Abstract
Comparative Genomics and Molecular Characterization of the Maize PIN Family Proteins
Highlights
Among the various aspects of plant physiology that have drawn particular attention in functional and comparative genomics approaches, hormone biosynthetic, and signaling pathways stand out as the most studied, due to their regulatory roles in plant development and growth and biotic/abiotic stress responses (GomezPorras et al, 2007)
Precise regulation of plant development patterning is dependent upon the tight control of auxin repartition at both the tissue and the cellular level, which is ensured by a series of partially redundant transporters whose sub-cellular localization and activity are under constant adjustment
Three protein families have been identified for auxin transport activity: the AUX1 family is involved in the import of indole-3-acetic acid (IAA), and the PIN and ABCB families mainly function as exporters (Paponov et al, 2005; Geisler and Murphy, 2006)
Summary
Among the various aspects of plant physiology that have drawn particular attention in functional and comparative genomics approaches, hormone biosynthetic, and signaling pathways stand out as the most studied, due to their regulatory roles in plant development and growth and biotic/abiotic stress responses (GomezPorras et al, 2007). Precise regulation of plant development patterning is dependent upon the tight control of auxin repartition at both the tissue and the cellular level, which is ensured by a series of partially redundant transporters whose sub-cellular localization and activity are under constant adjustment. Three protein families have been identified for auxin transport activity: the AUX1 family is involved in the import of indole-3-acetic acid (IAA), and the PIN and ABCB families mainly function as exporters (Paponov et al, 2005; Geisler and Murphy, 2006).
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