Role of polyamines in plant growth regulation of Rht wheat mutants
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F19%3A00503808" target="_blank" >RIV/61389030:_____/19:00503808 - isvavai.cz</a>
Result on the web
<a href="http://doi.org/10.1016/j.plaphy.2019.02.013" target="_blank" >http://doi.org/10.1016/j.plaphy.2019.02.013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.plaphy.2019.02.013" target="_blank" >10.1016/j.plaphy.2019.02.013</a>
Alternative languages
Result language
angličtina
Original language name
Role of polyamines in plant growth regulation of Rht wheat mutants
Original language description
Besides their protective role, polyamines also serve as signalling molecules. However, further studies are needed to elucidate the polyamine signalling pathways, especially to identify polyamine-regulated mechanisms and their connections with other regulatory molecules. Reduced height (Rht) genes in wheat are often used in breeding programs to increase harvest index. Some of these genes are encoding DELLA proteins playing role in gibberellic acid signalling. The aim of the present paper was to reveal how the mutations in Rht gene modify the polyamine-regulated processes in wheat. Wild type and two Rht mutant genotypes (Rht 1: semi-dwarf- Rht 3: dwarf mutants) were treated with polyamines. Polyamine treatments differently influenced the polyamine metabolism, the plant growth parameters and certain hormone levels (salicylic acid and abscisic acid) in these genotypes. The observed distinct metabolism of Rht 3 may more likely reflect more intensive polyamine exodus from putrescine to spermidine and spermine, and the catabolism of the higher polyamines. The lower root to shoot translocation of putrescine can contribute to the regulation of polyamine pool, which in turn may be responsible for the observed lack of growth inhibition in Rht 3 after spermidine and spermine treatments. Lower accumulation of salicylic acid and abscisic acid, plant hormones usually linked with growth inhibition, in leaves may also be responsible for the diminished negative effect of higher polyamines on the shoot growth parameters observed in Rht 3. These results provide an insight into the role of polyamines in plant growth regulation based on the investigation of gibberellin-insensitive Rht mutants.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Physiology and Biochemistry
ISSN
0981-9428
e-ISSN
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Volume of the periodical
137
Issue of the periodical within the volume
APR
Country of publishing house
FR - FRANCE
Number of pages
14
Pages from-to
189-202
UT code for WoS article
000462106100019
EID of the result in the Scopus database
2-s2.0-85061783787