| AMF对紫花苜蓿抗盐生理特性的影响 |
| |
| 引用本文： | 李倩,郑爱琴,马玉一,张永志,王永新,朱慧森,许庆方,郝鲜俊,高文俊.AMF对紫花苜蓿抗盐生理特性的影响[J].草原与草坪,2017(5):85-91. |
| |
| 作者姓名： | 李倩 郑爱琴 马玉一 张永志 王永新 朱慧森 许庆方 郝鲜俊 高文俊 |
| |
| 作者单位： | 山西农业大学 动物科技学院,山西 太谷,030801 |
| |
| 基金项目： | 国家自然科学基金，山西省回国留学人员科研基金 |
| |
| 摘 要： | 试验选用3种丛枝菌根真菌(AMF)接种苜蓿品种金皇后,研究了5个梯度NaCl(0、50、100、150和200 mmol/L)对金皇后苜蓿抗盐生理特性的影响。结果表明:金皇后苜蓿的脯氨酸含量和可溶性糖含量随着NaCl浓度的增加总体呈先升高后降低的趋势,在100 mmol/L NaCl处理下达到最高,接种Gm真菌的二者含量分别为6.37和1.91μg/g;金皇后丙二醛(MDA)含量随着NaCl浓度的增加呈升高趋势,且在4个NaCl浓度之间差异显著;超氧化物歧化酶(SOD)和过氧化物酶(POD)活性随着NaCl浓度的增加呈先升高后降低的趋势,在150 mmol/L NaCl处理下二者活性下降,接种Gm真菌的2种抗氧化酶活性分别比处理组下降了48.48%和43.71%;同时金皇后在盐环境下光合指标的变化幅度较大,其中Ci随着NaCl浓度的增加而增加,P_n,G_s和T_r随着NaCl浓度的增加而下降;金皇后最大耐盐程度为150 mmol/L NaCl,且接种摩西球囊霉(Gm)效果优于幼套球囊酶(Ge)和根内球囊霉(Gi)。
|
| 关 键 词： | 金皇后苜蓿 丛枝菌根真菌 NaCl 耐盐性 |
Effect of AMF on salt resistance characteristics of alfalfa |
| |
| Abstract: | The salt resistance of alfalfa (Medicago sitiva cv.Golden Empress) inoculated with 3 arbuscular mycorrhizal fungi (AMF) were studied under NaCl stress (0,50,100,150 and 200 mmol/L).The results showed the content of proline (Pro) and soluble sugar (SS) had a tend of decreasing firstly and then increased with the increase of NaCl concentration,and the highest value was obtained in the treatment of 100mol/L,the concentrations of Gm fungi were 6.37 and 1.91 (μg/g).The content of MDA increased with the increase of NaCl concentration,and the difference among NaCl concentrations was significant.The content of SOD and POD had a tend of decreasing firstly and then increased with the increase of NaCl concentration.The activity of SOD and POD decreased under the stress of 150 mmol/L NaCl.The The activity of SOD and POD of Gm inoculated alfalfa decreased by 48.48% and 43.71%.At the same time,the change of photosynthetic characteristics was in-creased.The content of Ci increased with the increase of NaCl concentration,Pn ,Gs ,Tr decreased with the in-crease of NaCl concentration.The maximum salt concentration Golden Queen tolerated was 150mmol/L,and the effect of Glomus mosseae (Gm) was better than Glomus etunicatum (Ge) and Glomus intraradices (Gi). |
| |
| Keywords: | Medicago sativa cv Golden Empress arbuscular mycorrhizal fungi (AMF) NaCl salt resistance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
