AM真菌影響三葉草根系抗氧化酶活性的系統(tǒng)效應(yīng)
張瑞芹1,2 盧致霖2 陳潔雯2 唐鑫2 趙海泉1* 朱紅惠3 姚青2
(1. 安徽農(nóng)業(yè)大學(xué)生命科學(xué)學(xué)院 安徽 合肥 210095)
(2. 華南農(nóng)業(yè)大學(xué)園藝學(xué)院 廣東 廣州 510642)
(3. 廣東省微生物研究所 廣東 廣州 510070)
摘 要: 對(duì)三葉草接種AM真菌根內(nèi)球囊霉, 用盆栽試驗(yàn)和分根試驗(yàn)測(cè)定根系的菌根侵染率和抗氧化酶活性, 研究AM真菌對(duì)根系抗氧化酶活性的影響以及該影響的系統(tǒng)性。結(jié)果表明, 盆栽試驗(yàn)中接種根內(nèi)球囊霉顯著提高了根系中SOD,、POD,、CAT的活性, 表明AM真菌可以促進(jìn)根系的抗氧化酶活性; 分根試驗(yàn)中一半根系接種了根內(nèi)球囊霉的植株, 其另一半未接種的根系SOD、POD活性也增加, 表明AM真菌對(duì)根系抗氧化酶系統(tǒng)的促進(jìn)具有系統(tǒng)效應(yīng),。由于抗氧化酶系統(tǒng)是植物產(chǎn)生抗逆性的生理生化基礎(chǔ), 可以推測(cè), AM真菌對(duì)根系抗氧化酶活性的系統(tǒng)性提高有助于保護(hù)根系整體, 而非僅僅保護(hù)受侵染根段,。
關(guān)鍵詞: 叢枝菌根真菌, 三葉草, 抗氧化酶活性, 系統(tǒng)性誘導(dǎo)
生物谷推薦英文摘要
The systematical effect of the influence of AM fungus on the antioxidase activities in the roots of clover plants
ZHANG Rui-Qin1,2 LU Zhi-Lin2 CHEN Jie-Wen2 TANG Xin2 ZHAO Hai-Quan1* ZHU Hong-Hui3 YAO Qing2
(1. College of Life Science, Anhui Agricultural University, Hefei, Anhui 210095, China)
(2. College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China)
(3. Guangdong Institute of Microbiology, Guangzhou, Guangdong 510070, China)
Abstract: Clover plants (Trifolium repens L.) were inoculated with arbuscular mycorrhizal (AM) fun-gus, Glomus intraradices, in pot and split-root experiments. The mycorrhizal colonization and antioxi-dase activities in roots were measured for the influence of Glomus intraradices on the root antioxidase activities and the systematization of the influence. Results indicated that G. intraradices significantly enhanced the activities of SOD, POD, CAT in roots in the pot experiment, suggesting an increased an-tioxidase activity by AM fungus. For the plants with half roots inoculated with G. intraradices in the split-root experiment, the activities of SOD, POD also increased in the other half roots without G. intra-radices, suggesting the systematization of the increase in antioxidase by AM fungus. Given that the anti-oxidase system is the physilogical and biochemical basis of the resistance to diverse stresses in plants, this systematical increase may contribute to the protection of the entire roots, not of the infected ones only.
Keywords: Arbuscular mycorrhizal fungus, Clover plants, Antioxidase activities, Systemical induction
微生物學(xué)通報(bào)提供全文下載
