MADS-box and bHLH transcription factors coordinate transmitting tract development in arabidopsis thaliana
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European Commission's projectSexSeed - Sexual Plant Reproduction – Seed formation (EC-H2020-690946)
The MADS-domain transcription factor SEEDSTICK (STK) controls several aspects of plant reproduction. STK is co-expressed with CESTA (CES), a basic Helix-Loop-Helix (bHLH) transcription factor-encoding gene. CES was reported to control redundantly with the brassinosteroid positive signaling factors BRASSINOSTEROID ENHANCED EXPRESSION1 (BEE1) and BEE3 the development of the transmitting tract. Combining the stk ces-4 mutants led to a reduction in ovule fertilization due to a defect in carpel fusion which, caused the formation of holes at the center of the septum where the transmitting tract differentiates. Combining the stk mutant with the bee1 bee3 ces-4 triple mutant showed an increased number of unfertilized ovules and septum defects.
CitationDi Marzo, M. [et al.]. MADS-box and bHLH transcription factors coordinate transmitting tract development in arabidopsis thaliana. "Frontiers in Plant Science", 1 Gener 2020, vol. 11, núm. 526, p. 1-16.