1999
DOI: 10.1034/j.1399-3054.1999.106409.x
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Autoinhibition of indoleacetic acid transport in the shoots of two‐branched pea (Pisum sativum) plants and its relationship to correlative dominance

Abstract: Two‐branched pea plants (Pisum sativum L. cv. Lisa ZS) with different dominance degrees, obtained by removing the epicotyl shortly after germination, were used to study the interaction between the polar transport of indoleacetic acid (IAA) in both branches of the plants and its relationship to correlative dominance. The dominant shoot had higher transport capacity for C‐IAA applied to the cut stump of one side of the Y‐form explant was used, the stronger the H‐IAA transport was inhibited and the more the trans… Show more

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Cited by 110 publications
(117 citation statements)
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References 32 publications
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“…For example, another important correlation between auxin transport and bud growth is the lack of export of auxin from the inhibited bud. In two-branched pea plants, in which one shoot is inhibited by the other, the subordinate shoot is unable to export IAA unless the dominant shoot is decapitated (Morris, 1977;Li and Bangerth, 1999). This is the "autoinhibition at junctions effect," whereby apically derived auxin may control the export of bud-derived auxin into the stem's polar transport stream (Li and Bangerth, 1999).…”
Section: Auxin Transport Routes and The Regulation Of Bud Outgrowthmentioning
confidence: 99%
“…For example, another important correlation between auxin transport and bud growth is the lack of export of auxin from the inhibited bud. In two-branched pea plants, in which one shoot is inhibited by the other, the subordinate shoot is unable to export IAA unless the dominant shoot is decapitated (Morris, 1977;Li and Bangerth, 1999). This is the "autoinhibition at junctions effect," whereby apically derived auxin may control the export of bud-derived auxin into the stem's polar transport stream (Li and Bangerth, 1999).…”
Section: Auxin Transport Routes and The Regulation Of Bud Outgrowthmentioning
confidence: 99%
“…In the second model, SLs are proposed to act throughout the shoot to trigger clathrin-mediated endocytosis of the PIN1 auxin efflux carrier (Crawford et al, 2010;Shinohara et al, 2013). This hinders the establishment of positive feedback-driven, canalized auxin export from buds into the stem, which has been proposed to be required for the outgrowth of buds (Li and Bangerth, 1999;Prusinkiewicz et al, 2009;Crawford et al, 2010;Shinohara et al, 2013 very likely to act as a SL receptor, since it binds and hydrolyses the synthetic SL analog GR24 and is required for sensitivity to SL (Liu et al, 2009;Hamiaux et al, 2012;Waters et al, 2012;Kagiyama et al, 2013;Zhao et al, 2013;Chevalier et al, 2014). D14 acts in concert with the MAX2 F-box protein, which forms part of an SCFtype ubiquitin ligase complex (Stirnberg et al, 2007;Hamiaux et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…In the second model, SLs are proposed to act throughout the shoot to trigger clathrin-mediated endocytosis of the PIN1 auxin efflux carrier (Crawford et al, 2010;Shinohara et al, 2013). This hinders the establishment of positive feedback-driven, canalized auxin export from buds into the stem, which has been proposed to be required for the outgrowth of buds (Li and Bangerth, 1999;Prusinkiewicz et al, 2009;Crawford et al, 2010;Shinohara et al, 2013). For the other aspects of shoot architecture affected in SL mutants, very little is known about the downstream mechanisms involved.…”
Section: Introductionmentioning
confidence: 99%
“…SLs, when directly applied to buds, can inhibit them (Gomez-Roldan et al, 2008;Brewer et al, 2009), evidence that contributed to the proposal that they may be acting as second messengers for auxin, relaying the inhibitory signal from the stem to buds. Alternatively, it has been proposed that PAT in the main stem can inhibit bud activity through influencing stem sink strength for auxin, thereby affecting the crucial establishment of auxin export from the bud and thus bud activation (Li and Bangerth, 1999;Bennett et al, 2006;Prusinkiewicz et al, 2009;Balla et al, 2011). SL action in this case would be through systemically dampening auxin transport canalization.…”
Section: Salix Spp Bud Response To Strigolactone and Auxinmentioning
confidence: 99%
“…Auxin transport canalization involves an initial flow of auxin from a source to a sink, which both upregulates and polarizes auxin transport in the direction of this initial flow, gradually "canalizing" it into files of cells with high auxin transport capacity toward the sink (Sachs, 1981). This process strongly correlates with bud activation (Morris, 1977;Li and Bangerth, 1999;Prusinkiewicz et al, 2009;Balla et al, 2011).…”
mentioning
confidence: 99%