Responses of Macrophytes to Temperature

Berry, Joseph A.; Raison, JK

doi:10.1007/978-3-642-68090-8_11

Cited by 182 publications

(144 citation statements)

References 143 publications

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“…The balance between single metabolic steps or whole pathways may be altered by temperature changes (Berry & Raison, 1981). After acclimation to a u~ q~ respective temperature, metabolic processes are adjusted to an appointed rate, and a new balance is restored within an experimental time-span of mostly 5 weeks (Fig.…”

Section: Methodological Considerationsmentioning

confidence: 99%

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Bischoff

Wiencke

1993

Helgolander Meeresunters

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The temperature requirements for growth and upper temperature tolerance were determined in 16 macroalgal species collected on Disko Island (Greenland). The upper survival temperatures were examined in 1 ~ steps, and growth measured at 5~ intervals between 0 and 20 ~ using a refined method, where the fresh weight was determined weekly or fOrtnightly over a period of 5 or 6 weeks. To express temperature-growth responses, growth rates of temperatureacclimated plants were taken. Two groups with different temperature requirements were identified: The upper survival temperatures in these species and inChaetomorpha tortuosa, Bangia atropurpurea and Eudesme virescens were between 24 and 31 ~ These algal species showed little adaptation to the Arctic temperatures. In contrast, algae from the first group exhibited a relatively high adaptation to low temperatures -approaching the low temperature requirements of Antarctic algae. The results are discussed in relation to the geographic distribution of individual species.

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Section: Methodological Considerationsmentioning

confidence: 99%

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Bischoff

Wiencke

1993

Helgolander Meeresunters

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“…5A) "Introduction"). Experiments with variation of only one of the ntinuous Light at 320C two most important factors from the environment indicate light s, the low temperature inhibition (14) and low temperature inhibition of SER (2) …”

Section: Photo-and Thermoperiodic Control Of Stem Elongationmentioning

confidence: 99%

Stem Extension Rate in Light-Grown Plants

Lecharny¹,

Schwall²,

Wagner³

1985

Plant Physiol.

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In this publication we report the effects of cycles of light-dark and high-low temperature on SER of C. rubrum. The basic kinetics of pure photo-and thermoperiodic effects on SER are taken as a system of reference to study the interaction of light and temperature signals. The results are discussed in relation to current hypotheses ofthe nature of the biological clock and light perception in green plants (22,23).In their natural environment, plants develop under photo-and thermoperiodic conditions which change with the seasons. Developmental and behavioral responses of plants clearly demonstrate their potential for measuring the duration and sequence of environmental conditions. It is now generally accepted that time measurement in eukaryotes depends on the interaction of an

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“…Maximum tolerable Tween concentrations varied widely according to the fatty acid supplied. Potential uses of this system and implications of the observed modifications on the pathway of incorporation are discussed.Fatty acids perform a variety of important functions in plant cells, yet many questions about plant fatty acids ranging from the regulation of fatty acid synthesis to influences of membrane fatty acid composition on cell physiology are poorly understood (2,3,11,25).A system for manipulating plant membrane fatty acid composition in a controlled manner would be useful for a variety of studies related to fatty acids. Membranes ofother organisms have been manipulated by adding fatty acids to the diets of cells incapable of making their own, either due to mutation (1,24) or treatment with inhibitors (16,33).…”

mentioning

confidence: 99%

“…Fatty acids perform a variety of important functions in plant cells, yet many questions about plant fatty acids ranging from the regulation of fatty acid synthesis to influences of membrane fatty acid composition on cell physiology are poorly understood (2,3,11,25).…”

mentioning

confidence: 99%

“…Although incorporation ofexogenous lipids into both whole plants (10,31) and cultured cells (26) has been reported, most studies have used other means to modify membrane fatty acid compositions. Techniques used include growth conditions (2,11), inhibitors preventing the synthesis ofcertain classes offatty acids (12), catalytic hydrogenation of membrane fatty acids (30), and isolation of mutants lacking specific fatty acids (5). These studies have yielded useful information, but suffer from uncertainties as to secondary effects that may be induced.…”

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confidence: 99%

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A System for Manipulating the Membrane Fatty Acid Composition of Soybean Cell Cultures by Adding Tween-Fatty Acid Esters to Their Growth Medium

Terzaghi

1986

Plant Physiol.

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The development of a system for modifying the membrane fatty acid composition of cultured soybean cells (Glycine max [L.] Merr.) is described. Tween-fatty acid esters carrying specific fatty acids were synthesized and added to the medium of suspension cultures. Cells transferred large quantities of exogenous fatty acids from Tweens to all acylated membrane lipids; up to 50% of membrane fatty acids were exogenously derived. C15 to C20 saturated fatty acids and C16, C18, and C20 unsaturated fatty acids with either cis or trans double bonds were incorporated into lipids. Cells elongated saturated fatty acids of C16 or less, and unsaturated fatty acids with cis double bonds were further desaturated. No other types of modifications were observed. Growth ceased in cells treated with excessive concentrations of Tween-fatty acid esters, but frequently not for several days. Cessation of cell growth was correlated with changes in membrane fatty acid composition resulting from incorporation of large amounts of exogenous fatty acids into membrane lipids, although cells tolerated large variations in fatty acid composition. Maximum tolerable Tween concentrations varied widely according to the fatty acid supplied. Potential uses of this system and implications of the observed modifications on the pathway of incorporation are discussed.Fatty acids perform a variety of important functions in plant cells, yet many questions about plant fatty acids ranging from the regulation of fatty acid synthesis to influences of membrane fatty acid composition on cell physiology are poorly understood (2,3,11,25).A system for manipulating plant membrane fatty acid composition in a controlled manner would be useful for a variety of studies related to fatty acids. Membranes ofother organisms have been manipulated by adding fatty acids to the diets of cells incapable of making their own, either due to mutation (1,24) or treatment with inhibitors (16,33). However, plants do not normally take up lipids from their environment, nor do they appear '

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Responses of Macrophytes to Temperature

Cited by 182 publications

References 143 publications

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Stem Extension Rate in Light-Grown Plants

A System for Manipulating the Membrane Fatty Acid Composition of Soybean Cell Cultures by Adding Tween-Fatty Acid Esters to Their Growth Medium

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