Environmental factors affecting the lipid metabolism in Rosmarinus officinalis L

Maffei, Massimo E.; Mucciarelli, Marco; Scannerini, Silvano

doi:10.1016/0305-1978(93)90089-a

Cited by 55 publications

(32 citation statements)

References 39 publications

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“…A shift towards lower chain lengths within different component classes was sometimes found (Shepherd and Griffiths, 2006). Thus, a positive correlation of long-chain odd n-alkanes with temperature was observed (Maffei et al, 1993;Zhang et al, 2004). Also, the abundance of membrane fatty acids with 16 and 18 carbons can change as a result of temperature (Maffei et al, 1993;Williams et al, 1995;Matteucci et al, 2011).…”

Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 93%

“…Under heat stress, the relative abundance of C 16:0 fatty acid was often found to increase, and the abundance of polyunsaturated C 18:3 fatty acid was found to decrease (Larkindale and Huang, 2004;Bakht et al, 2006). Furthermore, effects of temperature were observed for monoterpenes and sesquiterpenes, with compounds like limonene and myrcene having a close correlation with temperature, whereas others like 1,8-cineol were not affected by temperature (Maffei et al, 1993). As a cause, different sensitivities of individual steps in the genesis of the wax lipid components are assumed (Shepherd and Griffiths, 2006).…”

Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 97%

“…Thus, a positive correlation of long-chain odd n-alkanes with temperature was observed (Maffei et al, 1993;Zhang et al, 2004). Also, the abundance of membrane fatty acids with 16 and 18 carbons can change as a result of temperature (Maffei et al, 1993;Williams et al, 1995;Matteucci et al, 2011). Under heat stress, the relative abundance of C 16:0 fatty acid was often found to increase, and the abundance of polyunsaturated C 18:3 fatty acid was found to decrease (Larkindale and Huang, 2004;Bakht et al, 2006).…”

Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 98%

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Opportunities and limitations related to the application of plant-derived lipid molecular proxies in soil science

Jansen

Wiesenberg

2017

SOIL

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Abstract. The application of lipids in soils as molecular proxies, also often referred to as biomarkers, has dramatically increased in the last decades. Applications range from inferring changes in past vegetation composition, climate, and/or human presence to unraveling the input and turnover of soil organic matter (SOM). The molecules used are extractable and non-extractable lipids, including ester-bound lipids. In addition, the carbon or hydrogen isotopic composition of such molecules is used. While holding great promise, the application of soil lipids as molecular proxies comes with several constraining factors, the most important of which are (i) variability in the molecular composition of plant-derived organic matter both internally and between individual plants, (ii) variability in (the relative contribution of) input pathways into the soil, and (iii) the transformation and/or (selective) degradation of (some of) the molecules once present in the soil. Unfortunately, the information about such constraining factors and their impact on the applicability of molecular proxies is fragmented and scattered. The purpose of this study is to provide a critical review of the current state of knowledge with respect to the applicability of molecular proxies in soil science, specifically focusing on the factors constraining such applicability. Variability in genetic, ontogenetic, and environmental factors influences plant n-alkane patterns in such a way that no unique compounds or specific molecular proxies pointing to, for example, plant community differences or environmental influences, exist. Other components, such as n-alcohols, n-fatty acids, and cutin-and suberin-derived monomers, have received far less attention in this respect. Furthermore, there is a high diversity of input pathways offering both opportunities and limitations for the use of molecular proxies at the same time. New modeling approaches might offer a possibility to unravel such mixed input signals. Finally, the transformation and turnover of SOM offer opportunities when tracing such processes is the purpose of applying a molecular proxy while imposing limitations when they obliterate the molecular proxy signals linked to other phenomena. For n-alkanes several modeling approaches have recently been developed to compensate for (selective) degradation. Still, such techniques are in their infancy and information about their applicability to classes of components other than n-alkanes is lacking. All constraining factors considered can have a significant influence on the applicability of molecular proxies in soil science. The degree of influence strongly depends on the type of molecular proxy and the environmental context in which it is applied. However, the potential impact of the constraining factors should always explicitly be addressed whenever molecular proxies are applied in a soil scientific context. More importantly, there is still a serious lack of available information, in particular for compound classes other than the n-alkanes. Therefore, we...

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Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 93%

Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 97%

Section: Variation Related To Environmental Factors 231 Effects Of mentioning

confidence: 98%

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Opportunities and limitations related to the application of plant-derived lipid molecular proxies in soil science

Jansen

Wiesenberg

2017

SOIL

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“…Our findings support these previous studies, because we find that the interval during which the leaf flushes and waxes develop is the only period when the external environment affects the δ 2 H values of leaf waxes. Nonetheless, studies indicate that cuticular waxes of broadleaf angiosperms (27) and their δ 2 H n-alkane values may vary during a growing season (13,28,29). In these latter cases, the variation often is explained as reflecting short-term changes in the isotopic composition of leaf water and soil water.…”

Section: In Deciduous Species δ 2 H Values Reflect Plant Environment mentioning

confidence: 99%

Leaf-wax n -alkanes record the plant–water environment at leaf flush

Tipple

Berke

Doman

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

178

103

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Leaf-wax n-alkanes 2 H/ 1 H ratios are widely used as a proxy in climate reconstruction. Although the broad nature of the relationship between n-alkanes δ 2 H values and climate is appreciated, the quantitative details of the proxy remain elusive. To examine these details under natural environmental conditions, we studied a riparian broadleaf angiosperm species, Populus angustifolia, growing on water with a constant δ 2 H value and monitored the δ 2 H values of leaf-wax n-alkanes and of stem, leaf, stream, and atmospheric waters throughout the entire growing season. Here we found the δ 2 H values of leaf-wax n-alkanes recorded only a 2-wk period during leaf flush and did not vary for the 19 weeks thereafter when leaves remained active. We found δ 2 H values of leaf-wax n-alkanes of P. angustifolia record conditions earlier in the season rather than fully integrating the entire growing season. Using these data, we modeled precipitation δ 2 H values during the time of wax synthesis. We observed that the isotope ratios of this precipitation generally were 2 H-enriched compared with mean annual precipitation. This model provides a mechanistic basis of the often-observed 2 H-enrichment from the expected fractionation values in studies of broadleaf angiosperm leaf-wax δ 2 H. In addition, these findings may have implications for the spatial and temporal uses of n-alkane δ 2 H values in paleoapplications; when both plant community and growth form are known, this study allows the isolation of the precipitation dynamics of individual periods of the growing season.biomarkers | compound-specific isotope analysis | geographic information system | isoscape | stable isotopes S table isotopes serve as tracers and integrators of both environmental and physiological signals within plant materials. Terrestrial plant leaf waxes (i.e., n-alkanes, n-acids, and others) and their isotope ratios have attracted much interest as a higher plant-specific biomarker for paleoclimate reconstruction (1), because these compounds are easily identified and isolated from a variety of geologic materials and are relatively robust to geologic alteration (2). The environmental information recorded in hydrogen isotope ratios of leaf waxes have become a prevalent proxy to reconstruct ancient climates (3-5), mountain building events (6, 7), and floral transitions (8). However, critical questions related to the interpretation of ancient higher plant biomarkers remain unanswered, especially with respect to the extent of the leaf life cycle recorded by this proxy.Environmental and climate transect studies have shown that δ 2 H values of higher plant n-alkanes and environmental waters are correlated (9, 10), but temporal observations of δ 2 H values of n-alkanes have produced conflicting data on the nature of this relationship (11-15) that require clarification to elucidate how δ 2 H values of ancient n-alkanes can be interpreted. To reconcile these issues and to provide the critical constraints for climate reconstructions using δ 2 H values of n-alkanes, car...

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“…This influence has been demonstrated in several Labiatae (1)(2)(3)(4)(5)(6)(7)(8). Several researchers (5)(6)(7)(8) have stated that the composition of the essential oils extracted from Thymus plants depends on the species, variety and the environmental and ecological characteristics of the area where these plants grow.…”

Section: Introductionmentioning

confidence: 98%

Bioclimatic influence on essential oil composition in South Iberian Peninsular populations ofThymus zygis

Pérez-Sánchez

Gálvez²,

Ubera

2012

Journal of Essential Oil Research

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The variation in yield and essential oil composition of some plants of Thymus zygis was studied through their life cycle. The relationship between the concentration of the essential oils' main compounds and the most frequently used bioclimatic indices was stated. Individual samples from seven populations growing wild in the South Iberian Peninsula were studied to assess the phenological variation of their oils. The samples showed a maximum yield at the flowering stage. The most representative compounds were selected, statistically analyzed and clustered in two groups, called thymol and c-terpinene according to their behavior through the cycle of the plants studied.

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Environmental factors affecting the lipid metabolism in Rosmarinus officinalis L

Cited by 55 publications

References 39 publications

Opportunities and limitations related to the application of plant-derived lipid molecular proxies in soil science

Opportunities and limitations related to the application of plant-derived lipid molecular proxies in soil science

Leaf-wax n -alkanes record the plant–water environment at leaf flush

Bioclimatic influence on essential oil composition in South Iberian Peninsular populations ofThymus zygis

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