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dc.contributor.author
Marchesini, Victoria Angela
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dc.contributor.author
Guerschman, Juan P.
dc.contributor.author
Schweiggert, Ralf M.
dc.contributor.author
Colmer, Timothy D.
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dc.contributor.author
Veneklaas, Erik J.
dc.date.available
2018-08-15T19:41:25Z
dc.date.issued
2016-10
dc.identifier.citation
Marchesini, Victoria Angela; Guerschman, Juan P.; Schweiggert, Ralf M.; Colmer, Timothy D.; Veneklaas, Erik J.; Spectral detection of stress-related pigments in salt-lake succulent halophytic shrubs; Elsevier; International Journal of Applied Earth Observation and Geoinformational; 52; 10-2016; 457-463
dc.identifier.issn
1569-8432
dc.identifier.uri
http://hdl.handle.net/11336/55734
dc.description.abstract
The spectral detection of vegetation pigment concentrations has a high potential value, but it is still underdeveloped, especially for pigments other than chlorophylls. In this study, the seasonal pigment dynamics of two Tecticornia species (samphires; halophytic shrubs) from north-western Australia were correlated with spectral indices that best document the pigment changes over time. Pigment dynamics were assessed by analysing betacyanin, chlorophyll and carotenoid concentrations at plant level and by measuring reflectance at contrasting seasonal dates. Plant reflectance was used to define a new reflectance index that was most sensitive to the seasonal shifts in Tecticornia pigment concentrations. The two Tecticornia species turned from green to red-pinkish for the period March–August 2012 when betacyanins increased almost nine times in both species. Chlorophyll levels showed the opposite pattern to that of betacyanins, whereas carotenoid levels were relatively stable. Normalised difference indices correlated well with betacyanin (r = 0.805, using bands at 600 and 620 nm) and chlorophyll (r = 0.809, using bands at 737 and 726 nm). Using knowledge of chlorophyll concentrations slightly improved the ability of the spectral index to predict betacyanin concentration (r = 0.822 at bands 606 and 620 nm, in the case of chemically determined chlorophyll, r = 0.809 when using remotely sensed chlorophyll). Our results suggest that this new spectral index can reliably detect changes in betacyanin concentrations in vegetation, with potential applications in ecological studies and environmental impact monitoring.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Betacyanin
dc.subject
Chlorophyll
dc.subject
Halophytes
dc.subject
Inland Marshes
dc.subject
Plant Reflectance
dc.subject
Samphire
dc.subject
Spectral Indices
dc.subject
Tecticornia Auriculata
dc.subject
Tecticornia Indica
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Spectral detection of stress-related pigments in salt-lake succulent halophytic shrubs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-15T14:20:28Z
dc.identifier.eissn
1872-826X
dc.journal.volume
52
dc.journal.pagination
457-463
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Marchesini, Victoria Angela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; Argentina. University of Western Australia; Australia
dc.description.fil
Fil: Guerschman, Juan P.. Csiro Land and Water; Australia
dc.description.fil
Fil: Schweiggert, Ralf M.. Universidad de Hohenheim; Alemania
dc.description.fil
Fil: Colmer, Timothy D.. University of Western Australia; Australia
dc.description.fil
Fil: Veneklaas, Erik J.. University of Western Australia; Australia
dc.journal.title
International Journal of Applied Earth Observation and Geoinformational
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jag.2016.07.002
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S030324341630109X
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