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Qualitative detection of Mg content in a leaf of Hedera helix by using X-ray radiation from a laser plasma source
Authors:
Lucia
Reale
(University of L'Aquila)
,
Paola
Zuppella
(Università di L'Aquila)
,
Maria
Sighicelli
(ENEA)
,
Tatiana
Pikuz
(Japan Atomic Agency (JAEA); Russian Academy of Science)
,
Francesco
Flora
(ENEA)
,
Tania
Limongi
(Università di L'Aquila)
,
Libero
Palladino
(Università di L'Aquila)
,
Anna
Poma
(Università di L'Aquila)
,
Josef
Kaiser
(Brno University of Technology)
,
Michaela
Galiova
(Masaryk University)
,
Antonella
Balerna
(Laboratorio Dafne Luce)
,
Gianfelice
Cinque
(Diamond Light Source)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Microscopy Research And Technique
, VOL 71(6)
, PAGES 459-468
State:
Published (Approved)
Published:
March 2008
Abstract: In this article, a method to reveal the presence of Mg content inside the different parts of leaves of Hedera helix is presented. In fact a sample of a Hedera helix's leaf, commonly characterized by a green and a white side, is analyzed under X-ray radiation. The presence of two zones with different colors in the Hedera helix's leaf has not been explained. In this connection, there are presently three hypotheses to explain the characteristic double-color appearance of the leaf. The first hypothesis suggests a different cytoplasmic inheritance of chloroplasts at the cell division, the second a different allelic composition, homozygote and heterozygote, between the two zones, and finally the third the action of a virus which changes the color properties in the Hedera's leaves. The resulting effect is a different content of “something” between the green and the white side. We utilized X-ray radiation, obtained from a plasma source with a Mg target, to image Hedera helix leaves and we found that the green side of the leaf is highlighted. We may suppose that the reason why the X-rays from a Mg plasma source, allow us to pick up the green side is probably due to the greater presence of the amount of Mg (from chlorophyll or other complexes and/or salts) in the two sides, green and white, of the leaf
Journal Keywords: Muscovite; Aluminoceladonite; Celadonite; White Micas ; Dioctahedral Micas; Xafs; Xanes; Geothermobarometry
Subject Areas:
Biology and Bio-materials
Instruments:
NONE-No attached Diamond beamline
Discipline Tags:
Technical Tags: