dc.contributor.author
Myers, Zachary A.
dc.contributor.author
Kumimoto, Roderick W.
dc.contributor.author
Siriwardana, Chamindika L.
dc.contributor.author
Gayler, Krystal K.
dc.contributor.author
Risinger, Jan R.
dc.contributor.author
Pezzetta, Daniela
dc.contributor.author
Holt, Ben F., III
dc.date.accessioned
2018-06-08T11:07:47Z
dc.date.available
2016-12-22T10:37:30.250Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/21671
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-24959
dc.description.abstract
Abstract Recent reports suggest that NF-Y transcription factors are positive
regulators of skotomorphogenesis in Arabidopsis thaliana. Three NF-YC genes
(NF-YC3, NF-YC4, and NF-YC9) are known to have overlapping functions in
photoperiod dependent flowering and previous studies demonstrated that they
interact with basic leucine zipper (bZIP) transcription factors. This included
ELONGATED HYPOCOTYL 5 (HY5), which has well-demonstrated roles in
photomorphogenesis. Similar to hy5 mutants, we report that nf-yc3 nf-yc4 nf-
yc9 triple mutants failed to inhibit hypocotyl elongation in all tested light
wavelengths. Surprisingly, nf-yc3 nf-yc4 nf-yc9 hy5 mutants had synergistic
defects in light perception, suggesting that NF-Ys represent a parallel light
signaling pathway. As with other photomorphogenic transcription factors, nf-
yc3 nf-yc4 nf-yc9 triple mutants also partially suppressed the short hypocotyl
and dwarf rosette phenotypes of CONSTITUTIVE PHOTOMORPHOGENIC 1 (cop1)
mutants. Thus, our data strongly suggest that NF-Y transcription factors have
important roles as positive regulators of photomorphogenesis, and in
conjunction with other recent reports, implies that the NF-Y are multifaceted
regulators of early seedling development. Author Summary Light perception is
critically important for the fitness of plants in both natural and
agricultural settings. Plants not only use light for photosynthesis, but also
as a cue for proper development. As a seedling emerges from soil it must
determine the light environment and adopt an appropriate growth habit. When
blue and red wavelengths are the dominant sources of light, plants will
undergo photomorphogenesis. Photomorphogenesis describes a number of
developmental responses initiated by light in a seedling, and includes
shortened stems and establishing the ability to photosynthesize. The genes
regulating photomorphogenesis have been studied extensively, but a complete
picture remains elusive. Here we describe the finding that NUCLEAR FACTOR-Y
(NF-Y) genes are positive regulators of photomorphogenesis—i.e., in plants
where NF-Y genes are mutated, they display some characteristics of dark grown
plants, even though they are in the light. Our data suggests that the roles of
NF-Y genes in light perception do not fit in easily with those of other
described pathways. Thus, studying these genes promises to help develop a more
complete picture of how light drives plant development.
en
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject.ddc
500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie
dc.title
NUCLEAR FACTOR Y, Subunit C (NF-YC) Transcription Factors Are Positive
Regulators of Photomorphogenesis in Arabidopsis thaliana
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
PLoS Genet. - 12 (2016), 9, Artikel Nr. e1006333
dcterms.bibliographicCitation.doi
10.1371/journal.pgen.1006333
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1371/journal.pgen.1006333
refubium.affiliation
Biologie, Chemie, Pharmazie
de
refubium.mycore.fudocsId
FUDOCS_document_000000026065
refubium.note.author
Der Artikel wurde in einer reinen Open-Access-Zeitschrift publiziert.
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000007460
dcterms.accessRights.openaire
open access