Hydrogen peroxide accumulation in Medicago truncatula roots colonized by the arbuscular mycorrhiza-forming fungus Glomus intraradices

Planta ◽  
1999 ◽  
Vol 208 (3) ◽  
pp. 319-325 ◽  
Author(s):  
Peter Salzer ◽  
Hélène Corbière ◽  
Thomas Boller
Keyword(s):  
Hydrogen Peroxide ◽  
Arbuscular Mycorrhiza ◽  
Medicago Truncatula ◽  
Glomus Intraradices ◽  
Hydrogen Peroxide Accumulation

scholarly journals Differential Expression of Eight Chitinase Genes in Medicago truncatula Roots During Mycorrhiza Formation, Nodulation, and Pathogen Infection

2000 ◽  
Vol 13 (7) ◽  
pp. 763-777 ◽  
Author(s):  
Peter Salzer ◽  
Athos Bonanomi ◽  
Katinka Beyer ◽  
Regina Vögeli-Lange ◽  
Roger A. Aeschbacher ◽  
...  
Keyword(s):  
Arbuscular Mycorrhiza ◽  
Medicago Truncatula ◽  
Glomus Intraradices ◽  
Chitinase Gene ◽  
Class I ◽  
Specific Class ◽  
Class Iii ◽  
Phytophthora Megasperma ◽  
Class Iii Chitinase ◽  
Chitinase Genes

Expression of eight different chitinase genes, representing members of five chitinase classes, was studied in Medicago truncatula roots during formation of arbuscular mycorrhiza with Glomus intraradices, nodulation with Rhizobium meliloti, and pathogen attack by Phytophthora megasperma f. sp. medicaginis, Fusarium solani f. sp. phaseoli (compatible interactions with root rot symptoms), Ascochyta pisi (compatible, symptomless), and F. solani f. sp. pisi (incompatible, nonhost interaction). In the compatible plant-pathogen interactions, expression of class I, II, and IV chitinase genes was enhanced. The same genes were induced during nodulation. Transcripts of class I and II chitinase genes accumulated transiently during early stages of the interaction, and transcripts of the class IV chitinase gene accumulated in mature nodules. The pattern of chitinase gene expression in mycorrhizal roots was markedly different: Expression of class I, II, and IV chitinase genes was not enhanced, whereas expression of three class III chitinase genes, with almost no basal expression, was strongly induced. Two of these three (Mtchitinase III-2 and Mtchitinase III-3) were not induced at all in interactions with pathogens and rhizobia. Thus, the expression of two mycorrhiza-specific class III chitinase genes can be considered a hallmark for the establishment of arbuscular mycorrhiza in Medicago truncatula.

scholarly journals Arbuscular mycorrhiza in mini-mycorrhizotrons: first contact of Medicago truncatula roots with Glomus intraradices induces chalcone synthase

2001 ◽  
Vol 150 (3) ◽  
pp. 573-582 ◽  
Author(s):  
Athos Bonanomi ◽  
Jürg H. Oetiker ◽  
Richard Guggenheim ◽  
Thomas Boller ◽  
Andres Wiemken ◽  
...  
Keyword(s):  
Arbuscular Mycorrhiza ◽  
Medicago Truncatula ◽  
Glomus Intraradices ◽  
Chalcone Synthase ◽  
First Contact

scholarly journals Arabidopsis NATA1 acetylates putrescine and decreases defense-related hydrogen peroxide accumulation

2016 ◽  
pp. pp.00446.2016 ◽  
Author(s):  
Yann-Ru Lou ◽  
Melike Bor ◽  
Jian Yan ◽  
Aileen S Preuss ◽  
Georg Jander
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrogen Peroxide Accumulation

scholarly journals Roles of intracellular hydrogen peroxide accumulation in abscisic acid signaling in Arabidopsis guard cells

2011 ◽  
Vol 168 (16) ◽  
pp. 1919-1926 ◽  
Author(s):  
Rayhanur Jannat ◽  
Misugi Uraji ◽  
Miho Morofuji ◽  
Mohammad Muzahidul Islam ◽  
Rachel E. Bloom ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Abscisic Acid ◽  
Guard Cells ◽  
Abscisic Acid Signaling ◽  
Hydrogen Peroxide Accumulation ◽  
Intracellular Hydrogen Peroxide
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