Increased Cell-Wall Mass and Resistance to Freezing and Snow Mold during Cold Acclimation of Winter Wheat under Field Conditions

Sugiyama, Shu-ichi; Shimazaki, Tomonori

doi:10.1626/pps.10.383

Cited by 10 publications

(9 citation statements)

References 15 publications

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“…Although both freezing tolerance and snow mold tolerance have been associated with cellular carbohydrate dynamics during low temperature growth (Yoshida et al 1998; Gaudet et al 1999; Sugiyama and Shimazaki 2007), demonstration of a causative relationship has remained elusive.…”

mentioning

confidence: 99%

“…Cold-acclimation of winter wheat plants can result in an accompanying increase in snow mold tolerance ( Gaudet and Chen 1987 ; Yoshida et al 1998 ; Gaudet et al 1999 ; Nishio et al 2008 ); however, snow mold tolerance has also been found to occur independently of cold acclimation ( Ergon and Tronsmo 2006 ). Although both freezing tolerance and snow mold tolerance have been associated with cellular carbohydrate dynamics during low temperature growth ( Yoshida et al 1998 ; Gaudet et al 1999 ; Sugiyama and Shimazaki 2007 ), demonstration of a causative relationship has remained elusive.…”

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confidence: 99%

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Genomic Regions Associated with Tolerance to Freezing Stress and Snow Mold in Winter Wheat

Kruse

Carle

Wen

et al. 2017

G3 Genes|Genomes|Genetics

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Plants grown through the winter are subject to selective pressures that vary with each year’s unique conditions, necessitating tolerance of numerous abiotic and biotic stress factors. The objective of this study was to identify molecular markers in winter wheat (Triticum aestivum L.) associated with tolerance of two of these stresses, freezing temperatures and snow mold—a fungal disease complex active under snow cover. A population of 155 F2:5 recombinant inbred lines from a cross between soft white wheat cultivars “Finch” and “Eltan” was evaluated for snow mold tolerance in the field, and for freezing tolerance under controlled conditions. A total of 663 molecular markers was used to construct a genetic linkage map and identify marker-trait associations. One quantitative trait locus (QTL) associated with both freezing and snow mold tolerance was identified on chromosome 5A. A second, distinct, QTL associated with freezing tolerance also was found on 5A, and a third on 4B. A second QTL associated with snow mold tolerance was identified on chromosome 6B. The QTL on 5A associated with both traits was closely linked with the Fr-A2 (Frost-Resistance A2) locus; its significant association with both traits may have resulted from pleiotropic effects, or from greater low temperature tolerance enabling the plants to better defend against snow mold pathogens. The QTL on 4B associated with freezing tolerance, and the QTL on 6B associated with snow mold tolerance have not been reported previously, and may be useful in the identification of sources of tolerance for these traits.

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confidence: 99%

mentioning

confidence: 99%

Genomic Regions Associated with Tolerance to Freezing Stress and Snow Mold in Winter Wheat

Kruse

Carle

Wen

et al. 2017

G3 Genes|Genomes|Genetics

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“…Microclimatic conditions, especially the temperature and humidity of the environment, strongly influence the infection process (Smith 1981 ; Hömmö 1994 ; Sugiyama and Shimazaki 2007 ). Immediately after snow melt, the fungi show a pale pinkish mycelium in patches (Fig.…”

Section: Symptoms and Pathogenicitymentioning

confidence: 99%

Snow mold of winter cereals: a complex disease and a challenge for resistance breeding

et al. 2020

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Key message Snow mold resistance is a complex quantitative trait highly affected by environmental conditions during winter that must be addressed by resistance breeding. Abstract Snow mold resistance in winter cereals is an important trait for many countries in the Northern Hemisphere. The disease is caused by at least four complexes of soilborne fungi and oomycetes of which Microdochium nivale and M. majus are among the most common pathogens. They have a broad host range covering all winter and spring cereals and can basically affect all plant growth stages and organs. Their attack leads to a low germination rate, and/or pre- and post-emergence death of seedlings after winter and, depending on largely unknown environmental conditions, also to foot rot, leaf blight, and head blight. Resistance in winter wheat and triticale is governed by a multitude of quantitative trait loci (QTL) with mainly additive effects highly affected by genotype × environment interaction. Snow mold resistance interacts with winter hardiness in a complex way leading to a co-localization of resistance QTLs with QTLs/genes for freezing tolerance. In practical breeding, a multistep procedure is necessary with (1) freezing tolerance tests, (2) climate chamber tests for snow mold resistance, and (3) field tests in locations with and without regularly occurring snow cover. In the future, resistance sources should be genetically characterized also in rye by QTL mapping or genome-wide association studies. The development of genomic selection procedures should be prioritized in breeding research.

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“…For comparison, simple linear regressions of the data for [Mg] shoot and [Ca] shoot suggest an [Mg] shoot of 1294 and 2252 mg kg -1 leaf DM for commelinid monocots and eudicots excluding Caryophyllales at a [Ca] shoot of 816 mg Ca kg -1 leaf DM, respectively. Assuming minimal leaf concentrations of 1 mg Ca g -1 DM and 2 mg Mg g -1 DM for a commelinid monocot, cell wall concentrations of 0.37 mg Ca g -1 cell wall DM and 0.12 mg Mg g -1 cell wall DM can be calculated based on a the cell wall contributing 50 % of the total leaf DM (Sugiyama and Shimazaki, 2007). Both these values are similar to estimates of the Ca concentration (0.26-3.0 mg Ca g -1 DM; Turan et al, 2009;Zeng et al, 2010) and Mg concentration (0.072 mg Mg g -1 DM; Zeng et al, 2010) in cell walls of monocot leaves, and the calculated cell wall Ca/Mg mass quotient of 3.02 is comparable with that in shoots of rice (3.56 mg Mg g -1 DM; Zeng et al, 2010).…”

Section: The Contributions Of Cell Walls and Intracellular Compartmenmentioning

confidence: 99%

Linear relationships between shoot magnesium and calcium concentrations among angiosperm species are associated with cell wall chemistry

et al. 2018

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This article argues that, in plants that do not exhibit 'luxury' accumulation of Mg or Ca, (1) distinct stoichiometric relationships between [Mg]shoot and [Ca]shoot are exhibited by at least three groups of angiosperm species, namely commelinid monocots, eudicots excluding Caryophyllales, and Caryophyllales species; (2) these relationships are determined by cell wall chemistry and the Mg/Ca mass quotients in their cell walls; (3) differences between species in [Mg]shoot and [Ca]shoot within each group are associated with differences in the cation exchange capacity (CEC) of the cell walls of different species; and (4) Caryophyllales constitutively accumulate more Mg in their vacuoles than other angiosperm species when grown without a supra-sufficient Mg supply.

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Increased Cell-Wall Mass and Resistance to Freezing and Snow Mold during Cold Acclimation of Winter Wheat under Field Conditions

Cited by 10 publications

References 15 publications

Genomic Regions Associated with Tolerance to Freezing Stress and Snow Mold in Winter Wheat

Genomic Regions Associated with Tolerance to Freezing Stress and Snow Mold in Winter Wheat

Snow mold of winter cereals: a complex disease and a challenge for resistance breeding

Linear relationships between shoot magnesium and calcium concentrations among angiosperm species are associated with cell wall chemistry

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