Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/16463
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Morales Iribas, Fermín | - |
dc.contributor.author | Abadía Bayona, Anunciación | - |
dc.contributor.author | Abadía Bayona, Javier | - |
dc.date.accessioned | 2009-08-31T11:39:12Z | - |
dc.date.available | 2009-08-31T11:39:12Z | - |
dc.date.issued | 1990-10 | - |
dc.identifier.citation | Plant Physiology 94(2): 607-613 (1990) | en_US |
dc.identifier.issn | 0032-0889 | - |
dc.identifier.uri | http://hdl.handle.net/10261/16463 | - |
dc.description.abstract | In this work we characterize the changes induced by iron deficiency in the pigment composition of sugar beet (Beta vulgaris L.) leaves. When sugar beet plants were grown hydroponically under limited iron supply, neoxanthin and -carotene decreased concomitantly with chlorophyll a, whereas lutein and the carotenoids within the xanthophyll cycle were less affected. Iron deficiency caused major increases in the lutein/chlorophyll a and xanthophyll cycle pigments/chlorophyll a molar ratios. Xanthophyll cycle carotenoids in Fe-deficient plants underwent epoxidations and de-epoxidations in response to ambient light conditions. In dark adapted Fe-deficient plants most of the xanthophyll cycle pigment pool was in the epoxidated form violaxanthin. We show, both by HPLC and by in vivo 505 nanometers absorbance changes, that in Fe deficient plants and in response to light, the de-epoxidated forms antheraxanthin and zeaxanthin were rapidly formed at the expense of violaxanthin. Several hours after returning to dark, the xanthophyll cycle was shifted again toward violaxanthin. The ratio of variable to maximum chlorophyll fluorescence from intact leaves was decreased by iron deficiency. However, in iron deficient leaves this ratio was little affected by light conditions which displace the xanthophyll cycle toward epoxidation or de-epoxidation. This suggests that the functioning of the xanthophyll cycle is not necessarily linked to protection against excess light input. | en_US |
dc.description.sponsorship | Supported by grants from Dirección General de Investigación Científica y Técnica PB88-0084 and Consejo Asesor de Investigación-Diputación General de Aragón CA 8/88 to J. A. | en_US |
dc.format.extent | 17898 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | American Society of Plant Biologists | en_US |
dc.rights | closedAccess | en_US |
dc.title | Characterization of the Xanthophyll Cycle and Other Photosynthetic Pigment Changes Induced by Iron Deficiency in Sugar Beet (Beta vulgaris L.) | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1104/pp.94.2.607 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://www.plantphysiol.org/cgi/reprint/94/2/607 | en_US |
dc.identifier.e-issn | 1532-2548 | - |
dc.identifier.pmid | 16667755 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
item.languageiso639-1 | en | - |
Aparece en las colecciones: | (EEAD) Artículos |
CORE Recommender
PubMed Central
Citations
12
checked on 20-mar-2024
SCOPUSTM
Citations
100
checked on 18-abr-2024
WEB OF SCIENCETM
Citations
98
checked on 26-feb-2024
Page view(s)
337
checked on 19-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Artículos relacionados:
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.