Assessment of the quality of beet varieties in the Moscow region

Тимакова, Л.Н.; Borisov, V. A.; Filroze, N.A.; Успенская, О.Н.; Соколова, Л. В.

doi:10.25630/pav.2020.83.92.004

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Provocative environmental conditions that initiate the transition of a crop to the next stage of ontogenesis most likely cause an arrest in the pigment synthesis. That is why high betanin levels were rarely been recorded for earlier-ripening table beet accessions (Egyptian flat type) [35]. [ 62 ]…”

Section: рис 4 двухфакторный анализ аминокислот в образцах столовой с...mentioning

confidence: 99%

Primary metabolites and betanin: their interplay in the roots of Table Beet (Beta vulgaris L.)

2023

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Relevance. The main source of the natural pigment betanin is table beet, known for its medicinal and antioxidant properties, earliness and long shelf life, rich in bioactive compounds, minerals and vitamins. This research was induced by the lack of information required by breeders to increase betanin content in beet. Metabolite profiling is an effective way to assess the interplay between individual metabolites and betanin content in table beet.Materials and methods. The material was selected from the the N.I. Vavilov Institute of plant industry (VIR) collection. Biochemical analysis was based on VIR’s guidelines, and metabolite profiling on gas chromatography, coupled with mass spectrometry.Results. 17 free amino acids were found in the beet root extract. The greatest number of positive correlations with other amino acids (r˃0.72) was found in tyrosine, alanine and phenylalanine. A significant (r = –0.66) negative correlation was observed between betanin and succinic acid, credibly associated with betalamic acid. Sucrose predominated among carbohydrates (95%). Sucrose and maltose showed a weak positive correlation with betanin. Unsaturated oleic and saturated palmitic acids dominated among fatty acids (52% and 20% of total fatty acids, respectively). Earlier-ripening and cold-resistant table beet accessions showed a predominance of unsaturated fatty acids and lower betanin content. The disclosed interactions are important for betanin-rich red beet breeding.

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Section: рис 4 двухфакторный анализ аминокислот в образцах столовой с...mentioning

confidence: 99%

Primary metabolites and betanin: their interplay in the roots of Table Beet (Beta vulgaris L.)

2023

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Assessment of the resistance of inbred table beet lines to cercosporosis (Cercospora beticola Sacc.) in field and laboratory conditions

Timakova,

Alekseeva,

Sokolova

2024

Ovoŝi Rossii

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Relevance. Cercospora leaf spot (Сercospora beticola) is a widespread disease of table beet that reduces the yield of root crops in many beet-growing regions. Annual losses from cercosporosis amount to 30-40%, and in the years of epiphytotic diseases – 50% or more. The fungus has a complex intraspecific structure, includes many pathotypes and races, which should be taken into account when breeding for resistance. The main method of creating resistant forms of table beet to C. beticola is the selection of cercospore-resistant lines in the natural manifestation of the disease and on artificial backgrounds. In open ground conditions, it is not always possible to assess the resistance of table beet to cercosporosis, since cercosporosis is weak in some hot and dry years. Therefore, laboratory assessment methods are important to accelerate the breeding process. The purpose of the research is to carry out an immunological analysis of beet lines in the field and laboratory conditions for the selection of sustainable material.Materials and methods. The assessment of beet variety samples for resistance to cercospora blight was carried out in open ground conditions on the basis of the All-Russian Scientific Research Institute of Vegetable Growing – branch of the FSBSI Federal Scientific Vegetable Center (Moscow region). In laboratory conditions, artificial infection of separated red beet leaves was carried out. The objects of the study were inbred lines of red beets of the 1st-6th generation.Results and discussion. As a result of evaluation and selection, red beet lines No. 713 and 790 with increased resistance to cercospora blight were identified. It has been established that for practical breeding it is necessary to constantly and strictly select for resistance to cercospora blight. In laboratory conditions, a method of artificial infection of separated leaves has been developed, which allows for a short period of time to carry out a preliminary assessment of a large number of beetroot samples for resistance to cercospora blight.

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Betalain Content and Morphological Characteristics of Table Beet Accessions: Their Interplay with Abiotic Factors

et al. 2022

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Table beet (Beta vulgaris L.) is a source of the natural red-colored food dye (E162), highly demanded for the broad spectrum of its biological activity. The relevance of this study is dictated by the lack of knowledge about the dynamics of changes in the crop’s betalain content during the growing season, which impedes identifying the optimal timing of harvesting in order to obtain the dye. This paper presents the results of research into betacyanins (BC) and betaxanthins (BX), separately in the peel and flesh of roots, in 15 differently colored table beet accessions from the collection of the N.I. Vavilov Institute (VIR). There was no statistically significant accumulation of betalains in beets during the growing season. The pigment’s significant fluctuations associated with abiotic environmental factors were shown. The ratio of BC/BX in red-colored accessions was measured: 2.65 in the peel and 2.9 in the flesh. Strong positive relationships were found between BC and BX in the peel (r = 0.97) and flesh (r = 0.79) of red-colored biotypes, which stably persisted throughout the growing season. The beetroot peel was more sensitive to temperature changes, in contrast to the flesh. The negative effect of a temperature increase on betalains in red-colored beetroots intensified on the second or third day. The pigment composition of the flesh was less susceptible to the negative impact of increased temperatures, but reacted negatively to rainfall, becoming more expressed on the second or third day. A conclusion was made about the morphotype with high betalain content. Recommended cultivars are mid-ripening, with rounded and medium-sized roots, a large number of narrow leaf blades, and short and thin petioles.

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Assessment of the quality of beet varieties in the Moscow region

Cited by 3 publications

References 4 publications

Primary metabolites and betanin: their interplay in the roots of Table Beet (Beta vulgaris L.)

Primary metabolites and betanin: their interplay in the roots of Table Beet (Beta vulgaris L.)

Assessment of the resistance of inbred table beet lines to cercosporosis (Cercospora beticola Sacc.) in field and laboratory conditions

Betalain Content and Morphological Characteristics of Table Beet Accessions: Their Interplay with Abiotic Factors

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