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1. Drought effects on volatile organic compound emissions from Scots pine stems

Author:
Kaisa Rissanen; Juho Aalto; Arthur Gessler; Teemu Hölttä; Andreas Rigling; Marcus Schaub; Jaana Bäck
Source:
Plant, cell and environment 2022 v.45 no.1 pp. 23-40
ISSN:
0140-7791
Subject:
Pinus sylvestris; acetaldehyde; acetone; adsorbents; atmospheric chemistry; drought; environment; forests; irrigation; methanol; monoterpenoids; summer; temperature; trees; volatile organic compounds
Abstract:
... Tree stems have been identified as sources of volatile organic compounds (VOCs) that play important roles in tree defence and atmospheric chemistry. Yet, we lack understanding on the magnitude and environmental drivers of stem VOC emissions in various forest ecosystems. Due to the increasing importance of extreme drought, we studied drought effects on the VOC emissions from mature Scots pine (Pinu ...
DOI:
10.1111/pce.14219

2. Heatwave frequency and seedling death alter stress-specific emissions of volatile organic compounds in Aleppo pine

Author:
Benjamin Birami; Ines Bamberger; Andrea Ghirardo; Rüdiger Grote; Almut Arneth; Elizabeth Gaona-Colmán; Daniel Nadal-Sala; Nadine K. Ruehr
Source:
Oecologia 2021 v.197 no.4 pp. 939-956
ISSN:
0029-8549
Subject:
Pinus halepensis; acetaldehyde; acetone; death; drought; gas exchange; heat stress; methanol; methyl salicylate; monoterpenoids; mortality; plant stress; seedlings; soil water content; temperature; transpiration; volatile organic compounds
Abstract:
... Biogenic volatile organic compounds (BVOC) play important roles in plant stress responses and can serve as stress indicators. While the impacts of gradual environmental changes on BVOCs have been studied extensively, insights in emission responses to repeated stress and recovery are widely absent. Therefore, we studied the dynamics of shoot gas exchange and BVOC emissions in Pinus halepensis seedl ...
DOI:
10.1007/s00442-021-04905-y

3. Differential controls by climate and physiology over the emission rates of biogenic volatile organic compounds from mature trees in a semi-arid pine forest

Author:
Allyson S. D. Eller; Lindsay L. Young; Amy M. Trowbridge; Russell K. Monson
Source:
Oecologia 2016 v.180 no.2 pp. 345-358
ISSN:
0029-8549
Subject:
Pinus ponderosa; acetaldehyde; acetone; carbon dioxide; climate; coniferous forests; drought; emissions; leaves; methanol; monsoon season; photosynthesis; sap flow; stomatal conductance; summer; temperature; trees; volatile organic compounds
Abstract:
... Drought has the potential to influence the emission of biogenic volatile organic compounds (BVOCs) from forests and thus affect the oxidative capacity of the atmosphere. Our understanding of these influences is limited, in part, by a lack of field observations on mature trees and the small number of BVOCs monitored. We studied 50- to 60-year-old Pinus ponderosa trees in a semi-arid forest that exp ...
DOI:
10.1007/s00442-015-3474-4

4. Aldehyde concentrations in wet deposition and river waters

Author:
Agata Dąbrowska; Jacek Nawrocki
Source:
Science of the total environment 2013 v.452-453 pp. 1-9
ISSN:
0048-9697
Subject:
acetone; correlation; rivers; solar radiation; drought; acetaldehyde; ozone; pollutants; river water; wet deposition; surface water; formaldehyde
Abstract:
... The process of pollutants removal from the atmosphere can be responsible for the appearance of aldehydes in surface waters. We observed that formaldehyde, acetaldehyde, propanal, glyoxal, methylglyoxal and acetone were commonly present in precipitations as well as in surface water samples, while semi-volatile and poorly soluble aldehydes as nonanal and decanal were observed seasonally. Particularl ...
DOI:
10.1016/j.scitotenv.2013.02.037
PubMed:
23500393

5. A promising approach to enhance the total phenolic content and antioxidant activity of raw and processed Jatropha curcas L. kernel meal extracts

Author:
Srinivasan Nithiyanantham; Perumal Siddhuraju; George Francis
Source:
Industrial crops and products 2013 v.43 pp. 261-269
ISSN:
0926-6690
Subject:
DNA; EDTA (chelating agent); Jatropha curcas; acetone; antioxidant activity; antioxidants; ascorbic acid; autoclaving; developing countries; drought; functional foods; iron; nitric oxide; seeds; trees
Abstract:
... Jatropha curcas a member of the Euphorbiaceae family is a drought resistant small tree of great economic importance in developing countries because of its several industrial and medicinal values. The antioxidative properties, total phenolic content and DNA protection potential of raw and processed kernel meal extracts of Jatropha were analyzed. The samples were extracted with 70% acetone and used ...
DOI:
10.1016/j.indcrop.2012.07.040

6. Interannual and seasonal changes in the soil exchange rates of monoterpenes and other VOCs in a Mediterranean shrubland

Author:
Asensio, D.; Peñuelas, J.; Prieto, P.; Estiarte, M.; Filella, I.; Llusià, J.
Source:
European journal of soil science 2008 v.59 no.5 pp. 878-891
ISSN:
1351-0754
Subject:
acetaldehyde; acetates; acetic acid; acetone; drought; emissions; foliar uptake; inventories; methanol; monoterpenoids; phenology; roots; seasonal variation; shrublands; soil ecology; soil temperature; soil water; volatile organic compounds
Abstract:
... Information about soil VOC inventories and exchange rates in different soils is very scarce. Seasonality of soil VOC exchange rates is also largely unknown, despite the increasing interest in some soil volatile compounds, such as monoterpenes, because of their important role in soil ecology. We aimed to explore and quantify soil VOC exchange rates in a Mediterranean shrubland and their seasonality ...
DOI:
10.1111/j.1365-2389.2008.01057.x

7. Xylem conduits of a resurrection plant contain a unique lipid lining and refill following a distinct pattern after desiccation

Author:
H.‐J. WAGNER; H. SCHNEIDER; S. MIMIETZ; N. WISTUBA; M. ROKITTA; G. KROHNE; A. HAASE; U. ZIMMERMANN
Source:
new phytologist 2000 v.148 no.2 pp. 239-255
ISSN:
0028-646X
Subject:
Myrothamnus; acetone; air; ambient temperature; benzene; drought; gravity; hydrophobicity; hydrostatic pressure; kinetics; light microscopy; lipids; lungs; raffinose; surfactants; tracheids; transmission electron microscopy; turgor
Abstract:
... The axial and radial refilling with water of cut dry branches (up to 80 cm tall) of the resurrection plant Myrothamnus flabellifolia was studied in both acro‐ and basipetal directions by using ¹H‐NMR imaging. NMR measurements showed that the conducting elements were not filled simultaneously. Axial water ascent occurred initially only in a cluster of a very few conducting elements. Refilling of th ...
DOI:
10.1046/j.1469-8137.2000.00755.x