The Open Bioactive Compounds Journal




ISSN: 1874-8473 ― Volume 7, 2019

Effects of the Allelochemicals Dihydrodiconiferyl Alcohol and Lariciresinol on Metabolism of Lactuca sativa



Petronia Carillo1, *, Concettina Cozzolino1, Brigida D’Abrosca1, Francesco Nacca1, Marina DellaGreca2, Antonio Fiorentino1 , Amodio Fuggi1
1 Dipartimento di Scienze della Vita - Seconda Università di Napoli – via Vivaldi 43, 81100 Caserta, Italy
2 Dipartimento di Chimica Organica e Biochimica, Università Federico II, via Cynthia 4, 80126 Napoli, Italy

Abstract

Dihydridiconiferyl alcohol and lariciresinol, known as phytotoxic lignans, acting on the germination of Lactuca sativa have been tested for lettuce seedling development. It has been evidenced that sucrose grown plants respond to such lignans differently from those grown without sucrose. Dihydridiconiferyl alcohol, which is more active than lariciresinol, reduced chlorophyll and carotenoid synthesis in sucrose grown plants. It also caused a greater decrease of photosystem efficiency, lowering of Yield and non-photochemical quenching in treated plants in respect to those in controls. Both lignans affected carbon and nitrogen metabolism, reducing, in particular, glucose-6-phosphate dehydrogenase (G6PDH) and glutamate synthase (GOGAT) activities in sucrose grown plants. The decrease of G6PDH (-80%) and GOGAT (-65%) activities was correlated to an increase of soluble sugars (up to + 100%) and glutamine (+70%), respectively. This is the first time an allelochemical affecting GOGAT activity has been reported.

Keywords: Lactuca sativa, Lignans, Dihydridiconiferyl alcohol, Lariciresinol, NPQ, G6PDH, GOGAT, Glutamine, Carbohydrates.


Article Information


Identifiers and Pagination:

Year: 2010
Volume: 3
First Page: 18
Last Page: 24
Publisher Id: TOBCJ-3-18
DOI: 10.2174/1874847301003010018

Article History:

Received Date: 31/3/2008
Revision Received Date: 19/8/2008
Acceptance Date: 12/9/2008
Electronic publication date: 20/8/2010
Collection year: 2010

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© Carillo et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the Dipartimento di Scienze della Vita - Seconda Università di Napoli – via Vivaldi 43, 81100 Caserta, Italy; Tel: +39 0823274562; Fax: +39 0823274571; E-mail: petronia.carillo@unina2.it



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