Labile Nitrogen Availability in Soil Influences the Expression of Wood Pattern in Karelian Birch

Галибина, Н. А.; Novitskaya, L. L.; Nikerova, Kseniya M.; Moshkina, Elena; Moshchenskaya, Yu. L.; Borodina, Marina Nikolaevna; Sofronova, Irina N.; Николаева, Н.Н.

doi:10.1134/s0006813619100053

Cited by 9 publications

(8 citation statements)

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“…Trees with figured wood were arranged into 3 groups according to the figure intensity (1-3 points, where 1 corresponds for the least intensive pattern and 3 -for the highest figure intensity) (Galibina et al 2019c, Novitskaya et al 2020.…”

Section: Plant Materialsmentioning

confidence: 99%

“…The pooled supernatant and sediment were dialyzed at 4°C for 18-20 h against tenfold diluted homogenization buffer. Enzymes activity was determined spectrophotometrically (Spectrophotometer SF-2000, OKB Spectr, Russia) (Galibina et al 2019c).…”

Section: Biochemical Analysismentioning

confidence: 99%

“…Besides, this soil layer contained a large mass of plant roots. Nutrient reserves determined for individual soils were recalculated for the areas occupied by these soils in the landscape (Galibina et al 2019c).…”

Section: Soil Analysesmentioning

confidence: 99%

“…However, the availability of N and its ratio to P level in the soil influence the expression of figure in the wood in Karelian birch, as indicated by variations in the activity of enzymes -SS, ApInv and nitrate reductase (NR). An increased supply of nitrate N to a plant entails a rise in NR activity, which negatively affects the formation of patterned wood (Galibina et al 2019c).…”

Section: Introductionmentioning

confidence: 99%

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The effect of soil fertility on antioxidant enzymes activity in a subarctic woody species

Nikerova¹,

Галибина²,

Moshchenskaya³

et al. 2021

Czech Polar Rep.

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The influence of major nutrients’ reserves (available to plants) – nitrogen (N), phosphorus (P), potassium (K) – in the top 25-cm layer of soil on the Karelian birch (Betula pendula Roth var. carelica (Mercl.) Hämet-Ahti) with non-figured and figured wood via the antioxidant enzymes’ activity was investigated. The analysis of sites in area where Karelian birch trees with varying degree of figured wood intensity were growing was carried out. The cambial zone of the sample trees during active cambial growth period was studied for the activity of AOS enzyme complex (superoxide dismutase (SOD); catalase (CAT); peroxidase (POD); polyphenol oxidase (PPO)). Cellulose content and lignin content were studied. It was noticed that the availability of major nutrients in the investigated sites had influence on the degree of figured wood intensity in Karelian birch plants. Thus, non-figured and figured Karelian birch plants that grew on sites with various levels of major nutrients’ reserves differed in the AOS enzymes’ activity, which was a consequence of different xylogenesis scenarios in the studied birch forms. It was supposed, that the certain site conditions (N, P, K levels) formation could affect the degree of figured wood intensity, cellulose and lignin content. The N level and P/N ratio had the most effects under the adequate K level. So AOS enzymes’ complex activity could indicate differences in Karelian birch wood quality in sites that differ in soil fertility (N, P, K levels).

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Section: Plant Materialsmentioning

confidence: 99%

Section: Biochemical Analysismentioning

confidence: 99%

Section: Soil Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of soil fertility on antioxidant enzymes activity in a subarctic woody species

Nikerova¹,

Галибина²,

Moshchenskaya³

et al. 2021

Czech Polar Rep.

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“…The structural anomalies of wood are most pronounced in Karelian birch compared to all tree birch species [23,24]. These abnormalities are characterized by a wide variety of manifestations in ontogeny and by a high level of endogenous variability; their appearance, development, and attenuation depend on the influence of environmental factors [25]. The figured wood is a hereditary trait, but even with controlled pollination, part of the trees in the progeny would still have straight-grained wood, the so-called non-figured Karelian birch trees [20,26,27].…”

Section: Introductionmentioning

confidence: 99%

Molecular Genetic Characteristics of Different Scenarios of Xylogenesis on the Example of Two Forms of Silver Birch Differing in the Ratio of Structural Elements in the Xylem

Галибина

Tarelkina

Chirva

et al. 2021

Plants

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Silver birch (Betula pendula Roth) is an economically important species in Northern Europe. The current research focused on the molecular background of different xylogenesis scenarios in the birch trunks. The study objects were two forms of silver birch, silver birch trees, and Karelian birch trees; the latter form is characterized by the formation of two types of wood, non-figured (straight-grained) and figured, respectively, while it is currently not clear which factors cause this difference. We identified VND/NST/SND genes that regulate secondary cell wall biosynthesis in the birch genome and revealed differences in their expression in association with the formation of xylem with different ratios of structural elements. High expression levels of BpVND7 accompanied differentiation of the type of xylem which is characteristic of the species. At the same time, the appearance of figured wood was accompanied by the low expression levels of the VND genes and increased levels of expression of NST and SND genes. We identified BpARF5 as a crucial regulator of auxin-dependent vascular patterning and its direct target—BpHB8. A decrease in the BpARF5 level expression in differentiating xylem was a specific characteristic of both Karelian birch with figured and non-figured wood. Decreased BpARF5 level expression in non-figured trees accompanied by decreased BpHB8 and VND/NST/SND expression levels compared to figured Karelian birch trees. According to the results obtained, we suggested silver birch forms differing in wood anatomy as valuable objects in studying the regulation of xylogenesis.

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Upregulation of antioxidant enzymes is a biochemical indicator of abnormal xylogenesis in Karelian birch

Nikerova

Галибина

Moshchenskaya

et al. 2021

Trees

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Labile Nitrogen Availability in Soil Influences the Expression of Wood Pattern in Karelian Birch

Cited by 9 publications

References 0 publications

The effect of soil fertility on antioxidant enzymes activity in a subarctic woody species

The effect of soil fertility on antioxidant enzymes activity in a subarctic woody species

Molecular Genetic Characteristics of Different Scenarios of Xylogenesis on the Example of Two Forms of Silver Birch Differing in the Ratio of Structural Elements in the Xylem

Upregulation of antioxidant enzymes is a biochemical indicator of abnormal xylogenesis in Karelian birch

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