000 02324nam a2200313Ia 4500
003 MX-MdCICY
005 20250625162411.0
040 _cCICY
090 _aB-18387
245 1 0 _aThe evolutionary origins of auxin transport: what we know and what we need to know.
490 0 _vJournal of Experimental Botany, 71(11), p.3287-3295., 2020
520 3 _aAuxin, represented by indole-3-acetic acid (IAA), has for a long time been studied mainly with respect to the development of land plants, and recent evidence confirms that canonical nuclear auxin signaling is a land plant apomorphy. Increasing sequential and physiological data show that the presence of auxin transport machinery pre-dates the emergence of canonical signaling. In this review, we summarize the present state of knowledge regarding the origins of auxin transport in the green lineage (Viridiplantae), integrating both data from wet lab experiments and sequence evidence on the presence of PIN-FORMED (PIN), PIN-LIKES (PILS), and AUXIN RESISTANT 1/LIKE-AUX1 (AUX1/LAX)homologs. We discuss a high divergence of auxin carrier homologs among algal lineages and emphasize the urgent need for the establishment of good molecular biology models from within the streptophyte green algae. We further postulate and discuss two hypotheses for the ancestral role of auxin in the green lineage. First, auxin was present as a by-product of cell metabolism and the evolution of its transport was stimulated by the need for IAA sequestration and cell detoxification. Second, auxin was primarily a signaling compound, possibly of bacterial origin, and its activity in the pre-plant green algae was a consequence of long-term co-existence with bacteria in shared ecological consortia.
650 1 4 _aALGAE
650 1 4 _aAUX1/LAX
650 1 4 _aAUXIN TRANSPORT
650 1 4 _aEVOLUTION
650 1 4 _aCHLOROPHYTES
650 1 4 _aLAND PLANTS
650 1 4 _aPHYLOGENY
650 1 4 _aPILS
650 1 4 _aPIN-FORMED
650 1 4 _aTREPTOPHYTES
700 1 2 _aVosolsob?, S.
700 1 2 _aSkokan, R.
700 1 2 _aPetrásek, J.
856 4 0 _uhttps://drive.google.com/file/d/17IhJrXYBhk5UWsq_BKajAj6pTvZ2cCzo/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c52539
_d52539