Influence of Osmotic, Salt, and Combined Stress on Morphophysiological Parameters of Chenopodium quinoa Photosynthetic Organs

Nina V. Terletskaya (), Malika Erbay, Aigerim N. Zorbekova, Maria Yu Prokofieva, Luizat T. Saidova and Aigerim Mamirova
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Nina V. Terletskaya: Faculty of Biology and Biotechnology and Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Al-Farabi 71, Almaty 050040, Kazakhstan
Malika Erbay: Faculty of Biology and Biotechnology and Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Al-Farabi 71, Almaty 050040, Kazakhstan
Aigerim N. Zorbekova: Faculty of Biology and Biotechnology and Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Al-Farabi 71, Almaty 050040, Kazakhstan
Maria Yu Prokofieva: K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Science, 127276 Moscow, Russia
Luizat T. Saidova: K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Science, 127276 Moscow, Russia
Aigerim Mamirova: Faculty of Biology and Biotechnology and Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Al-Farabi 71, Almaty 050040, Kazakhstan

Agriculture, 2022, vol. 13, issue 1, 1-17

Abstract: Chenopodium quinoa Willd. is an annual facultative halophytic pseudocereal widely studied for its physiology and grain yield owing to its great tolerance to unfavorable growing conditions. However, the morphophysiological and anatomical characteristics of plants’ photosynthetic organs under various and combined abiotic stresses during the early stages of development have not been thoroughly studied. Therefore, the current study compared the influence of osmotic, salt, and combined stress at different intensities on the morphology and anatomy of photosynthetic organs in young quinoa plants. The main findings demonstrate that salt stress at an intensity between 100 and 200 mM NaCl is not critical for the growth of young quinoa plants and that the young plants can withstand salt stress at an intensity of 300 mM NaCl. However, it can be concluded that some adaptation mechanisms of the plants were already violated at a salt stress intensity of 200 mM NaCl, while significant changes in the water balance of the plants were observed at an intensity of 300 mM NaCl, possibly caused by damage to the cell structures.

Keywords: Chenopodium; abiotic stress; morphophysiology; anatomy; ion balance (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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