Abstract:
:Ethylene response factor 1 (ERF1) is an essential integrator of the jasmonate and ethylene signalling pathways coordinating a large number of genes involved in plant defences. Its orthologue in Hevea brasiliensis, HbERF-IXc5, has been assumed to play a major role in laticifer metabolism and tolerance to harvesting stress for better latex production. This study sets out to establish and characterize rubber transgenic lines overexpressing HbERF-IXc5. Overexpression of HbERF-IXc5 dramatically enhanced plant growth and enabled plants to maintain some ecophysiological parameters in response to abiotic stress such as water deficit, cold and salt treatments. This study revealed that HbERF-IXc5 has rubber-specific functions compared to Arabidopsis ERF1 as transgenic plants overexpressing HbERF-IXc5 accumulated more starch and differentiated more latex cells at the histological level. The role of HbERF-IXc5 in driving the expression of some target genes involved in laticifer differentiation is discussed.
journal_name
Plant Biotechnol Jjournal_title
Plant biotechnology journalauthors
Lestari R,Rio M,Martin F,Leclercq J,Woraathasin N,Roques S,Dessailly F,Clément-Vidal A,Sanier C,Fabre D,Melliti S,Suharsono S,Montoro Pdoi
10.1111/pbi.12774subject
Has Abstractpub_date
2018-01-01 00:00:00pages
322-336issue
1eissn
1467-7644issn
1467-7652journal_volume
16pub_type
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