Requirement of <i>MIR165A</i> primary transcript sequence for its activity pattern in Arabidopsis leaf primordia

Tatematsu, Kiyoshi; Toyokura, Koichi; Okada, Kiyotaka

doi:10.1080/15592324.2015.1055432

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The same miRNA may have the multiple functions in different tissues. For example, miR165/ miR166 is also related to leaf polarization in addition to xylem and cell arrangement as mentioned in a previous section (Tatematsu et al, 2015;Manuela and Xu, 2020).…”

Section: Other Processes Involving Mirnasmentioning

confidence: 84%

microRNAs and Their Roles in Plant Development

Dong

Zhang

2022

Front. Plant Sci.

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Small RNAs are short non-coding RNAs with a length ranging between 20 and 24 nucleotides. Of these, microRNAs (miRNAs) play a distinct role in plant development. miRNAs control target gene expression at the post-transcriptional level, either through direct cleavage or inhibition of translation. miRNAs participate in nearly all the developmental processes in plants, such as juvenile-to-adult transition, shoot apical meristem development, leaf morphogenesis, floral organ formation, and flowering time determination. This review summarizes the research progress in miRNA-mediated gene regulation and its role in plant development, to provide the basis for further in-depth exploration regarding the function of miRNAs and the elucidation of the molecular mechanism underlying the interaction of miRNAs and other pathways.

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Section: Other Processes Involving Mirnasmentioning

confidence: 84%

microRNAs and Their Roles in Plant Development

Dong

Zhang

2022

Front. Plant Sci.

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“…Mature miR165 is detected in the abaxial epidermis and one to two cell layers underneath the epidermis (Kidner and Martienssen, 2004), suggesting that miR165 and possibly also miR166 migrate to neighboring cells and create an miR165/166 gradient. Consistent with this, confocal analysis on PHB-GFP protein showed that it is not evenly distributed in the adaxial domain of leaves (Miyashima et al, 2011;Tatematsu et al, 2015). A pair of artificially designed versions of miR165 and PHB were used to analyze their interaction.…”

Section: Regulation Of Hd-zip Iiis By Mir165/166mentioning

confidence: 63%

“…A mutated form of PHB (PHBm, which does not respond to endogenous miR165/166) was expressed in most of the leaf primordia. Introducing a mutated form of miR165 (miR165mu) complementary to PHBm gradually repressed the PHBm protein in the abaxial cells of leaves, indicating non-cell-autonomous function of endogenous miR165/166 (Miyashima et al, 2011;Tatematsu et al, 2015).…”

Section: Regulation Of Hd-zip Iiis By Mir165/166mentioning

confidence: 99%

Patterning a Leaf by Establishing Polarities

Manuela

2020

Front. Plant Sci.

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Leaves are the major organ for photosynthesis in most land plants, and leaf structure is optimized for the maximum capture of sunlight and gas exchange. Three polarity axes, the adaxial-abaxial axis, the proximal-distal axis, and the medial-lateral axis are established during leaf development to give rise to a flattened lamina with a large area for photosynthesis and blades that are extended on petioles for maximum sunlight. Adaxial cells are elongated, tightly packed cells with many chloroplasts, and their fate is specified by HD-ZIP III and related factors. Abaxial cells are rounder and loosely packed cells and their fate is established and maintained by YABBY family and KANADI family proteins. The activities of adaxial and abaxial regulators are coordinated by ASYMMETRIC LEAVES2 and auxin. Establishment of the proximodistal axis involves the BTB/POZ domain proteins BLADE-ON-PETIOLE1 and 2, whereas homeobox genes PRESSED FLOWER and WUSCHEL-RELATED HOMEOBOX1 mediate leaf development along the mediolateral axis. This review summarizes recent advances in leaf polarity establishment with a focus on the regulatory networks involved.

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