Wachstumsreaktionen verschiedener Provenienzen der Weißtanne (Abies alba Mill.) nach winterlicher SOj‐Begasung

Larsen, Jørgen Falck; Friedrich, Julia

doi:10.1111/j.1439-0329.1988.tb00918.x

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…Even though the results of a number of ecophysiological experiments (provenance variation and response to frost, SO2, water stress as well as root regeneration and gas exchange properties) are in accordance with the hypothesis (Larsen, 1986b;Larsen & Friedrich, 1988;Meki~, 1988;Quian, 1989), confirmation through studies on patterns of genetic variation is pending. The aim of the present work is therefore to verify the above hypothesis by estimating the levels of genetic variation within fir populations using enzyme polymorphisms whose mode of inheritance is known.…”

Section: Introductionmentioning

confidence: 82%

Levels of genetic variation in European silver fir (Abies alba)

1990

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The distribution of genetic variation at nine enzyme gene loci in the European range of silver fir is studied with the aim to characterize the genetic basis of this species' adaptive potentials. For this purpose, the basic notions of physiological and evolutionary adaptive potential are briefly discussed in connection with operating and latent genetic potentials of populations. A measure for the quantification of latent genetic potential is introduced together with a procedure that evaluates the detective power of the samples taken. The results obtained from application of this measure are in striking accordance with earlier suggestions based chiefly on ecophysiological traits, and which assume both low physiological and evolutionary adaptive potential in the central and northeastern European populations of silver fir. Moreover, careful consideration of the structural and functional characteristics of the enzymes used in the present study support the assumption that they are not selectively neutral, and in one case it can indeed be demonstrated that the two alleles at a locus are very likely to be under selection for temperature differences between central and southern European populations.

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Section: Introductionmentioning

confidence: 82%

Levels of genetic variation in European silver fir (Abies alba)

1990

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“…Besides natural factors, for example water stress (Davis and Mansfield 1983), anthropogenic air pollutants (SO2, photooxidants) are frequently discussed as factors causing damage to silver fir (Larsen 1986;Larsen and Friedrich 1988). Disturbances in the hormonal balance of affected trees can lead to premature senescence and loss of needles.…”

Section: Introductionmentioning

confidence: 99%

Quantitative analysis of abscisic acid in needles of Abies alba Mill. by electron capture gas chromatography

Kraus

Ziegler

1993

Trees

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Summary. The amount of abscisic acid (ABA) in needles of silver fir from a natural location was investigated with regard to position in the crown, damage, seasonal variation, and needle age. Because of problems of quantification of ABA in coniferous needles, which contain numerous secondary plant products, a method for reliable determination of both isomers cis-trans-ABA (c-ABA) and transtrans-ABA (t-ABA) was developed. By means of gas chromatography (GC) using an electron capture detector (ECD) and a programmed temperature vaporizer (PTV) injector complete separation of both compounds was achieved. Two different pairs of fir were investigated -in each case a damaged and a healthy tree. Needles from both trees from the first and the second pair collected in September contained 500-1100 ng c-ABA/g fresh weight (FW), and the concentrations of t-ABA varied from 400 to 700 ng/g FW. Investigations from the second pair show highest amounts of 2900 ng/g Fw c-ABA and 1800 ng/g FW of t-ABA in May and June. For the first pair a higher c-ABA content was found in needles from the top of the crown than in those from the middle and the base. This difference could not be confirmed in the analysis of the second pair. Because of the strong natural deviation no statistically significant difference between the healthy and the damaged tree was found. The first pair of firs examined showed a higher t-ABA concentration than the second one. In this case the highest amount was found in the top of the crown. Methodical mistakes during the clean-up procedure and in quantification by gas chromatography could be excluded. The presence of c-and t-ABA in the purified extract was corroborated by mass spectrometry. With regard to the seasonal variation both isomers of ABA show an unequivocal trend. The maximum concentration is achieved in May to June, whereas the content is minimal inCorrespondence to: H. Ziegler August/September. In any case the level of t-ABA is lower than that of c-ABA. No correlation between the amount of ABA and the needle age could be established.

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“…Dalla seconda metà del secolo scorso sono stati intrapresi numerosi studi relativi a possibili differenze genetiche (Pavari 1951, Parducci et al 1996, Ducci & Proietti 1997, Lie pelt et al 2002, Hansen & Larsen 2004, morfologiche ed ecologiche (Pavari 1951, Susmel 1954, Messeri et al 1963, Giannini & Magini 1970, Magini & Giannini 1972, Ciampi & Di Tommaso 1973, Giannini 1973, Magini 1973, Larsen & Friedrich 1988, Pennacchini & Ducci 1991) tra provenienze ed al suo deperimento diffuso in Italia centrale (Moriondo & Covassi 1981) e soprattutto in Toscana (Clauser 1980, Clauser 1981, La Marca 1983, Hippoliti 1989, La Marca et al 1993.…”

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Growth dynamics and climatic sensitivity of Silver fir (Abies albaMill.) in the European important site (SIC) at the Alpe della Luna - Bocca Trabaria (PU - Italy)

Gallucci¹,

Urbinati²

2009

Forest@

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Wachstumsreaktionen verschiedener Provenienzen der Weißtanne (Abies alba Mill.) nach winterlicher SOj‐Begasung

Cited by 8 publications

References 7 publications

Levels of genetic variation in European silver fir (Abies alba)

Levels of genetic variation in European silver fir (Abies alba)

Quantitative analysis of abscisic acid in needles of Abies alba Mill. by electron capture gas chromatography

Growth dynamics and climatic sensitivity of Silver fir (Abies albaMill.) in the European important site (SIC) at the Alpe della Luna - Bocca Trabaria (PU - Italy)

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