Natural allelic variation of the AZI1 gene controls root growth under zinc-limiting condition

Zinc is an essential micronutrient for all living organisms and is involved in a plethora of processes including growth and development, and immunity. However, it is unknown if there is a common genetic and molecular basis underlying multiple facets of zinc function. Here we used natural variation i...

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Bibliographic Details
Published in:PLoS genetics 2018-04, Vol.14 (4), p.e1007304-e1007304
Main Authors: Bouain, Nadia, Satbhai, Santosh B, Korte, Arthur, Saenchai, Chorpet, Desbrosses, Guilhem, Berthomieu, Pierre, Busch, Wolfgang, Rouached, Hatem
Format: Article
Language:English
Subjects:
Alleles
Arabidopsis thaliana
Biology and Life Sciences
Cellular biology
Gene expression
Genetic aspects
Genetic variation
Genetics
Genomes
Health aspects
Immune response
Laboratories
Life Sciences
Mendel, Gregor (1822-84)
Physical Sciences
Physiology
Plant resistance
Plant sciences
Proteins
Research and Analysis Methods
Rice
Studies
Vegetal Biology
Zinc
Zinc (Nutrient)
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Summary:Zinc is an essential micronutrient for all living organisms and is involved in a plethora of processes including growth and development, and immunity. However, it is unknown if there is a common genetic and molecular basis underlying multiple facets of zinc function. Here we used natural variation in Arabidopsis thaliana to study the role of zinc in regulating growth. We identify allelic variation of the systemic immunity gene AZI1 as a key for determining root growth responses to low zinc conditions. We further demonstrate that this gene is important for modulating primary root length depending on the zinc and defence status. Finally, we show that the interaction of the immunity signal azelaic acid and zinc level to regulate root growth is conserved in rice. This work demonstrates that there is a common genetic and molecular basis for multiple zinc dependent processes and that nutrient cues can determine the balance of growth and immune responses in plants.
ISSN:1553-7404
1553-7390
1553-7404
DOI:10.1371/journal.pgen.1007304