Regulation of MIR Genes in Response to Abiotic Stress in Hevea brasiliensis

Gebelin Virginie, Leclercq Julie, Hu Songnian, Tang Chaorong, Montoro Pascal. 2013. Regulation of MIR Genes in Response to Abiotic Stress in Hevea brasiliensis. International Journal of Molecular Sciences, 14 (10) : 19587-19604.

https://doi.org/10.3390/ijms141019587

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Quartile : Q2, Sujet : CHEMISTRY, MULTIDISCIPLINARY

Résumé : Increasing demand for natural rubber (NR) calls for an increase in latex yield and also an extension of rubber plantations in marginal zones. Both harvesting and abiotic stresses lead to tapping panel dryness through the production of reactive oxygen species. Many microRNAs regulated during abiotic stress modulate growth and development. The objective of this paper was to study the regulation of microRNAs in response to different types of abiotic stress and hormone treatments in Hevea. Regulation of MIR genes differs depending on the tissue and abiotic stress applied. A negative co-regulation between HbMIR398b with its chloroplastic HbCuZnSOD target messenger is observed in response to salinity. The involvement of MIR gene regulation during latex harvesting and tapping panel dryness (TPD) occurrence is further discussed.

Mots-clés Agrovoc : Hevea brasiliensis, expression des gènes, arn, régulation physiologique, stress, oxydation, hormone, latex, perte à la récolte

Classification Agris : F30 - Génétique et amélioration des plantes
F60 - Physiologie et biochimie végétale
H50 - Troubles divers des plantes

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

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