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ydd1982銅蟲 (小有名氣)
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[求助]
英文文獻(xiàn)需要翻譯一下，誰能幫下忙
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Cultivable diversity of bacteria associated with citrus was investigated as part of a larger study to understand the roles of beneficial bacteria and utilize them to increase the productive capacity and sustainability of agro-ecosystems. Citrus roots from Huanglongbing (HLB) diseased symptomatic and asymptomatic citrus were used in this study. A total of 227 and 125 morphologically distinct colonies were isolated and characterized from HLB asymptomatic and symptomatic trees, respectively. We observed that the frequency of bacterial isolates possessing various plant beneficial properties was significantly higher in the asymptomatic samples. A total of 39 bacterial isolates showing a minimum of five beneficial traits related to mineral nutrition [phosphate (P) solubilization, siderophore production, nitrogen (N) fixation], development [indole acetic acid (IAA) synthesis], health [production of antibiotic and lytic enzymes (chitinase)], induction of systemic resistance [salicylic acid (SA) production], stress relief [production of 1-amino-cyclopropane-1-carboxylate deaminase] and production of quorum sensing [N-acyl homoserine lactones] signals were characterized. A bioassay using ethidium monoazide (EMA)-qPCR was developed to select bacteria antagonistic to Candidatus Liberibacter asiaticus. Using the modified EMA-qPCR assay, we found six bacterial isolates showing maximum similarity to Paenibacillus |
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ydd1982
銅蟲 (小有名氣)
- 應(yīng)助: 0 (幼兒園)
- 金幣: 1626.9
- 帖子: 95
- 在線: 26.8小時(shí)
- 蟲號(hào): 877109
- 注冊(cè): 2009-10-19
- 專業(yè): 果樹學(xué)
3樓2011-04-18 23:46:07
shirongjiu
金蟲 (正式寫手)
- 翻譯EPI: 18
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- 蟲號(hào): 727330
- 注冊(cè): 2009-03-20
- 性別: GG
- 專業(yè): 環(huán)境微生物學(xué)
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
ydd1982(金幣+15, 翻譯EPI+1): 第一句話好像還可以準(zhǔn)確一些 2011-04-18 23:42:49
sltmac(金幣+15): 謝謝~~~ 2011-04-21 23:16:16
ydd1982(金幣+15, 翻譯EPI+1): 第一句話好像還可以準(zhǔn)確一些 2011-04-18 23:42:49
sltmac(金幣+15): 謝謝~~~ 2011-04-21 23:16:16
| 為了解有益細(xì)菌并利用它們提高農(nóng)業(yè)生態(tài)系統(tǒng)生產(chǎn)能力及可持續(xù)發(fā)展性，本文選取有黃龍病癥狀與無病癥狀的柑橘樹根，研究了與柑橘樹有關(guān)的可培養(yǎng)的細(xì)菌多樣性。（研究結(jié)果顯示：）在有病及無病樹根上分別分離到227和125個(gè)有顯著形態(tài)差異的菌落。在無病的柑橘樹根上分離到對(duì)樹木有益的細(xì)菌菌落的頻率高于有病的處理�？傆�(jì)有39個(gè)細(xì)菌菌株具有至少五種對(duì)樹木生長(zhǎng)有益的特性，如礦物營養(yǎng)（磷溶解、含鐵細(xì)胞形成、固氮）、健康（產(chǎn)抗生素及溶解酶（幾丁質(zhì)酶）、誘導(dǎo)協(xié)同抗性（產(chǎn)水楊酸）、抗壓（產(chǎn)生1-氨基環(huán)丙烷-1-羧基脫氨酶）、產(chǎn)生群體感應(yīng)信號(hào)分子（N-�；呓z氨酸內(nèi)酯）。此外，建立了EMA-qPCR方法用以篩選對(duì)柑橘潰瘍病菌（Candidatus Liberibacter asiaticus）有抗性的細(xì)菌菌株。通過優(yōu)化該方法，發(fā)現(xiàn)有6株細(xì)菌與類芽孢桿菌有最大相似性。 |
2樓2011-04-18 09:55:04
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