Cistanthe longiscapa exhibits ecophysiological and molecular adaptations to the arid environments of the Atacama Desert

Simple item page
dc.article.numberkiaf068
dc.catalogadoraba
dc.contributor.authorOssa, Paulina
dc.contributor.authorMoreno, Adrian A.
dc.contributor.authorOrellana, Daniela
dc.contributor.authorToro, Monica
dc.contributor.authorCarrasco Valenzuela, Tomas
dc.contributor.authorRiveros, Anibal
dc.contributor.authorMeneses Araya, Claudio Antonio
dc.contributor.authorNilo Poyanco, Ricardo
dc.contributor.authorOrellana, Ariel
dc.date.accessioned2025-11-20T16:00:54Z
dc.date.available2025-11-20T16:00:54Z
dc.date.issued2025
dc.description.abstractUnderstanding how plants survive extreme conditions is essential to breeding resilient crops. Cistanthe longiscapa, which flourishes in the Atacama Desert, provides a rare glimpse into plant resilience. To uncover the genetic basis of its stress tolerance, we investigated the ecophysiological and transcriptomic responses of C. longiscapa from 3 sites with low but different precipitation levels. Ecophysiological analyses were performed on samples collected in the field at dusk and dawn, which are crucial stages in crassulacean acid metabolism (CAM), a water-efficient type of photosynthesis. Additional transcriptomic analysis allowed us to evaluate CAM intensity in C. longiscapa and identify changes in the molecular signature of these plants. Our results show that C. longiscapa displays considerable ecophysiological trait response variation across the 3 sites, including variations in markers such as nocturnal acid accumulation, isotopic carbon ratio, and succulence, among others. Analysis of gene expression patterns revealed differences among plants exhibiting varying intensities of CAM photosynthesis and identified key molecular signatures associated with their ecological strategies. Additionally, genes related to stress responses, plastid activities, and circadian rhythm show contrasting expression levels between strong and weak CAM plants, and this expression profile is shared with other CAM plants under stress. Our findings demonstrate that C. longiscapa is a valuable resource for identifying genes involved in the transition between different CAM intensities. This may lead to the discovery of genes that enhance plant tolerance to stressful environments., Cistanthe longiscapa exhibits weak or strong CAM photosynthesis under varying aridity levels in the Atacama Desert, which is associated with contrasting gene expression patterns during dawn and dusk.
dc.description.funderCentros de Investigación en Áreas Prioritarias Center for Genome Regulation; Folio: CRG, 15090007
dc.description.funderANID–Millennium Science Initiative Program; Folio: ICN2021_044
dc.description.funderMizutani Foundation for Glycoscience; Folio: 240062
dc.description.funderANID/FONDECYT; Folio: 3510588
dc.description.funderANID/FONDECYT; Folio: 11150107
dc.description.funderANID/FONDECYT; Folio: 111711751200804
dc.description.funderANID/FONDECYT; Folio: 11171175
dc.format.extent17 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1093/plphys/kiaf068
dc.identifier.eissn1532-2548
dc.identifier.issn0032-0889
dc.identifier.scopusidSCOPUS_ID:105003648550
dc.identifier.urihttps://doi.org/10.1093/plphys/kiaf068
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107067
dc.identifier.wosidWOS:001467735800001
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Meneses Araya, Claudio Antonio; S/I; 1246418
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherOXFORD UNIV PRESS INC
dc.revistaPlant Physiology
dc.rightsacceso restringido
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleCistanthe longiscapa exhibits ecophysiological and molecular adaptations to the arid environments of the Atacama Desert
dc.typeartículo
dc.volumen197
sipa.codpersvinculados1246418
sipa.trazabilidadWOS;2025-05-03
Files
Collections
Artículos de revistas