Function of B - BOX proteins under shade
Plants are capable of perceiving changes in the light environment and finely adjust their growth and development. Reductions of red to far-red ratio [R:FR] generated by an increase of the plant canopy above the plant are sensed by the phytochrome system triggering the shade-avoidance syndrome [SAS] that includes elongation of vegetative structures, reduction of branching and acceleration of flowering. Albeit the SAS is a strategy of major adaptative significance in plant communities, involving massive changes in gene expression, our knowledge of the SAS signaling network is still fragmented. By a selection and characterization of a T-DNA mutant with a long hypocotyl under shade, we identified BBX21, a protein with two B-box domains involved in the SAS. BBX21 belongs to a small eight member family of B-box containing proteins with both opposite and additive functions in the SAS signaling. BBX21 down-regulates the gene expression of auxin, brassinosteroid and ethylene signaling pathway components under shade. Furthermore BBX21 is a transcription factor that interacts genetically with COP1. We propose a model in which a dynamic balance of positive and negative B-box transcriptional regulators acts as a gas-and-brake mechanism into the COP1 signaling to regulate the expression of SAS.
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KOHA-OAI-AGRO:46525 |
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koha |
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KOHA-OAI-AGRO:465252023-09-18T12:10:43Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46525http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGFunction of B - BOX proteins under shadeCrocco, Carlos DanielHolm, MagnusYanovsky, Marcelo J.Botto, Javier Franciscotextengapplication/pdfPlants are capable of perceiving changes in the light environment and finely adjust their growth and development. Reductions of red to far-red ratio [R:FR] generated by an increase of the plant canopy above the plant are sensed by the phytochrome system triggering the shade-avoidance syndrome [SAS] that includes elongation of vegetative structures, reduction of branching and acceleration of flowering. Albeit the SAS is a strategy of major adaptative significance in plant communities, involving massive changes in gene expression, our knowledge of the SAS signaling network is still fragmented. By a selection and characterization of a T-DNA mutant with a long hypocotyl under shade, we identified BBX21, a protein with two B-box domains involved in the SAS. BBX21 belongs to a small eight member family of B-box containing proteins with both opposite and additive functions in the SAS signaling. BBX21 down-regulates the gene expression of auxin, brassinosteroid and ethylene signaling pathway components under shade. Furthermore BBX21 is a transcription factor that interacts genetically with COP1. We propose a model in which a dynamic balance of positive and negative B-box transcriptional regulators acts as a gas-and-brake mechanism into the COP1 signaling to regulate the expression of SAS.Plants are capable of perceiving changes in the light environment and finely adjust their growth and development. Reductions of red to far-red ratio [R:FR] generated by an increase of the plant canopy above the plant are sensed by the phytochrome system triggering the shade-avoidance syndrome [SAS] that includes elongation of vegetative structures, reduction of branching and acceleration of flowering. Albeit the SAS is a strategy of major adaptative significance in plant communities, involving massive changes in gene expression, our knowledge of the SAS signaling network is still fragmented. By a selection and characterization of a T-DNA mutant with a long hypocotyl under shade, we identified BBX21, a protein with two B-box domains involved in the SAS. BBX21 belongs to a small eight member family of B-box containing proteins with both opposite and additive functions in the SAS signaling. BBX21 down-regulates the gene expression of auxin, brassinosteroid and ethylene signaling pathway components under shade. Furthermore BBX21 is a transcription factor that interacts genetically with COP1. We propose a model in which a dynamic balance of positive and negative B-box transcriptional regulators acts as a gas-and-brake mechanism into the COP1 signaling to regulate the expression of SAS.BRASSINOLIDECHOLESTANOLETHYLENEETHYLENE DERIVATIVEHETEROCYCLIC STEROIDINDOLEACETIC ACID DERIVATIVEVEGETABLE PROTEINCHEMISTRYDARKNESSDOWN REGULATIONGENE EXPRESSION REGULATIONGENETICSGROWTH, DEVELOPMENT AND AGINGMETABOLISMPHENOTYPEPLANTPROTEIN TERTIARY STRUCTURESIGNAL TRANSDUCTIONCHOLESTANOLSDOWN-REGULATIONETHYLENESINDOLEACETIC ACIDSPLANT PROTEINSPLANTSPROTEIN STRUCTURE, TERTIARYSTEROIDS, HETEROCYCLICPlant signaling and behavior |
| institution |
UBA FA |
| collection |
Koha |
| country |
Argentina |
| countrycode |
AR |
| component |
Bibliográfico |
| access |
En linea En linea |
| databasecode |
cat-ceiba |
| tag |
biblioteca |
| region |
America del Sur |
| libraryname |
Biblioteca Central FAUBA |
| language |
eng |
| topic |
BRASSINOLIDE CHOLESTANOL ETHYLENE ETHYLENE DERIVATIVE HETEROCYCLIC STEROID INDOLEACETIC ACID DERIVATIVE VEGETABLE PROTEIN CHEMISTRY DARKNESS DOWN REGULATION GENE EXPRESSION REGULATION GENETICS GROWTH, DEVELOPMENT AND AGING METABOLISM PHENOTYPE PLANT PROTEIN TERTIARY STRUCTURE SIGNAL TRANSDUCTION CHOLESTANOLS DOWN-REGULATION ETHYLENES INDOLEACETIC ACIDS PLANT PROTEINS PLANTS PROTEIN STRUCTURE, TERTIARY STEROIDS, HETEROCYCLIC BRASSINOLIDE CHOLESTANOL ETHYLENE ETHYLENE DERIVATIVE HETEROCYCLIC STEROID INDOLEACETIC ACID DERIVATIVE VEGETABLE PROTEIN CHEMISTRY DARKNESS DOWN REGULATION GENE EXPRESSION REGULATION GENETICS GROWTH, DEVELOPMENT AND AGING METABOLISM PHENOTYPE PLANT PROTEIN TERTIARY STRUCTURE SIGNAL TRANSDUCTION CHOLESTANOLS DOWN-REGULATION ETHYLENES INDOLEACETIC ACIDS PLANT PROTEINS PLANTS PROTEIN STRUCTURE, TERTIARY STEROIDS, HETEROCYCLIC |
| spellingShingle |
BRASSINOLIDE CHOLESTANOL ETHYLENE ETHYLENE DERIVATIVE HETEROCYCLIC STEROID INDOLEACETIC ACID DERIVATIVE VEGETABLE PROTEIN CHEMISTRY DARKNESS DOWN REGULATION GENE EXPRESSION REGULATION GENETICS GROWTH, DEVELOPMENT AND AGING METABOLISM PHENOTYPE PLANT PROTEIN TERTIARY STRUCTURE SIGNAL TRANSDUCTION CHOLESTANOLS DOWN-REGULATION ETHYLENES INDOLEACETIC ACIDS PLANT PROTEINS PLANTS PROTEIN STRUCTURE, TERTIARY STEROIDS, HETEROCYCLIC BRASSINOLIDE CHOLESTANOL ETHYLENE ETHYLENE DERIVATIVE HETEROCYCLIC STEROID INDOLEACETIC ACID DERIVATIVE VEGETABLE PROTEIN CHEMISTRY DARKNESS DOWN REGULATION GENE EXPRESSION REGULATION GENETICS GROWTH, DEVELOPMENT AND AGING METABOLISM PHENOTYPE PLANT PROTEIN TERTIARY STRUCTURE SIGNAL TRANSDUCTION CHOLESTANOLS DOWN-REGULATION ETHYLENES INDOLEACETIC ACIDS PLANT PROTEINS PLANTS PROTEIN STRUCTURE, TERTIARY STEROIDS, HETEROCYCLIC Crocco, Carlos Daniel Holm, Magnus Yanovsky, Marcelo J. Botto, Javier Francisco Function of B - BOX proteins under shade |
| description |
Plants are capable of perceiving changes in the light environment and finely adjust their growth and development. Reductions of red to far-red ratio [R:FR] generated by an increase of the plant canopy above the plant are sensed by the phytochrome system triggering the shade-avoidance syndrome [SAS] that includes elongation of vegetative structures, reduction of branching and acceleration of flowering. Albeit the SAS is a strategy of major adaptative significance in plant communities, involving massive changes in gene expression, our knowledge of the SAS signaling network is still fragmented. By a selection and characterization of a T-DNA mutant with a long hypocotyl under shade, we identified BBX21, a protein with two B-box domains involved in the SAS. BBX21 belongs to a small eight member family of B-box containing proteins with both opposite and additive functions in the SAS signaling. BBX21 down-regulates the gene expression of auxin, brassinosteroid and ethylene signaling pathway components under shade. Furthermore BBX21 is a transcription factor that interacts genetically with COP1. We propose a model in which a dynamic balance of positive and negative B-box transcriptional regulators acts as a gas-and-brake mechanism into the COP1 signaling to regulate the expression of SAS. |
| format |
Texto |
| topic_facet |
BRASSINOLIDE CHOLESTANOL ETHYLENE ETHYLENE DERIVATIVE HETEROCYCLIC STEROID INDOLEACETIC ACID DERIVATIVE VEGETABLE PROTEIN CHEMISTRY DARKNESS DOWN REGULATION GENE EXPRESSION REGULATION GENETICS GROWTH, DEVELOPMENT AND AGING METABOLISM PHENOTYPE PLANT PROTEIN TERTIARY STRUCTURE SIGNAL TRANSDUCTION CHOLESTANOLS DOWN-REGULATION ETHYLENES INDOLEACETIC ACIDS PLANT PROTEINS PLANTS PROTEIN STRUCTURE, TERTIARY STEROIDS, HETEROCYCLIC |
| author |
Crocco, Carlos Daniel Holm, Magnus Yanovsky, Marcelo J. Botto, Javier Francisco |
| author_facet |
Crocco, Carlos Daniel Holm, Magnus Yanovsky, Marcelo J. Botto, Javier Francisco |
| author_sort |
Crocco, Carlos Daniel |
| title |
Function of B - BOX proteins under shade |
| title_short |
Function of B - BOX proteins under shade |
| title_full |
Function of B - BOX proteins under shade |
| title_fullStr |
Function of B - BOX proteins under shade |
| title_full_unstemmed |
Function of B - BOX proteins under shade |
| title_sort |
function of b - box proteins under shade |
| url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46525 http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= |
| work_keys_str_mv |
AT croccocarlosdaniel functionofbboxproteinsundershade AT holmmagnus functionofbboxproteinsundershade AT yanovskymarceloj functionofbboxproteinsundershade AT bottojavierfrancisco functionofbboxproteinsundershade |
| _version_ |
1777661061004001280 |