ArticlePlant molecular biology2004
Different subcellular localization and trafficking properties of KNOX class 1 homeodomain proteins from rice.
Article in Plant molecular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 27 citations in OpenAlex.
- Rewiring of a KNOXI regulatory network mediated by UFO underlies the compound leaf development in Medicago truncatula.Nature communications · 2024Article
- Overexpression ofPlant signaling & behavior · 2022Article
- BdERECTA controls vasculature patterning and phloem-xylem organization in Brachypodium distachyon.BMC plant biology · 2021Article
- Biolistic Approach for Transient Gene Expression Studies in Plants.Methods in molecular biology (Clifton, N.J.) · 2020Review
- Article
- Interaction between the GROWTH-REGULATING FACTOR and KNOTTED1-LIKE HOMEOBOX families of transcription factors.Plant physiology · 2014Article
- Functions of the CCCH type zinc finger protein OsGZF1 in regulation of the seed storage protein GluB-1 from rice.Plant molecular biology · 2014Article
- Salicylic acid suppresses jasmonic acid signaling downstream of SCFCOI1-JAZ by targeting GCC promoter motifs via transcription factor ORA59.The Plant cell · 2013Article
- Three non-autonomous signals collaborate for nuclear targeting of CrMYC2, a Catharanthus roseus bHLH transcription factor.BMC research notes · 2010Article
- MPB2C, a microtubule-associated protein, regulates non-cell-autonomy of the homeodomain protein KNOTTED1.The Plant cell · 2007Article
- Combining experimental and predicted datasets for determination of the subcellular location of proteins in Arabidopsis.Plant physiology · 2005Article
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Authors and funding
7 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Genes of the KN1-like homeobox (KNOX) class 1 encode transcription factors involved in shoot apical meristem development and maintenance. We studied the subcellular localization of Green Fluorescent Protein-tagged rice KNOX proteins (Oskn1-3) after particle bombardment of onion and rice cells and after transformation of Arabidopsis and rice with constitutive and inducible expression constructs. In all test systems, the three rice KNOX proteins showed nuclear and cytoplasmic localization patterns. However, Oskn1 additionally showed in some cells a distribution over punctae moving randomly in the cytosol. Use of an inducible expression system indicated a nuclear presence of Oskn1 in cells of the shoot apical meristem and post-transcriptional down-regulation in early leaf primordia. Arabidopsis and rice test systems were used to study effects of plant hormones and auxin transport inhibition on KNOX protein localization. Application of GA3 or 1-NAA shifted protein localization completely to the cytoplasm and resulted in loss of the punctae formed by Oskn1. Conversely, NPA application induced a complete nuclear localization of the KNOX proteins. To study intercellular movement of the KNOX proteins we set up a novel co-bombardment assay in which trafficking of untagged KNOX proteins was visualized through the co-trafficking of green fluorescent or blue fluorescent marker proteins. In multiple independent experiments Oskn1 trafficked more extensively to neighboring cells than Oskn2 and Oskn3. Differences in the localization and trafficking properties of Oskn1, Oskn2 and Oskn3 correlate with differences in mRNA localization patterns and functional differences between the rice KNOX genes and their putative orthologues from other species.
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