Excess of exogenous nitrates inhibits formation of abnormal wood in the Karelian birch

Галибина, Н. А.; Novitskaya, L. L.; Nikerova, Kseniya M.

doi:10.1134/s106236041602003x

Cited by 9 publications

(3 citation statements)

References 23 publications

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“…Karelian birch trees with non-figured wood have following metabolic scheme like: sucrose is cleaved mainly by sucrose synthase (SS) under the control of the SUS1 gene and this process is accompanied by active structural cell wall components synthesis, exactly cellulose (Galibina et al 2015a(Galibina et al , 2016aMoshchenskaya et al 2017). An increase in the apoplast invertase (ApInv) activity is observed while fig-ured wood is formed (Galibina et al 2015b).…”

Section: Introductionmentioning

confidence: 99%

“…Soil N is a well-known factor that affects the wood quality (Pokharel et al 2014). Soil conditions can affect physiological processes in plants, which is reflected in the changes of enzymes activity, including the carbohydrate and AOS metabolism enzymes (Tombesi et al 1969, Zbieć et al 1986, 1989Gurgul and Herman 1994, Gordon et al 1999Chikov et al 2003, Chikov and Bakirova 2004, Dani et al 2005, Batasheva 2006, Wilson et al 2008, Bruskova et al 2009, Nikitin et al 2010, Bourioug et al 2014, Galibina et al 2016a, b, 2019cIzmailov 2016, Nikerova and.…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies we investigated the effect of exogenous nitrate on SS, ApInv, POD activities in the trunks of silver birch and Karelian birch during cambial growth (Galibina et al 2016a;Nikerova and Galibina 2017). In silver birch, nitrate application increased sucrose utilization by SS, promoting wood growth, and it did not affect the POD activity.…”

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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