Leaf level early assessment of ozone injuries by passive fluorescence and photochemical reflectance index.
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| Title: | Leaf level early assessment of ozone injuries by passive fluorescence and photochemical reflectance index. |
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| Authors: | Meroni, M.1 (AUTHOR) michele.meroni@unimib.it, Picchi, V.2 (AUTHOR), Rossini, M.1 (AUTHOR), Cogliati, S.1 (AUTHOR), Panigada, C.1 (AUTHOR), Nali, C.2 (AUTHOR), Lorenzini, G.2 (AUTHOR), Colombo, R.1 (AUTHOR) |
| Source: | International Journal of Remote Sensing. Sep2008, Vol. 29 Issue 17/18, p5409-5422. 14p. 5 Graphs. |
| Subjects: | Energy dissipation, Ozone, Plant physiology, Fluorescence, Xanthophylls, Photochemistry |
| Abstract: | Excess energy dissipation pathways (heat and fluorescence) were monitored, at leaf level as indicators of plant physiological status, with field spectroscopy techniques on poplar clones subjected to ozone fumigation. Measurements of spectral radiance emerging from a leaf provide a fast, non-destructive method for the assessment of excess energy dissipation: xanthophyll-related heat dissipation was estimated with the photochemical reflectance index (PRI) calculated from a traditional field spectrometer, and steady-state fluorescence (Fs) under natural illumination conditions was estimated by exploiting a variation of the Fraunhofer line-depth principle, where the radiance collected with very high resolution spectrometers (FWHM = 0.13 nm) was spectrally modelled. Both remotely-sensed dissipation pathways responded to fumigation. During a 26-day fumigation experiment, four diurnal cycles of spectral measurements were collected in parallel to meteorological and key physiological variables (active fluorescence, net photosynthesis) and leaf sample collection for pigment extraction. We outline evidence of a link between the remotely-sensed Fs and PRI and leaf physiological status. These results open up new possibilities for assessment of plant stress by means of hyperspectral remote sensing. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Remote Sensing is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 34085110 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Leaf level early assessment of ozone injuries by passive fluorescence and photochemical reflectance index. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Meroni%2C+M%2E%22">Meroni, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> michele.meroni@unimib.it</i><br /><searchLink fieldCode="AR" term="%22Picchi%2C+V%2E%22">Picchi, V.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rossini%2C+M%2E%22">Rossini, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cogliati%2C+S%2E%22">Cogliati, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Panigada%2C+C%2E%22">Panigada, C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nali%2C+C%2E%22">Nali, C.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lorenzini%2C+G%2E%22">Lorenzini, G.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Colombo%2C+R%2E%22">Colombo, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Remote+Sensing%22">International Journal of Remote Sensing</searchLink>. Sep2008, Vol. 29 Issue 17/18, p5409-5422. 14p. 5 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Ozone%22">Ozone</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+physiology%22">Plant physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorescence%22">Fluorescence</searchLink><br /><searchLink fieldCode="DE" term="%22Xanthophylls%22">Xanthophylls</searchLink><br /><searchLink fieldCode="DE" term="%22Photochemistry%22">Photochemistry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Excess energy dissipation pathways (heat and fluorescence) were monitored, at leaf level as indicators of plant physiological status, with field spectroscopy techniques on poplar clones subjected to ozone fumigation. Measurements of spectral radiance emerging from a leaf provide a fast, non-destructive method for the assessment of excess energy dissipation: xanthophyll-related heat dissipation was estimated with the photochemical reflectance index (PRI) calculated from a traditional field spectrometer, and steady-state fluorescence (Fs) under natural illumination conditions was estimated by exploiting a variation of the Fraunhofer line-depth principle, where the radiance collected with very high resolution spectrometers (FWHM = 0.13 nm) was spectrally modelled. Both remotely-sensed dissipation pathways responded to fumigation. During a 26-day fumigation experiment, four diurnal cycles of spectral measurements were collected in parallel to meteorological and key physiological variables (active fluorescence, net photosynthesis) and leaf sample collection for pigment extraction. We outline evidence of a link between the remotely-sensed Fs and PRI and leaf physiological status. These results open up new possibilities for assessment of plant stress by means of hyperspectral remote sensing. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Remote Sensing is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/01431160802036292 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 5409 Subjects: – SubjectFull: Energy dissipation Type: general – SubjectFull: Ozone Type: general – SubjectFull: Plant physiology Type: general – SubjectFull: Fluorescence Type: general – SubjectFull: Xanthophylls Type: general – SubjectFull: Photochemistry Type: general Titles: – TitleFull: Leaf level early assessment of ozone injuries by passive fluorescence and photochemical reflectance index. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Meroni, M. – PersonEntity: Name: NameFull: Picchi, V. – PersonEntity: Name: NameFull: Rossini, M. – PersonEntity: Name: NameFull: Cogliati, S. – PersonEntity: Name: NameFull: Panigada, C. – PersonEntity: Name: NameFull: Nali, C. – PersonEntity: Name: NameFull: Lorenzini, G. – PersonEntity: Name: NameFull: Colombo, R. IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 09 Text: Sep2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 01431161 Numbering: – Type: volume Value: 29 – Type: issue Value: 17/18 Titles: – TitleFull: International Journal of Remote Sensing Type: main |
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