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Unravelling the diversity in water usage among wild banana species in response to vapour pressure deficit

dc.contributor.authorEyland, D.
dc.contributor.authorGambart, C.
dc.contributor.authorSwennen, R.
dc.contributor.authorCarpentier, S.C.
dc.date.accessioned2023-10-11T16:50:03Z
dc.date.available2023-10-11T16:50:03Z
dc.date.issued2023-08-21
dc.identifier.citationEyland, D., Gambart, C., Swennen, R. & Carpentier, S.C. (2023). Unravelling the diversity in water usage among wild banana species in response to vapour pressure deficit. Frontiers in Plant Science, 14: 1068191, 1-13.
dc.identifier.issn1664-462X
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8278
dc.description.abstractThe rise in global temperature is not only affecting plant functioning directly, but is also increasing air vapour pressure deficit (VPD). The yield of banana is heavily affected by water deficit but so far breeding programs have never addressed the issue of water deficit caused by high VPD. A reduction in transpiration at high VPD has been suggested as a key drought tolerance breeding trait to avoid excessive water loss, hydraulic failure and to increase water use efficiency. In this study, stomatal and transpiration responses under increasing VPD at the leaf and whole-plant level of 8 wild banana (sub)species were evaluated, displaying significant differences in stomatal reactivity. Three different phenotypic groups were identified under increasing VPD. While (sub)species of group III maintained high transpiration rates under increasing VPD, M. acuminata ssp. errans (group I), M. acuminata ssp. zebrina (group II) and M. balbisiana (group II) showed the highest transpiration rate limitations to increasing VPD. In contrast to group I, group II only showed strong reductions at high VPD levels, limiting the cost of reduced photosynthesis and strongly increasing their water use efficiency. M. acuminata ssp. zebrina and M. balbisiana thus show the most favourable responses. This study provides a basis for the identification of potential parent material in gene banks for breeding future-proof bananas that cope better with lack of water.
dc.description.sponsorshipGovernment of Norway
dc.description.sponsorshipGlobal Trust
dc.format.extent1-13
dc.language.isoen
dc.subjectDrought Tolerance
dc.subjectStomatal Conductance
dc.subjectTranspiration
dc.subjectVapour Pressure Deficit
dc.subjectWater Use Efficiency
dc.subjectBananas
dc.subjectBreeding
dc.titleUnravelling the diversity in water usage among wild banana species in response to vapour pressure deficit
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationKatholieke Universiteit Leuven
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationBioversity International
cg.coverage.regionAsia
cg.coverage.regionEast Asia
cg.coverage.regionSoutheast Asia
cg.coverage.countryJapan
cg.coverage.countryMalaysia
cg.coverage.countryPapua New Guinea
cg.coverage.hubEastern Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidEYLAND:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectBanana
cg.iitasubjectClimate Change
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectValue Chains
cg.journalFrontiers in Plant Science
cg.notesOpen Access Journal; Published online: 21 Aug 2023
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.3389/fpls.2023.1068191
cg.iitaauthor.identifierRony Swennen: 0000-0002-5258-9043
cg.futureupdate.requiredNo
cg.identifier.issue1068191
cg.identifier.volume14


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