Environmental Stress and Role of Arbuscular Mycorrhizal Symbiosis

2011 ◽  
pp. 197-214 ◽  
Author(s):  
Anna Fusconi ◽  
Graziella Berta
Keyword(s):  
Environmental Stress ◽  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis

scholarly journals Phosphate Import at the Arbuscule: Just a Nutrient?

2011 ◽  
Vol 24 (11) ◽  
pp. 1296-1299 ◽  
Author(s):  
Shu-Yi Yang ◽  
Uta Paszkowski
Keyword(s):  
Plant Growth ◽  
Phosphate Uptake ◽  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Phosphate Ion ◽  
Cortex Cell

Central to the mutualistic arbuscular mycorrhizal symbiosis is the arbuscule, the site where symbiotic phosphate is delivered. Initial investigations in legumes have led to the exciting observation that symbiotic phosphate uptake not only enhances plant growth but also regulates arbuscule dynamics and is, furthermore, required for maintenance of the symbiosis. This review evaluates the possible role of the phosphate ion, not only as a nutrient but also as a signal that is necessary for reprogramming the host cortex cell for symbiosis.

scholarly journals Partner communication and role of nutrients in the arbuscular mycorrhizal symbiosis

2018 ◽  
Vol 220 (4) ◽  
pp. 1031-1046 ◽  
Author(s):  
Luisa Lanfranco ◽  
Valentina Fiorilli ◽  
Caroline Gutjahr
Keyword(s):  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Partner Communication

Auxin‐mediated regulation of arbuscular mycorrhizal symbiosis: A role of SlGH3.4 in tomato

2021 ◽  
Author(s):  
Xiao Chen ◽  
Jiadong Chen ◽  
Dehua Liao ◽  
Hanghang Ye ◽  
Cai Li ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis

Role of arbuscular mycorrhizal symbiosis in root mineral uptake under CaCO3 stress

Mycorrhiza ◽  
2011 ◽  
Vol 22 (5) ◽  
pp. 337-345 ◽  
Author(s):  
Sonia Labidi ◽  
Fayçal Ben Jeddi ◽  
Benoit Tisserant ◽  
Djouher Debiane ◽  
Salah Rezgui ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Mineral Uptake

scholarly journals The Lotus japonicus ROP3 Is Involved in the Establishment of the Nitrogen-Fixing Symbiosis but Not of the Arbuscular Mycorrhizal Symbiosis

2021 ◽  
Vol 12 ◽  
Author(s):  
Ivette García-Soto ◽  
Raphael Boussageon ◽  
Yareni Marlene Cruz-Farfán ◽  
Jesus Daniel Castro-Chilpa ◽  
Liz Xochiquetzal Hernández-Cerezo ◽  
...  
Keyword(s):  
Root Colonization ◽  
Lotus Japonicus ◽  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Nitrogen Fixing ◽  
Infection Threads ◽  
Root Symbioses ◽  
Specific Pathway

Legumes form root mutualistic symbioses with some soil microbes promoting their growth, rhizobia, and arbuscular mycorrhizal fungi (AMF). A conserved set of plant proteins rules the transduction of symbiotic signals from rhizobia and AMF in a so-called common symbiotic signaling pathway (CSSP). Despite considerable efforts and advances over the past 20 years, there are still key elements to be discovered about the establishment of these root symbioses. Rhizobia and AMF root colonization are possible after a deep cell reorganization. In the interaction between the model legume Lotus japonicus and Mesorhizobium loti, this reorganization has been shown to be dependent on a SCAR/Wave-like signaling module, including Rho-GTPase (ROP in plants). Here, we studied the potential role of ROP3 in the nitrogen-fixing symbiosis (NFS) as well as in the arbuscular mycorrhizal symbiosis (AMS). We performed a detailed phenotypic study on the effects of the loss of a single ROP on the establishment of both root symbioses. Moreover, we evaluated the expression of key genes related to CSSP and to the rhizobial-specific pathway. Under our experimental conditions, rop3 mutant showed less nodule formation at 7- and 21-days post inoculation as well as less microcolonies and a higher frequency of epidermal infection threads. However, AMF root colonization was not affected. These results suggest a role of ROP3 as a positive regulator of infection thread formation and nodulation in L. japonicus. In addition, CSSP gene expression was neither affected in NFS nor in AMS condition in rop3 mutant. whereas the expression level of some genes belonging to the rhizobial-specific pathway, like RACK1, decreased in the NFS. In conclusion, ROP3 appears to be involved in the NFS, but is neither required for intra-radical growth of AMF nor arbuscule formation.

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