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UV and visible light screening by individual sporopollenin exines derived from Lycopodium clavatum (club moss) and Ambrosia trifida (giant ragweed)

UV and visible light screening by individual sporopollenin exines derived from Lycopodium clavatum (club moss) and Ambrosia trifida (giant ragweed)
UV and visible light screening by individual sporopollenin exines derived from Lycopodium clavatum (club moss) and Ambrosia trifida (giant ragweed)
We have investigated the UV–visible light transmission of three types of micrometre-sized sporopollenin exine shells, two derived from Lycopodium clavatum (club moss) spores and one from Ambrosia trifida (giant ragweed) pollen. We have used spectrophotometer measurements of partial monolayers of exines and microscope absorbance imaging to derive the light transmission properties of individual exines. Measurements have been made for exines in air when light transmission losses are due to a combination of absorption, reflection and scattering processes and for exines dispersed in a liquid for which the refractive index (RI) is approximately equal to the RI of the exine such that reflection and scattering effects are negligible. Overall, it found that the light transmission of a single exine wall is approximately 50%. This value of the transmission is due mainly to light absorption, is similar for the three exines studied here and varies only slightly with light wavelength over the range 200–900 nm
sporopollenin, plant spores, pollen, screening, UV–visible light transmission, UV–visible light absorbance
1011-1344
209-217
Atkin, Stephen L.
ba799ad6-092c-4d3f-9685-cc80d0dc606d
Barrier, Sylvain
bb6c4343-e974-4ab0-92b3-5d8188762e01
Cui, Zhenggang
1c9154a3-0021-4b81-8100-98b3511fae27
Fletcher, Paul D.I.
a34b4165-1e93-4661-bd28-71f1fa9b002b
Mackenzie, Grahame
4287c423-8006-4886-a87e-42ec7004610f
Panel, Vincent
449db4e2-a690-410f-96ca-e40418e6062d
Sol, Vincent
38d566a7-9ca4-4729-a700-98b4d5929874
Zhang, Xunli
d7cf1181-3276-4da1-9150-e212b333abb1
Atkin, Stephen L.
ba799ad6-092c-4d3f-9685-cc80d0dc606d
Barrier, Sylvain
bb6c4343-e974-4ab0-92b3-5d8188762e01
Cui, Zhenggang
1c9154a3-0021-4b81-8100-98b3511fae27
Fletcher, Paul D.I.
a34b4165-1e93-4661-bd28-71f1fa9b002b
Mackenzie, Grahame
4287c423-8006-4886-a87e-42ec7004610f
Panel, Vincent
449db4e2-a690-410f-96ca-e40418e6062d
Sol, Vincent
38d566a7-9ca4-4729-a700-98b4d5929874
Zhang, Xunli
d7cf1181-3276-4da1-9150-e212b333abb1

Atkin, Stephen L., Barrier, Sylvain, Cui, Zhenggang, Fletcher, Paul D.I., Mackenzie, Grahame, Panel, Vincent, Sol, Vincent and Zhang, Xunli (2011) UV and visible light screening by individual sporopollenin exines derived from Lycopodium clavatum (club moss) and Ambrosia trifida (giant ragweed). Journal of Photochemistry and Photobiology B: Biology, 102 (3), 209-217. (doi:10.1016/j.jphotobiol.2010.12.005). (PMID:2123297)

Record type: Article

Abstract

We have investigated the UV–visible light transmission of three types of micrometre-sized sporopollenin exine shells, two derived from Lycopodium clavatum (club moss) spores and one from Ambrosia trifida (giant ragweed) pollen. We have used spectrophotometer measurements of partial monolayers of exines and microscope absorbance imaging to derive the light transmission properties of individual exines. Measurements have been made for exines in air when light transmission losses are due to a combination of absorption, reflection and scattering processes and for exines dispersed in a liquid for which the refractive index (RI) is approximately equal to the RI of the exine such that reflection and scattering effects are negligible. Overall, it found that the light transmission of a single exine wall is approximately 50%. This value of the transmission is due mainly to light absorption, is similar for the three exines studied here and varies only slightly with light wavelength over the range 200–900 nm

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More information

Published date: March 2011
Keywords: sporopollenin, plant spores, pollen, screening, UV–visible light transmission, UV–visible light absorbance

Identifiers

Local EPrints ID: 175017
URI: https://eprints.soton.ac.uk/id/eprint/175017
ISSN: 1011-1344
PURE UUID: c70bfcf9-4b85-4622-9387-43c495b31c74
ORCID for Xunli Zhang: ORCID iD orcid.org/0000-0002-4375-1571

Catalogue record

Date deposited: 21 Feb 2011 10:07
Last modified: 22 Sep 2019 00:34

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Contributors

Author: Stephen L. Atkin
Author: Sylvain Barrier
Author: Zhenggang Cui
Author: Paul D.I. Fletcher
Author: Grahame Mackenzie
Author: Vincent Panel
Author: Vincent Sol
Author: Xunli Zhang ORCID iD

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