Abstract
The influence of contrasting conditions of trophic support of vernalization on the growth reaction and dynamics of the content of various fractions of soluble carbohydrates of sprouts of two winter wheat varieties Statna and Doridna were studied. In experiments, the contrasting trophic conditions of vernalization were created by adding 3% sucrose solution, as well as isolation of endosperm, a natural reserve of carbohydrates and biologically active substances. It was shown that optimal conditions of trophic support (integral seeds + water) determined the maximum linear growth and accumulation of sprouts biomass during vernalization. The excess of exogenous sugars (integral seeds + 3% sucrose solution) inhibited growth processes. However, the deficit of trophic factors (isolated buds + 3% sucrose solution) also inhibited growth and the lack of trophic support (isolated buds + water) completely inhibited growth and accumulation of sprouts biomass during 45 days of vernalization. It was established that the dynamics of changes in soluble carbohydrates content in winter wheat sprouts also depended on the trophic support level of vernalization and correlated with changes of growth reaction. It was shown the oligosaccharide content was significantly higher than monosaccharide content of sprouts of all the variants of both varieties during the entire period of vernalization. In view of the fact that monosaccharides are the most metabolically active carbohydrates, they are probably spent as much as possible at the first stages of vernalization (15–30 days). It is discussed that different level of trophic support is able to be one of the important factors of genetic and/or epigenetic regulation of Triticum aestivum L. Thus, changes in metabolic processes, in particular carbohydrate metabolism, can effect on the reduction of VRN genes expression, which are the target of epigenetic regulation, and as a result, on the ability of soft wheat plants to flower. It is assumed that the regulatory role of carbohydrates in vernalization process can be realized only at the optimal level of trophic support.
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Claims 6
Claim · model-written summary
Optimal trophic support (integral seeds + water) gave the maximum linear growth and biomass accumulation of sprouts during vernalization.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- integral seeds + watere1
- Outcome
- linear growthe1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e1“optimal conditions of trophic support (integral seeds + water) determined the maximum linear growth and accumulation of sprouts biomass during vernalization”
Claim · model-written summary
Excess exogenous sugars (integral seeds + 3% sucrose solution) inhibited sprout growth processes.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- integral seeds + 3% sucrose solutione2
- Outcome
- growth processese2
- Direction
- inhibitede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e2“The excess of exogenous sugars (integral seeds + 3% sucrose solution) inhibited growth processes”
Claim · model-written summary
A deficit of trophic factors (isolated buds + 3% sucrose solution) also inhibited sprout growth.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- isolated buds + 3% sucrose solutione3
- Outcome
- growthe3
- Direction
- inhibitede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e3“the deficit of trophic factors (isolated buds + 3% sucrose solution) also inhibited growth”
Claim · model-written summary
Lack of trophic support (isolated buds + water) completely inhibited sprout growth and biomass accumulation during 45 days of vernalization.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- isolated buds + watere4
- Outcome
- growth and accumulation of sprouts biomasse4
- Direction
- completely inhibitede4
- Qualifier
- during 45 days of vernalizatione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e4“the lack of trophic support (isolated buds + water) completely inhibited growth and accumulation of sprouts biomass during 45 days of vernalization”
Claim · model-written summary
Oligosaccharide content was significantly higher than monosaccharide content in sprouts of all variants of both varieties throughout vernalization.
- Taxon
- winter wheatTriticum aestivumt0
- Outcome
- oligosaccharide contente5
- Direction
- significantly highere5
- Qualifier
- during the entire period of vernalizatione5
- Comparator
- monosaccharide contente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e5“the oligosaccharide content was significantly higher than monosaccharide content of sprouts of all the variants of both varieties during the entire period of vernalization”
Claim · model-written summary
Soluble carbohydrate content in winter wheat sprouts depended on the trophic support level and correlated with growth reaction.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- trophic support level of vernalizatione6
- Outcome
- soluble carbohydrates contente6
- Direction
- correlatede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat sprouts”
e6“the dynamics of changes in soluble carbohydrates content in winter wheat sprouts also depended on the trophic support level of vernalization and correlated with changes of growth reaction”
The same questions in other papers
sucrose · growth · Triticum aestivum (wheat)Positive and negative results
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