12-24×4.5-6μ on PDA and...

Colletotrivhum camelliae Massee occurred severely on Camellia Oleosa as well as on Theasinensis L.over a vast area in the South of Yangtze river.It caused a total loss of about60% premature dropping of the fruits.The pathogen most probably over-wintered withmycelia in the infected cankers on the branches or in the diseased bud-end.Symptoms onfruits were dark-brown lesions with dots of scarlet conidia masses arranged in concentric ringsunder moist condition.Conidia measured 12-24×4.5-6μ on PDA and 12-28.5×4.5-6μ onsynthetic media.Setae were prominent either on media or on plant tissues,measured 15.3-108.6×3.6-5.4μ.Conidia germinated after 15 days in low temperatures or under dry condi-tions.They were spread by splashes of rain from July to October.The incubation periodof the disease varied with temperature,usually 5-10 days in summer.The varietal differencein disease resistance was notable.It seemed that the structure of the epidermal cells andthe constituents of the cells of fruits were to some extent related to the disease resistance.

油茶炭疽病引起落花、落蕾、落果及落叶。病落果率约为全年总落果率的60%,根据标准株平均统计,病落蕾率占总落蕾率的26—45%。通过菌种形态比较与接种试验,肯定病原与茶叶上云纹叶枯病菌系同一种为 Colletotrichum camelliae Massee。其无性世代发生在寄主各部位,呈现不同征状,有性世代仅出现在连续阴雨一个月以上的枝梢及花蕾的病斑上。分生孢子具有抗旱及抗低温能力,但不能忍受冰冻温度。初次侵染来源为枝干的溃疡斑及病蕾蕾痕,经春雨浸湿大量产生,通过雨中风力广泛传布。干燥气流在传病上不起作用。夏、秋晨间露水滴溅也可使病菌孢子扩散侵染。根据湘西怀化县长期观察试验,象鼻虫在传病上并不是重要因素。各地区温差影响发病迟早,湿差影响严重度,雨天日数决定落蕾、落果的数量与时期。品种抗病性差异除形态特征外(气孔数量、角质层厚薄等),可能与表皮细胞层次与缀密度以及细胞的内含成份有关,果形及色泽与抗病性差异无实质关系。小果型品种(湖南珍珠于、苦槠子,江西宜春中子)的抗病性可能由上述的特性决定。

 
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