In: FEBS Letters, 2020, vol. 594, no. 23, p. 3986-4000
Post-transcriptional regulation of ATP-binding cassette (ABC) proteins has been so far shown to encompass protein phosphorylation, maturation, and ubiquitination. Yet, recent accumulating evidence implicates FK506-binding proteins (FKBPs), a type of peptidylprolyl cis–trans isomerase (PPIase) proteins, in ABC transporter regulation. In this perspective article, we summarize current knowledge on...
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In: Journal of Biological Chemistry, 2020, vol. 295, no. 37, p. 13094–13105
The plant hormone auxin must be transported throughout plants in a cell-to-cell manner to affect its various physiological functions. ABCB transporters are critical for this polar auxin distribution, but the regulatory mechanisms controlling their function is not fully understood. The auxin transport activity of ABCB1 was suggested to be regulated by a physical interaction with FKBP42/Twisted...
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In: FEBS Letters, 2019, vol. 593, no. 13, p. 1415–1430
In order to survive under ever‐changing conditions plants must be able to adaptively respond to their environment. Plant hormones and the signaling cross‐talk among them play a key role in integrating external and internal cues, enabling the plants to acclimate accordingly. HSP90 and several of its co‐chaperones are known as pleiotropic factors involved in the signaling pathways of...
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In: Frontiers in Plant Science, 2019, vol. 10, p. -
The PDR-type ABCG transporter, ABCG36/PDR8/PEN3, is thought to be implicated in the export of a few structurally unrelated substrates, including the auxin precursor, indole-3-butyric acid (IBA), although a clear-cut proof of transport is lacking. An outward facing, lateral root (LR) location for ABCG36 fuelled speculations that it might secrete IBA into the rhizosphere. Here, we provide...
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In: Journal of Biological Chemistry, 2019, vol. 294, no. 17, p. 6857–6870
Nonhost resistance of Arabidopsis thaliana against Phytophthora infestans, a filamentous eukaryotic microbe and the causal agent of potato late blight, is based on a multilayered defense system. Arabidopsis thaliana controls pathogen entry through the penetration-resistance genes PEN2 and PEN3, encoding an atypical myrosinase and an ABC transporter, respectively, required for synthesis and...
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In: Plant, Cell & Environment, 2019, vol. 42, no. 4, p. 1125–1138
In rice, there are five members of the auxin carrier AUXIN1/LIKE AUX1 family; however, the biological functions of the other four members besides OsAUX1 remain unknown. Here, by using CRISPR/Cas9, we constructed two independent OsAUX3 knock‐down lines, osaux3‐1 and osaux3‐2, in wild‐type rice, Hwayoung (WT/HY) and Dongjin (WT/DJ). osaux3‐1 and osaux3‐2 have shorter primary roots...
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In: Plants, 2018, vol. 7, no. 3, p. 65
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In: Current Opinion in Plant Biology, 2018, vol. 46, p. 104–112
Recently, the plant transport field has shifted their research focus toward a more integrative investigation of transport networks thought to provide the basis for long- range transport routes. Substantial progress was provided by of a series of elegant techniques that allow for a visualization or prediction of substrate movements in plant tissues in contrast to established quantitative...
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In: Nature Communications, 2018, vol. 9, no. 1, p. 4204
Transport of signaling molecules is of major importance for regulating plant growth, development, and responses to the environment. A prime example is the spatial- distribution of auxin, which is regulated via transporters to govern developmental patterning. A critical limitation in our ability to identify transporters by forward genetic screens is their potential functional redundancy. Here,...
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In: BMC Biology, 2017, vol. 15, p. 93
Hormone transporters are crucial for plant hormone action, which is underlined by severe developmental and physiological impacts caused by their loss-of-function mutations. Here, we summarize recent knowledge on the individual roles of plant hormone transporters in local and long-distance transport. Our inventory reveals that many hormones are transported by members of distinct transporter...
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