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Effect of relative air humidity on the stomatal functionality in fully developed leaves

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dc.contributor.authorFanourakis, D.
dc.contributor.authorMatkaris, N.
dc.contributor.authorHeuvelink, E.
dc.contributor.authorCarvalho, S.M.P.
dc.date.accessioned2011-10-23T11:08:28Z
dc.date.available2011-10-23T11:08:28Z
dc.date.issued2010
dc.description.abstractSeveral studies have shown that stomata developed under long-term high relative air humidity (RH ≥85%) are malfunctional, resulting in a poor control of water loss. Yet, little is known about the dynamics of stomatal adaptation to moderate RH, and the possibilities to improve or reverse the destabilized stomatal responsiveness. In this study, a reciprocal transfer experiment was conducted in climate chambers using Rosa hybrida ‘Prophyta’, grown at moderate RH (60%) or at high RH (90%). The adaptation of fully developed leaves to the new RH environment was assessed at day 0, 4, 8 and 12 after plant transfer by measuring the transpiration rate in detached leaves. Stomata fully developed at high RH had a lower closing capacity in response to a decrease in leaf Relative Water Content (RWC) (i.e. water loss was considerably high at RWC below 20%, whereas in moderate RH stomata the water loss almost ceased at 57% RWC). Furthermore, stomata developed at high RH did not become functional after 12 days of cultivation at moderate RH. Similarly, stomata developed at moderate RH and transferred to high RH for a 12 day period did not loose their ability to close in response to desiccation. This indicates that stomatal functionality is determined during leaf development, while after this period stomata have a limited capacity to adapt to new RH environment. It is concluded that stomata from fully developed rose leaves conserve their behaviour independently of the post-development humidity level.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationFANOURAKIS, D....[et al] - Effect of relative air humidity on the stomatal functionality in fully developed leaves. In International Symposium on Rose Research and Cultivation, 5, Gifu, Japan, 24- 28 May, 2009. - Proceedings of the 5th International Symposium on Rose Research and Cultivation . ISHS Acta Horticulturae. ISSN 0567-7572. N.º 870 (2010). p. 83-88por
dc.identifier.eissn2406-6168
dc.identifier.isbn9789066054899
dc.identifier.issn0567-7572
dc.identifier.urihttp://hdl.handle.net/10400.14/6937
dc.identifier.wosWOS:000313618400008
dc.language.isoengpor
dc.peerreviewednopor
dc.publisherInternational Society for Horticultural Science
dc.subjectAdaptation dynamicspor
dc.subjectDesiccationpor
dc.subjectRosa hybridapor
dc.subjectTranspiration ratepor
dc.titleEffect of relative air humidity on the stomatal functionality in fully developed leavespor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceGifu, Japan
oaire.citation.endPage88
oaire.citation.startPage83
oaire.citation.titleActa Horticulturae
oaire.citation.volume870
person.familyNameFanourakis
person.familyNameCarvalho
person.givenNameDimitrios
person.givenNameSusana M.P.
person.identifier194747
person.identifier.ciencia-id5E16-859A-37A4
person.identifier.orcid0000-0002-6319-4223
person.identifier.orcid0000-0001-7157-1079
person.identifier.ridI-7184-2013
person.identifier.scopus-author-id35361862300
person.identifier.scopus-author-id7005619826
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication02a2670a-940c-4ffa-95a4-145941dcd616
relation.isAuthorOfPublicatione52d58d9-9c7d-4a20-afbd-04195a6ab912
relation.isAuthorOfPublication.latestForDiscoverye52d58d9-9c7d-4a20-afbd-04195a6ab912

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