Growth and aluminum tolerance of maize roots mediated by auxin- and cytokinin-producing Bacillus toyonensis requires polar auxin transport
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00525604" target="_blank" >RIV/61389030:_____/20:00525604 - isvavai.cz</a>
Result on the web
<a href="http://doi.org/10.1016/j.envexpbot.2020.104064" target="_blank" >http://doi.org/10.1016/j.envexpbot.2020.104064</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.envexpbot.2020.104064" target="_blank" >10.1016/j.envexpbot.2020.104064</a>
Alternative languages
Result language
angličtina
Original language name
Growth and aluminum tolerance of maize roots mediated by auxin- and cytokinin-producing Bacillus toyonensis requires polar auxin transport
Original language description
Plant Growth Promotion Rhizobacteria (PGPR) control plant development by modulation of their phytohormone activities. To probe how PGPR trigger plant growth and mitigate stress induced by aluminum (Al), the beneficial effect of Bacillus toyonensis strain Bt04 (Bt04), isolated from the Algerian Sahara rhizosphere, on maize roots was assessed. Our results revealed that the strain Bt04 is producing indole-3-acetic acid (IAA) both endogenously and from tryptophan (Trp). Surprisingly, the production of another endogenous auxin, a non-indole phenylacetic acid (PAA), was found at higher concentrations than IAA. Additionally, the production of cytokinins (CKs) by Bt04 has been demonstrated. Inoculation with Bt04 resulted in a promotion of maize growth and an enhancement of root development under aluminium (Al) toxicity condition. Importantly, Bt04 reduced Al accumulation in the young maize roots. Moreover, we could demonstrate that Bt04 itself exhibits tolerance to high concentrations of AlCl3. Bt04 might exert its growth promoting effect partially by increasing protection against oxidative stress since bacterial treatment reduced lipid peroxidation in maize seedlings under Al toxicity. To investigate a possible mechanism of this growth induction of maize seedlings we treated them under control and stress conditions with auxin transport inhibitors and demonstrated that the auxin transport pathway is needed for the Al induced stress response after inoculation with the PGPR.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental and Experimental Botany
ISSN
0098-8472
e-ISSN
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Volume of the periodical
176
Issue of the periodical within the volume
AUG
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
104064
UT code for WoS article
000539157000012
EID of the result in the Scopus database
2-s2.0-85083777402