title: Qualitative detection of Mg content in a leaf of Hedera helix by using X-ray radiation from a laser plasma source.
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.
authors.affiliation: Università di L'Aquila, Dipartimento di Biologia di Base ed Applicata, Coppito, L'Aquila, Italy. lucia.reale@gmail.com
authors.forename: Lucia
authors.initials: L
authors.lastname: Reale
authors.forename: Antonia
authors.initials: A
authors.lastname: Lai
authors.forename: Maria
authors.initials: M
authors.lastname: Sighicelli
authors.forename: Anatoly
authors.initials: A
authors.lastname: Faenov
authors.forename: Tatiana
authors.initials: T
authors.lastname: Pikuz
authors.forename: Francesco
authors.initials: F
authors.lastname: Flora
authors.forename: Paola
authors.initials: P
authors.lastname: Zuppella
authors.forename: Tania
authors.initials: T
authors.lastname: Limongi
authors.forename: Libero
authors.initials: L
authors.lastname: Palladino
authors.forename: Anna
authors.initials: A
authors.lastname: Poma
authors.forename: Josef
authors.initials: J
authors.lastname: Kaiser
authors.forename: Michaela
authors.initials: M
authors.lastname: Galiova
authors.forename: Antonella
authors.initials: A
authors.lastname: Balerna
authors.forename: Gianfelice
authors.initials: G
authors.lastname: Cinque
mesh_terms: D035981:Hedera / Q000737:chemistry*; D007834:Lasers; D008274:Magnesium / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry*; D011859:Radiography / Q000379:methods*; D014965:X-Rays
chemical_list: D008274:Magnesium