Intracellular resistance correlates with initial stage of frost hardening in willow (Salix viminalis)

Repo, Tapani; Hiekkala, Panu; Hietala, Timo; Tahvanainen, Liisa

doi:10.1034/j.1399-3054.1997.1010325.x

Cited by 2 publications

(9 citation statements)

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“…One of the methods that have been used to study cold acclimation in plants is electrical impedance spectroscopy (EIS) (Repo et al. 1995, 1997, 2000a).…”

Section: Introductionmentioning

confidence: 99%

“…EIS has also been used previously to characterize the properties of both inorganic and biological materials (Zhang and Willison 1991, Repo and Zhang 1993), and it may provide information about the structural changes in plant cells and tissues during their annual cycle (Mancuso 1998). Intracellular resistance and relaxation time in stems of willow ( Salix viminalis L.) and Scots pine ( Pinus sylvestris L.) have displayed a high correlation with frost hardiness (FH) (Repo et al. 1995, 1997, 2000a).…”

Section: Introductionmentioning

confidence: 99%

“…The dry weight (DW) content on woody plant shoots increases with frost hardening (Junttila and Kaurin 1990, Toivonen et al. 1991, Repo et al.…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies, the DW content of plant tissues started to increase before the frost hardening had started. The increase in the DW content proceeded faster than the FH increased in the first stage of cold acclimation, and the change in the DW content also ended earlier than the frost hardening ceased (Sutinen 1992, Repo et al. 1997, 2000a).…”

Section: Introductionmentioning

confidence: 99%

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The electrical impedance spectroscopy of Scots pine needles during cold acclimation

Zhang

Ryyppö

Repo

2002

Physiologia Plantarum

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The electrical impedance spectroscopy (EIS) was applied to current-year needles of Scots pine (Pinus sylvestris L.) in an 8-year provenance field trial in central Finland during frost hardening. The EIS analysis of the needles using a Model-A equivalent circuit indicated a sequence of events in the needles during their cold acclimation. Some of the EIS-parameters referred to maturation phenomena occurring during the pre-hardening phase at the end of the growing season, and some parameters displayed a clear coincidence with the frost hardening itself. Significant differences between provenances were found in several of the Model-A parameters. Extracellular resistance (re) and beta-coefficient decreased in all provenances in the pre-hardening phase in August and until mid-September. In the same phase, both the intracellular resistance (ri) and the cell membrane time constant (taum) first increased and then decreased. According to taum, re and beta there was a clear gradation between provenances in the pre-hardening phase. From the end of September significant differences were found in the intracellular resistance between provenances, corresponding with the differences in their hardening pattern. The dry weight (DW) content of needles increased during the study period but no clear differences were found between the provenances.

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“…One of the methods that have been used to study cold acclimation in plants is electrical impedance spectroscopy (EIS) (Repo et al. 1995, 1997, 2000a).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The dry weight (DW) content on woody plant shoots increases with frost hardening (Junttila and Kaurin 1990, Toivonen et al. 1991, Repo et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The electrical impedance spectroscopy of Scots pine needles during cold acclimation

Zhang

Ryyppö

Repo

2002

Physiologia Plantarum

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“…Characterising quantitative trait loci (QTLs) could supply the desired information in the future [3], but currently detailed quantitative data are not available [4,6]. Quantitative data can be obtained using electrical impedance spectroscopy during the early hardening phase [20]. Recently, promising results have been obtained using reflectance spectroscopy in the visible and near infrared ranges.…”

Section: Introductionmentioning

confidence: 99%

Screening for efficient cold hardening in a breeding population of Salix using near infrared reflectance spectroscopy

Lennartsson

Ögren

2004

Ann. For. Sci.

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-The inheritance of cold hardening components -the timing of onset and the inherent rate -was studied in Salix spp. This was achieved by characterising the F 2 population of a cross between an early-and-rapidly hardening clone and a late-and-slowly hardening clone. The cold hardiness of stems was estimated using the infrared reflectance spectra of dried and homogenised samples. This method was first calibrated against the freeze test method. The timing of growth cessation was used to determine the onset of cold hardening. In the F 2 progeny, traits were partly recombined as indicated by the occurrence of clones with early-and-slowly hardening characteristics. The frequency distributions of clones also indicated that the timing of onset and the inherent rate of hardening were independently inherited traits. None of the clones exhibited the desirable late-and-rapidly hardening characteristics, combining a long growing period with effective cold hardening. This is not surprising since few F 2 clones exhibited late hardening. acclimatation au froid / arrêt de croissance / spectroscopie du proche-infrarouge / Salix / amélioration génétique des arbres

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Intracellular resistance correlates with initial stage of frost hardening in willow (Salix viminalis)

Cited by 2 publications

References 0 publications

The electrical impedance spectroscopy of Scots pine needles during cold acclimation

The electrical impedance spectroscopy of Scots pine needles during cold acclimation

Screening for efficient cold hardening in a breeding population of Salix using near infrared reflectance spectroscopy

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