Various effects of the expression of the xyloglucanase gene from Penicillium canescens in transgenic aspen under semi-natural conditions : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1186/s12870-020-02469-2

Аннотация: BACKGROUND: Recombinant carbohydrases genes are used to produce transgenic woody plants with improved phenotypic traits. However, cultivation of such plants in open field is challenging due to a number of problems. Therefore, additional research is needed to alleviate them. RESULTS: Results of successful cultivation of the transgenic aspens (Populus tremula) carrying the recombinant xyloglucanase gene (sp-Xeg) from Penicillium canescens in semi-natural conditions are reported in this paper for the first time. Change of carbohydrate composition of wood was observed in transgenic aspens carrying the sp-Xeg gene. The transformed transgenic line Xeg-2-1b demonstrated accelerated growth and increased content of cellulose in wood of trees growing in both greenhouse and outside in comparison with the control untransformed line Pt. The accelerated growth was observed also in the transgenic line Xeg-1-1c. Thicker cell-wall and longer xylem fiber were also observed in both these transgenic lines. Undescribed earlier considerable reduction in the wood decomposition rate of the transgenic aspen stems was also revealed for the transformed transgenic lines. The decomposition rate was approximately twice as lower for the transgenic line Xeg-2-3b in comparison with the control untransformed line Pt. CONCLUSION: A direct dependence of the phenotypic and biochemical traits on the expression of the recombinant gene sp-Xeg was demonstrated. The higher was the level of the sp-Xeg gene expression, the more pronounced were changes in the phenotypic and biochemical traits. All lines showed phenotypic changes in the leave traits. Our results showed that the plants carrying the recombinant sp-Xeg gene do not demonstrate a decrease in growth parameters in semi-natural conditions. In some transgenic lines, a change in the carbohydrate composition of the wood, an increase in the cell wall thickness, and a decrease in the rate of decomposition of wood were observed. #610: Aspen; Gene expression level; Penicillium canescens; Populus tremula; Transgenic; Xyloglucanase

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Издание

Журнал: BMC plant biology

Выпуск журнала: Vol. 20, Is. 1

Номера страниц: 251

Издатель: NLM (Medline)

Авторы

  • Vidyagina E.O. (Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki 6, Pushchino, 142290, Russian Federation)
  • Subbotina N.M. (Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki 6, Pushchino, 142290, Russian Federation)
  • Belyi V.A. (48%Syktyvkar%167000%Russian Federation)
  • Lebedev V.G. (Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki 6, Pushchino, 142290, Russian Federation)
  • Krutovsky K.V. (3Moscow 119991%Russian Federation%Laboratory of Forest Genomics%Genomic Research and Education Center%Institute of Fundamental Biology and Biotechnology%Siberian Federal University%Krasnoyarsk%660036%Russian Federation%Department of Ecosystem Sciences and Management%Texas A&M University%TX%College Station%United States)
  • Shestibratov K.A. (Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospect Nauki 6, Pushchino, 142290, Russian Federation)

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