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dc.contributor.author
Wang, Fang
dc.contributor.author
Robson, T. Matthew
dc.contributor.author
Casal, Jorge José
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dc.contributor.author
Shapiguzov, Alexey
dc.contributor.author
Aphalo, Pedro J.
dc.date.available
2023-01-09T17:15:47Z
dc.date.issued
2020-02
dc.identifier.citation
Wang, Fang; Robson, T. Matthew; Casal, Jorge José; Shapiguzov, Alexey; Aphalo, Pedro J.; Contributions of cryptochromes and phototropins to stomatal opening through the day; Csiro Publishing; Functional Plant Biology; 47; 3; 2-2020; 226-238
dc.identifier.issn
1445-4408
dc.identifier.uri
http://hdl.handle.net/11336/183960
dc.description.abstract
The UV-A/blue photoreceptors phototropins and cryptochromes are both known to contribute to stomatal opening (Δgs) in blue light. However, their relative contributions to the maintenance of gs in blue light through the whole photoperiod remain unknown. To elucidate this question, Arabidopsis phot1 phot2 and cry1 cry2 mutants (MTs) and their respective wild types (WTs) were irradiated with 200 μmol m-2 s-1 of blue-, green- or red-light (BL, GL or RL) throughout a 11-h photoperiod. Stomatal conductance (gs) was higher under BL than under RL or GL. Under RL, gs was not affected by either of the photoreceptor mutations, but under GL gs was slightly lower in cry1 cry2 than its WT. Under BL, the presence of phototropins was essential for rapid stomatal opening at the beginning of the photoperiod, and maximal stomatal opening beyond 3 h of irradiation required both phototropins and cryptochromes. Time courses of whole-plant net carbon assimilation rate (Anet) and the effective quantum yield of PSII photochemistry (ΦPSII) were consistent with an Anet-independent contribution of BL on gs both in phot1 phot2 and cry1 cry2 mutants. The changing roles of phototropins and cryptochromes through the day may allow more flexible coordination between gs and Anet.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Csiro Publishing
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARABIDOPSIS THALIANA
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BLUE LIGHT
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DIURNAL PATTERN
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GAS EXCHANGE
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GREEN LIGHT
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PHOTOSYNTHESIS
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RED LIGHT
dc.subject
STOMATA
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Contributions of cryptochromes and phototropins to stomatal opening through the day
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T15:21:05Z
dc.journal.volume
47
dc.journal.number
3
dc.journal.pagination
226-238
dc.journal.pais
Australia
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dc.description.fil
Fil: Wang, Fang. University of Helsinki; Finlandia
dc.description.fil
Fil: Robson, T. Matthew. University of Helsinki; Finlandia
dc.description.fil
Fil: Casal, Jorge José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.description.fil
Fil: Shapiguzov, Alexey. University of Helsinki; Finlandia
dc.description.fil
Fil: Aphalo, Pedro J.. University of Helsinki; Finlandia
dc.journal.title
Functional Plant Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/?paper=FP19053
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1071/FP19053
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