Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous Abstract"Habitat complexity reduces parasitoid foraging efficiency, but does not prevent orientation towards learned host plant odours"    Next AbstractAir quality and its possible impacts on the terrestrial ecosystems of the North American Great Plains: an overview »

J Agric Food Chem


Title:"Atmospheric carbon dioxide changes photochemical activity, soluble sugars and volatile levels in broccoli (Brassica oleracea var. italica)"
Author(s):Krumbein A; Klaring HP; Schonhof I; Schreiner M;
Address:"Leibniz-Institute of Vegetable and Ornamental Crops Grossbeeren/Erfurt e.V., Theodor-Echtermeyer-Weg 1, Grossbeeren, Germany. Krumbein@igzev.de"
Journal Title:J Agric Food Chem
Year:2010
Volume:58
Issue:6
Page Number:3747 - 3752
DOI: 10.1021/jf903280w
ISSN/ISBN:1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:"Atmospheric carbon dioxide (CO(2)) concentration is an environmental factor currently undergoing dramatic changes. The objective of the present study was to determine the effect of doubling the ambient CO(2) concentration on plant photochemistry as measured by photochemical quenching coefficient (qP), soluble sugars and volatiles in broccoli. Elevated CO(2) concentration increased qP values in leaves by up to 100% and 89% in heads, while glucose and sucrose in leaves increased by about 60%. Furthermore, in broccoli heads elevated CO(2) concentration induced approximately a 2-fold increase in concentrations of three fatty acid-derived C(7) aldehydes ((E)-2-heptenal, (E,Z)-2,4-heptadienal, (E,E)-2,4-heptadienal), two fatty acid-derived C(5) alcohols (1-penten-3-ol, (Z)-2-pentenol), and two amino acid-derived nitriles (phenyl propanenitrile, 3-methyl butanenitrile). In contrast, concentrations of the sulfur-containing compound 2-ethylthiophene and C(6) alcohol (E)-2-hexenol decreased. Finally, elevated CO(2) concentration increased soluble sugar concentrations due to enhanced photochemical activity in leaves and heads, which may account for the increased synthesis of volatiles"
Keywords:Brassica/*chemistry/metabolism/radiation effects Carbohydrates/*chemistry Carbon Dioxide/analysis/*metabolism Photochemical Processes Solubility Volatile Organic Compounds/*analysis/metabolism;
Notes:"MedlineKrumbein, Angelika Klaring, Hans-Peter Schonhof, Ilona Schreiner, Monika eng 2010/02/18 J Agric Food Chem. 2010 Mar 24; 58(6):3747-52. doi: 10.1021/jf903280w"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 22-11-2024