首页|生防菌 TB2对甘蔗叶片抗病相关酶活的诱导作用

生防菌 TB2对甘蔗叶片抗病相关酶活的诱导作用

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以多酚氧化酶（PPO）、过氧化物酶（POD）、超氧化物歧化酶（SOD）、苯丙氨酸解氨酶（PAL）和过氧化氢酶（CAT）等5种防御酶作为植物抗病性反应指标，研究生防菌 TB2和甘蔗赤腐病病菌对甘蔗植株抗病相关酶的影响。结果表明，先接病原菌后喷施生防菌 TB2、先喷施生防菌后接病原菌、病原菌处理、生防菌处理等处理后，与植物防御抗病相关的 PPO、POD、SOD、PAL、CAT 防御酶活性均比对照组高，表明 TB2和赤腐病菌均能诱导甘蔗叶片中的防御酶活性增强；先喷施生防菌后接病原菌的防御酶活性比同期先接病原菌后喷施生防菌的高，说明 TB2诱导能力强于赤腐病菌。两者共同处理的甘蔗叶片中5种防御酶活性高于单独处理。可见 TB2和赤腐病菌共同诱导具有协同增效作用。
Induction of Disease-resisting Enzymesin Sugarcane by Biocontrol Bacterium,TB2
Activities of polyphenol oxidase (PPO),peroxidase (POD),superoxide dismutase (SOD),phenylalanine ammonia lyase (PAL),and catalase (CAT)in sugarcane leaves were determined to evaluate the efficiency of a biocontrol bacterium,TB2,in inducing these disease-resisting enzymes,as well as the correlation between the enzymes and the disease resistance of sugarcane toward red rot pathogens.Treatments, including pathogen inoculation,TB2 spraying,and TB2 sprayings before and after pathogen inoculation,were applied to examine the variations on the enzymatic activities in the leaves of the treated sugarcane plants.It was found that the enzymatic activities in the treated plants were significantly higher than those in control,indicating an induction effect byeither TB2 or the red rot pathogens.The effect was greater when TB2 was applied along with the pathogenic inoculation, especiallyif the leaves were pre-sprayed with TB2.Although the biocontrol bacterium showed a stronger induction ability than the pathogens,a synergism seemed evidentwhen both were present on sugarcane.

sugarcanebiocontrol bacteriadefensive enzymesinduced resistance

梁艳琼、唐文、吴伟怀、习金根、郑肖兰、李锐、郑金龙、贺春萍、易克贤

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中国热带农业科学院环境与植物保护研究所/农业部热带农林有害生物入侵检测与控制重点开放实验室/海南省热带农业有害生物检测监控重点实验室，海南 海口 571101

海南大学环境与植物保护学院，海南 海口 570228

农业部橡胶树生物学与遗传资源利用重点实验室/省部共建国家重点实验室培育基地/海南省热带作物栽培生理学重点实验室/农业部儋州热带作物科学观测实验站，海南 儋州 571737

甘蔗 生防菌 防御酶系 诱导抗性

中央级公益性科研院所基本科研业务费专项中央级公益性科研院所基本科研业务费专项中央级公益性科研院所基本科研业务费专项中国热带农业科学院橡胶研究所省部重点实验室、科学观测实验站开放课题

2015hzs1J0142012hzs1J0122014hzs1J012RRI-KLOF201506

2016

10.19303/j.issn.1008-0384.2016.06.013

福建农业学报
福建省农业科学院

福建农业学报

CSTPCD北大核心
影响因子：0.656
ISSN：1008-0384
年,卷(期)：2016.31(6)
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