Flavonol Glucoside and Antioxidant Enzyme Biosynthesis Affected by Mycorrhizal Fungi in Various Cultivars of Onion (Allium cepaL.)

2016 ◽  
Vol 64 (1) ◽  
pp. 71-77 ◽  
Author(s):  
Mohanna Mollavali ◽  
Saheb Ali Bolandnazar ◽  
Dietmar Schwarz ◽  
Sascha Rohn ◽  
Peer Riehle ◽  
...  
Keyword(s):  
Antioxidant Enzyme ◽  
Mycorrhizal Fungi ◽  
Enzyme Biosynthesis

scholarly journals Increased Tolerance of Citrus (Citrus tangerina) Seedlings to Soil Water Deficit after Mycorrhizal Inoculation: Changes in Antioxidant Enzyme Defense System

2013 ◽  
Vol 41 (2) ◽  
pp. 524 ◽  
Author(s):  
Qiu-Dan NI ◽  
Ying-Ning ZOU ◽  
Qiang-Sheng WU ◽  
Yong-Ming HUANG
Keyword(s):  
Antioxidant Enzyme ◽  
Soil Water ◽  
Water Deficit ◽  
Mycorrhizal Fungi ◽  
Enzyme System ◽  
Arbuscular Mycorrhizal ◽  
Temporal Variations ◽  
Soil Drying ◽  
Soil Water Deficit ◽  
Antioxidant Enzyme System

Arbuscular mycorrhizal fungi (AMF) can enhance tolerance of plants to soil water deficit, whereas morphological observations of reactive oxygen species and antioxidant enzyme system are poorly studied. The present study thereby evaluated temporal variations of the antioxidant enzyme system in citrus (Citrus tangerina) seedlings colonized by Glomus etunicatum and G. mosseae over a 12-day period of soil drying. Root colonization by G. etunicatum and G. mosseae decreased with soil drying days from 32.0 to 1.0% and 50.1 to 4.5% in 0-day to 12-day, respectively. Compared to the non-AM controls, the AMF colonized plants had significantly lower tissue (both leaves and roots) hydrogen peroxide (H2O2) and superoxide anion radical (O2•–) concentrations during soil water deficit, whereas 1.03–1.92, 1.25–1.84 and 1.18–1.69 times higher enzyme activity in superoxide dismutase, peroxidase (POD) and catalase. In situ leaf H2O2 and root POD location also showed that AM seedlings had less leaf H2O2 but higher root POD accumulation. Furthermore, significantly higher root infection and antioxidant enzymatic activities in plants colonized with G. mosseae expressed than with G. etunicatum during the soil drying. These results demonstrated that the AMs could confer greater tolerance of citrus seedlings to soil water deficit through an enhancement in their antioxidant enzyme defence system whilst an decrease level in H2O2 and O2•–.

Comparison of antioxidant enzyme biosynthesis by free and immobilized Aspergillus niger cells☆

2000 ◽  
Vol 26 (7) ◽  
pp. 544-549 ◽  
Author(s):  
Maria B Angelova ◽  
Svetlana B Pashova ◽  
Ludmila S Slokoska
Keyword(s):  
Aspergillus Niger ◽  
Antioxidant Enzyme ◽  
Enzyme Biosynthesis

Heavy metal binding by mycorrhizal fungi

1994 ◽  
Vol 92 (2) ◽  
pp. 364-368 ◽  
Author(s):  
Ulrich Galli ◽  
Hannes Schuepp ◽  
Christian Brunold
Keyword(s):  
Heavy Metal ◽  
Metal Binding ◽  
Mycorrhizal Fungi ◽  
Heavy Metal Binding
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