BIO Web Conf.
Volume 25, 2020International Scientific Online-Conference “Bioengineering in the Organization of Processes Concerning Breeding and Reproduction of Perennial Crops” 2020
|Number of page(s)||6|
|Section||The Fundamental Basis of Breeding and Improving of Horticultural Crops and Grape Varieties|
|Published online||01 October 2020|
Cortical photosynthesis as a physiological marker for grape breeding: methods and approaches
Institute of Basic Biological Problems, FRC PSCBR RAS, Pushchino, Moscow Region, 142290, Russia
* Corresponding author: email@example.com
Photosynthesis occurring in chlorenchymal tissues of lignified branches of perennial plants (cortical photosynthesis) has a significant impact on their productivity and resistance to adverse environmental conditions, such as water deficiency and low temperatures. Cortical photosynthesis occurring under the outer bark of a lignified grape vine can become a convenient marker for breeding freeze-tolerant varieties. The following approaches can be undertaken to assess the functional state of the cortical photosynthetic apparatus: (1) analysis of the variable chlorophyll fluorescence parameters and (2) biochemical analysis of photosynthetic membrane preparations. To evaluate these approaches, in this work we have carried out the comparative analysis of characteristics of the cortical photosynthetic apparatus in grape varieties differing in freeze tolerance.
This work was supported by grant №18-04-00079 from the Russian Foundation for Basic Research.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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