| 80 matches found in 35 documents. Search time: 0.054 seconds. |
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Score: 10.00 |
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| Title: Expression of a rice homeobox gene causes altered morphology of transgenic plants .
| | Author: Matsuoka M Ichikawa H Saito A Tada Y Fujimura T Kano-Murakami Y | | Journal: Plant Cell Citation: V : 5 ( 9 ) P : 1039-48 Year: 1993 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub8104574 Accession (PMID): 8104574 | Matching Sentences:
[ Sen. 2, subscore: 3.00 ]: DNA sequence analysis of this clone , which was designated as Oryza sativa homeobox 1 ( OSH1 ) , and a genomic clone encoding the OSH1 sequence have shown that the OSH1 gene consists of five exons and encodes a polypeptide of 361 amino acid residues .
[ Sen. 4, subscore: 2.00 ]: Introduction of the cloned OSH1 gene into rice resulted in altered leaf morphology , which was similar to that of the maize morphological mutant Knotted-1 ( Kn1 ) , indicating that OSH1 is a rice gene homologous to the maize Kn1 gene .
[ Sen. 12, subscore: 2.00 ]: These findings indicate that the abnormal morphologies of the transgenic plants are caused by the expression of the OSH1 gene product and , therefore , that OSH1 is related to the plant development process .
[ Sen. 3, subscore: 1.00 ]: Restriction fragment length polymorphism analysis has shown that OSH1 is a single-copy gene located near the phytochrome gene on chromosome 3 .
[ Sen. 7, subscore: 1.00 ]: To elucidate the biological function of the OSH1 gene product , the coding region was introduced into Arabidopsis under the control of the cauliflower mosaic virus 35S promoter .
[ Sen. 11, subscore: 1.00 ]: The abnormal phenotypes were inherited , and the level of expression of the introduced OSH1 correlates with the severity of the phenotype .
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Score: 9.00 |
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| Title: Isolation and characterization of a rice homebox gene , OSH15 .
| | Author: Sato Y Sentoku N Nagato Y Matsuoka M | | Journal: Plant Mol . Biol . Citation: V : 38 ( 6 ) P : 983-98 Year: 1998 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub9869405 Accession (PMID): 9869405 | Matching Sentences:
[ Sen. 3, subscore: 2.00 ]: Transgenic tobacco plants overexpressing the OSH15 cDNA showed a dramatically altered morphological phenotype caused by disturbance of specific aspects of tobacco development , thereby indicating the involvement of OSH15 in plant development .
[ Sen. 4, subscore: 2.00 ]: We analyzed the in situ mRNA localization of OSH15 through the whole plant life cycle , comparing the expression pattern with that of another rice homeobox gene , OSH1 .
[ Sen. 7, subscore: 2.00 ]: Whereas the expression of OSH1 continued within the shoot apical meristem , OSH15 expression within the shoot apical meristem ceased but became observable in a ring shaped pattern at the boundaries of some embryonic organs .
[ Sen. 9, subscore: 2.00 ]: RNA in situ localization data suggest that OSH15 may play roles in the shoot organization during early embryogenesis and thereafter , OSH15 may be involved in morphogenetic events around the shoot apical meristem .
[ Sen. 2, subscore: 1.00 ]: We isolated and characterized a cDNA designated OSH15 ( Oryza sativa homeobox 15 ) that encodes a KNOTTED-type homeodomain protein .
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Score: 8.00 |
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| Title: Positive Autoregulation of a KNOX Gene Is Essential for Shoot Apical Meristem Maintenance in Rice .
| | Author: Tsuda K Ito Y Sato Y Kurata N | | Journal: Plant Cell Citation: V : P : Year: 2011 Type: Publisher | | Literature: oryza Field: abstract Doc ID: pub22207572 Accession (PMID): 22207572 | Matching Sentences:
[ Sen. 8, subscore: 4.00 ]: We demonstrate that OSH1 directly binds to five KNOX loci , including OSH1 and OSH15 , through evolutionarily conserved cis-elements and that the positive autoregulation of OSH1 is indispensable for its own expression and SAM maintenance .
[ Sen. 6, subscore: 2.00 ]: Double mutants of osh1 and d6 , a loss-of-function mutant of OSH15 , fail to establish the SAM both in embryogenesis and regeneration .
[ Sen. 4, subscore: 1.00 ]: Here , we show that expression of a rice ( Oryza sativa ) KNOX gene , Oryza sativa homeobox1 ( OSH1 ) , is positively regulated by direct autoregulation .
[ Sen. 5, subscore: 1.00 ]: Interestingly , loss-of-function mutants of OSH1 lose the SAM just after germination but can be rescued to grow until reproductive development when they are regenerated from callus .
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Score: 7.00 |
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| Title: A rice homeobox gene , OSH1 , is expressed before organ differentiation in a specific region during early embryogenesis .
| | Author: Sato Y Hong SK Tagiri A Kitano H Yamamoto N Nagato Y Matsuoka M | | Journal: Proc . Natl . Acad . Sci . USA Citation: V : 93 ( 15 ) P : 8117-22 Year: 1996 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub8755613 Accession (PMID): 8755613 | Matching Sentences:
[ Sen. 3, subscore: 1.00 ]: Here we described the temporal and spatial expression patterns of a rice homeobox gene , OSH1 , during rice embryogenesis .
[ Sen. 4, subscore: 1.00 ]: In situ hybridization analysis revealed that in the wild-type embryo , OSH1 was first expressed at the globular stage , much earlier than organogenesis started , in a ventral region where shoot apical meristem and epiblast would later develop .
[ Sen. 5, subscore: 1.00 ]: This localized expression of OSH1 indicates that the cellular differentiation has already occurred at this stage .
[ Sen. 6, subscore: 1.00 ]: At later stages after organogenesis had initiated , OSH1 expression was observed in shoot apical meristem [ except in the L1 ( tunica ) layer ] , epiblast , radicle , and their intervening it issues in descending strength of expression level with embryonic maturation .
[ Sen. 8, subscore: 1.00 ]: In the orl1 embryo , the expression pattern of OSH1 was the same as that in the wild-type embryo in spite of the lack of embryonic organs .
[ Sen. 9, subscore: 1.00 ]: This shows that OSH1 is not directly associated with organ differentiation , but may be related to a regulatory process before or independent of the organ determination .
[ Sen. 10, subscore: 1.00 ]: The results described here strongly suggest that , like animal homeobox genes , OSH1 plays an important role in regionalization of cell identity during early embryogenesis .
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Score: 6.00 |
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| Title: A rice homeotic gene , OSH1 , causes unusual phenotypes in transgenic tobacco | | Author: Kano-Murakami Y Yanai T Tagiri A Matsuoka M | | Journal: FEBS Lett .
Citation: V : 334 ( 3 ) P : 365-8 Year: 1993 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub7902297 Accession (PMID): 7902297 | Matching Sentences:
[ Sen. 3, subscore: 2.00 ]: Expression of the OSH1 cDNA in tobacco induced morphological abnormalities in the leaves , petals and stems of the transformants suggesting that OSH1 functions as a morphological regulator .
[ Sen. 1, subscore: 1.00 ]: A rice gene , OSH1 , which shares homology with animal homeobox genes , has been isolated .
[ Sen. 2, subscore: 1.00 ]: We have introduced the OSH1 cDNA into tobacco in order to examine its function .
[ Sen. 4, subscore: 1.00 ]: OSH1 cDNA expression was analyzed under the control of three different promoters .
[ Sen. 5, subscore: 1.00 ]: This work revealed that not only the level of OSH1 expression but also the site and timing of the expression affect the morphology of the plant .
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Score: 6.00 |
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| Title: Decreased GA1 content caused by the overexpression of OSH1 is accompanied by suppression of GA 20-oxidase gene expression .
| | Author: Kusaba S Fukumoto M Honda C Yamaguchi I Sakamoto T Kano-Murakami Y | | Journal: Plant Physiol .
Citation: V : 117 ( 4 ) P : 1179-84 Year: 1998 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub9701574 Accession (PMID): 9701574 | Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: We previously reported that overexpression of the rice homeobox gene OSH1 led to altered morphology and hormone levels in transgenic tobacco ( Nicotiana tabacum L ) plants .
[ Sen. 3, subscore: 1.00 ]: Here we report the results of our analysis on the regulatory mechanism ( s ) of OSH1 on GA metabolism .
[ Sen. 4, subscore: 1.00 ]: GA53 and GA20 , precursors of GA1 , were applied separately to transgenic tobacco plants exhibiting severely changed morphology due to overexpression of OSH1 .
[ Sen. 6, subscore: 1.00 ]: The internal GA1 and GA20 contents in OSH1-transformed tobacco were dramatically reduced compared with those of wild-type plants , whereas the level of GA19 , a mid-product of GA 20-oxidase , was 25% of the wild-type level .
[ Sen. 8, subscore: 1.00 ]: RNA-blot analysis revealed that GA 20-oxidase gene expression was suppressed in stem it issue of OSH1-transformed tobacco plants .
[ Sen. 9, subscore: 1.00 ]: Based on these results , we conclude that overexpression of OSH1 causes a reduction of the level of GA1 by suppressing GA 20-oxidase expression .
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Score: 5.00 |
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| Title: Loss-of-function mutations in the rice homeobox gene OSH15 affect the architecture of internodes resulting in dwarf plants .
| | Author: Sato Y Sentoku N Miura Y Hirochika H Kitano H Matsuoka M | | Journal: EMBO J Citation: V : 18 ( 4 ) P : 992-1002 Year: 1999 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub10022841 Accession (PMID): 10022841 | Matching Sentences:
[ Sen. 5, subscore: 2.00 ]: Introduction of a 14 kbp genomic DNA fragment that includes all exons , introns and 5- and 3- flanking sequences of OSH15 complemented the defects in internode elongation , confirming that they were caused by the loss-of-function of OSH15 .
[ Sen. 1, subscore: 1.00 ]: The rice homeobox gene OSH15 ( Oryza sativa homeobox ) is a member of the knotted1-type homeobox gene family .
[ Sen. 2, subscore: 1.00 ]: We report here on the identification and characterization of a loss-of-function mutation in OSH15 from a library of retrotransposon-tagged lines of rice .
[ Sen. 7, subscore: 1.00 ]: These mutations demonstrate a role for OSH15 in the development of rice internodes .
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Score: 5.00 |
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| Title: Initiation of shoot apical meristem in rice : characterization of four SHOOTLESS genes .
| | Author: Satoh N Hong SK Nishimura A Matsuoka M Kitano H Nagato Y | | Journal: Development Citation: V : 126 ( 16 ) P : 3629-36 Year: 1999 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub10409508 Accession (PMID): 10409508 | Matching Sentences:
[ Sen. 9, subscore: 3.00 ]: An in situ hybridization experiment using a rice homeobox gene , OSH1 , as a probe revealed that shl1 and shl2 modified the expression domain of OSH1 , but normal expression of OSH1 was observed in shl3 and shl4 embryos .
[ Sen. 10, subscore: 2.00 ]: Accordingly , SHL1 and SHL2 function upstream of OSH1 , and SHL3 and SHL4 downstream or independently of OSH1 .
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Score: 4.00 |
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| Title: KNOX homeobox genes are sufficient in maintaining cultured cells in an undifferentiated state in rice .
| | Author: Ito Y Eiguchi M Kurata N | | Journal: Genesis Citation: V : 30 ( 4 ) P : 231-8 Year: 2001 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11536429 Accession (PMID): 11536429 | Matching Sentences:
[ Sen. 1, subscore: 3.00 ]: We produced transgenic rice calli , which constitutively express each of four KNOX family class 1 homeobox genes of rice , OSH1 , OSH16 , OSH15 , and OSH71 , and found that constitutive and ectopic expression of such genes inhibits normal regeneration from transformed calli , which showed continuous growth around their shoot-regenerating stages .
[ Sen. 3, subscore: 1.00 ]: In the normal shoot-regeneration process of calli , expression of endogenous OSH1 was restricted in presumptive shoot-regenerating regions of calli and not observed in other areas .
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Score: 4.00 |
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| Title: Abnormal cell divisions in leaf primordia caused by the expression of the rice homeobox gene OSH1 lead to altered morphology of leaves in transgenic tobacco | | Author: Sato Y Tamaoki M Murakami T Yamamoto N Kano-Murakami Y Matsuoka M | | Journal: Mol . Gen . Genet . Citation: V : 251 ( 1 ) P : 13-22 Year: 1996 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub8628242 Accession (PMID): 8628242 | Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: Transgenic tobacco plants were generated carrying a rice homeobox gene , OSH1 , controlled by the promoter of a gene encoding a tobacco pathogenesis-related protein ( PR1a ) .
[ Sen. 6, subscore: 1.00 ]: Thus , OSH1 expression in mature leaves is not necessary for abnormal leaf development .
[ Sen. 8, subscore: 1.00 ]: Therefore , the aberrant morphological features are an indirect consequence of ectopic OSH1 gene expression .
[ Sen. 11, subscore: 1.00 ]: The OSH1 product appears to affect the mechanism controlling the orientation of the plane of cell division , resulting in abnormal periclinal division of mesophyll cell , which in turn results in the gross morphological abnormalities observed in the transgenic lines .
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Score: 4.00 |
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| Title: Alteration of hormone levels in transgenic tobacco plants overexpressing the rice homeobox gene OSH1 .
| | Author: Kusaba S Kano-Murakami Y Matsuoka M Tamaoki M Sakamoto T Yamaguchi I Fukumoto M | | Journal: Plant Physiol .
Citation: V : 116 ( 2 ) P : 471-6 Year: 1998 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub9489007 Accession (PMID): 9489007 | Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: The rice ( Oryza sativa L ) homeobox gene OSH1 causes morphological alterations when ectopically expressed in transgenic rice , Arabidopsis thaliana , and tobacco ( Nicotiana tabacum L ) and is therefore believed to function as a morphological regulator gene .
[ Sen. 2, subscore: 1.00 ]: To determine the relationship between OSH1 expression and morphological alterations , we analyzed the changes in hormone levels in transgenic tobacco plants exhibiting abnormal morphology .
[ Sen. 3, subscore: 1.00 ]: Levels of the plant hormones indole-3-acetic acid , abscisic acid , gibberellin ( GA ) , and cytokinin ( zeatin and trans-zeatin [ Z ] ) were measured in leaves of OSH1-transformed and wild-type tobacco Altered plant morphology was found to correlate with changes in hormone levels .
[ Sen. 9, subscore: 1.00 ]: Based on these data , we propose the hypothesis that OSH1 affects plant hormone metabolism either directly or indirectly and thereby causes changes in plant development .
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Score: 3.00 |
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| Title: Characterization of the KNOX class homeobox genes Oskn2 and Oskn3 identified in a collection of cDNA libraries covering the early stages of rice embryogenesis .
| | Author: Postma-Haarsma AD Verwoert II Stronk OP Koster J Lamers GE Hoge JH Meijer AH .
| | Journal: Plant Mol . Biol . Citation: V : 39 ( 2 ) P : 257-71 Year: 1999 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub10080693 Accession (PMID): 10080693 | Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: Two of these , Oskn2 and Oskn3 , encode newly described KNOX genes , whereas the third ( Oskn1 ) corresponds to the previously described OSH1 gene .
[ Sen. 6, subscore: 1.00 ]: Whereas OSH1 was previously proposed to function also in SAM maintenance , Oskn3 may be involved in patterning organ positions , as its expression was found to mark the boundaries of different embryonic organs following SAM formation .
[ Sen. 8, subscore: 1.00 ]: Transgenic expression of Oskn2 and Oskn3 in tobacco further supported their involvement in cell fate determination , like previously reported for Knotted1 and OSH1 ectopic expression .
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Score: 3.00 |
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| Title: Functional analysis of the conserved domains of a rice KNOX homeodomain protein , OSH15 .
| | Author: Nagasaki H Sakamoto T Sato Y Matsuoka M | | Journal: Plant Cell Citation: V : 13 ( 9 ) P : 2085-98 Year: 2001 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11549765 Accession (PMID): 11549765 | Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: The rice KNOX protein OSH15 consists of four conserved domains : the MEINOX domain , which can be divided into two subdomains ( KNOX1 and KNOX2 ) ; the GSE domain ; the ELK domain ; and the homeodomain ( HD ) .
[ Sen. 4, subscore: 1.00 ]: We also found that both KNOX2 and HD are necessary for homodimerization and that only HD is needed for binding of OSH15 to its target sequence .
[ Sen. 6, subscore: 1.00 ]: On the basis of these findings , we propose that overproduced OSH15 probably acts as a dimer and may ectopically suppress the expression of target genes that induce abnormal morphology in transgenic plants .
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Score: 3.00 |
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| Title: Members of TALE and WUS subfamilies of homeodomain proteins with potentially important functions in development form dimers within each subfamily in rice .
| | Author: Nagasaki H Matsuoka M Sato Y | | Journal: Genes Genet .
Syst Citation: V : 80 ( 4 ) P : 261-7 Year: 2005 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub16284419 Accession (PMID): 16284419 | Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: The genes OsWUS and OsPRS , which encode atypical homeodomain proteins from the WUS subfamily , and OsBEL and OSH15 , which encode those from the TALE subfamily , were isolated from rice and tested for their interactions by yeast two-hybrid analysis .
[ Sen. 5, subscore: 1.00 ]: OsWUS and OsPRS formed homodimers and formed heterodimers with each other but did not form dimers with the TALE family homeodomain proteins OSH15 or OsBEL .
[ Sen. 6, subscore: 1.00 ]: Likewise , OSH15 and OsBEL formed homodimers and heterodimers but did not form dimers with the WUS family homeodomain proteins OsWUS and OsPRS .
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Score: 2.00 |
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| Title: Rice globular embryo 4 ( gle4 ) mutant is defective in radial pattern formation during embryogenesis .
| | Author: Kamiya N Nishimura A Sentoku N Takabe E Nagato Y Kitano H Matsuoka M | | Journal: Plant Cell Physiol .
Citation: V : 44 ( 9 ) P : 875-83 Year: 2003 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub14519768 Accession (PMID): 14519768 | Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: We developed two markers specifically staining the L2 and L3 layers ( OsSCR and OsPNH1 , respectively ) and characterized the gle mutants by using these markers in addition to the already developed markers Roc1 ( marker for the L1 layer ) , Ramy1A ( marker of the L1 layer of the epithelium ) , and OSH1 ( marker of the apical region ) .
[ Sen. 5, subscore: 1.00 ]: One of the gle mutants , gle4 , expressed Roc1 and Ramy1A at the normal positions , but other markers exhibited an abnormal expression pattern ; that is , both OsPNH1 and OsSCR were expressed in the central region of the embryo and OSH1 expression was not observed .
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Score: 1.00 |
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| Title: Shoot organization genes regulate shoot apical meristem organization and the pattern of leaf primordium initiation in rice .
| | Author: Itoh JI Kitano H Matsuoka M Nagato Y | | Journal: Plant Cell Citation: V : 12 ( 11 ) P : 2161-74 Year: 2000 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11090216 Accession (PMID): 11090216 | Matching Sentences:
[ Sen. 6, subscore: 1.00 ]: Rapid and random leaf production in sho mutants is correlated with the frequent and disorganized cell divisions in the shoot meristem and with a reduction of expression domain of a rice homeobox gene , OSH1 .
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Score: 1.00 |
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| Title: The LAX1 and FRIZZY PANICLE 2 genes determine the inflorescence architecture of rice by controlling rachis-branch and spikelet development .
| | Author: Komatsu M Maekawa M Shimamoto K Kyozuka J | | Journal: Dev . Biol . Citation: V : 231 ( 2 ) P : 364-73 Year: 2001 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11237465 Accession (PMID): 11237465 | Matching Sentences:
[ Sen. 3, subscore: 1.00 ]: In situ hybridization analysis using OSH1 , a rice knotted1 ( kn1 ) ortholog , confirmed the absence of lateral meristems in lax1-2 panicles .
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Score: 1.00 |
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| Title: The SHOOTLESS2 and SHOOTLESS1 genes are involved in both initiation and maintenance of the shoot apical meristem through regulating the number of indeterminate cells .
| | Author: Satoh N Itoh J Nagato Y | | Journal: Genetics Citation: V : 164 ( 1 ) P : 335-46 Year: 2003 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub12750344 Accession (PMID): 12750344 | Matching Sentences:
[ Sen. 8, subscore: 1.00 ]: In shl2 mutants , there was a positive correlation between the size of the expression domain of OSH1 representing the number of indeterminate cells , the frequency of shoot meristem initiation , and the duration of meristem survival Thus the shoot meristem will not initiate in an "all-or-nothing" fashion , but is formed in various degrees depending on the strength of the alleles .
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Score: 1.00 |
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| Title: The gene FLORAL ORGAN NUMBER1 regulates floral meristem size in rice and encodes a leucine-rich repeat receptor kinase orthologous to Arabidopsis CLAVATA1 .
| | Author: Suzaki T Sato M Ashikari M Miyoshi M Nagato Y Hirano HY .
| | Journal: Development Citation: V : 131 ( 22 ) P : 5649-57 Year: 2004 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub15509765 Accession (PMID): 15509765 | Matching Sentences:
[ Sen. 6, subscore: 1.00 ]: Consistent with this result , OSH1 , a molecular marker of meristematic indeterminate cells in rice , continues to be expressed in this region .
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Score: 1.00 |
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| Title: Gypsy embryo specifies ovule curvature by regulating ovule/integument development in rice .
| | Author: Yamaki S Satoh H Nagato Y | | Journal: Planta Citation: V : 222 ( 3 ) P : 408-17 Year: 2005 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub16001259 Accession (PMID): 16001259 | Matching Sentences:
[ Sen. 6, subscore: 1.00 ]: The expression patterns of OSH1 and OsMADS13 indicated that , in gym , a small number of indeterminate cells are maintained on the style side of the ovule and then in the integument primordium at a low frequency .
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