Effects of a Daily Short-Term Temperature Drop on Chilling-Sensitive and Cold-Resistant Plants
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A set of physiological and biochemical parameters (leaf growth rate, plant biomass, chlorophyll content, rates of photosynthesis and transpiration, relative water content, leakage of electrolytes, lipid peroxidation intensity, and leaf cold tolerance) were examined with the example of typical cold-resistant (wheat, Triticum aestivum L.) and chilling-sensitive (cucumber, Cucumis sativus L.) plants subjected daily to a short-term temperature drop (DROP treatments) under controlled environmental conditions. For comparison, the plant responses to prolonged chilling were studied with the same species. To accomplish these aims, the cucumber and wheat plants were subjected to: (a) continuous (round-the-clock) cooling at 4°C (wheat), 9°C (cucumber), and 12°C (wheat and cucumber); (b) short-term (3 h) daily cooling to the same temperatures at the end of night periods over 6 days. Although cold-resistant and chilling-sensitive plants showed quantitatively and qualitatively different responses during and after long-term cooling, the plant responses to DROP treatments were qualitatively similar and differed only in their extent depending on cooling temperature. The DROP treatments retarded linear growth of plant organs in both chilling-sensitive and cold-resistant species. They also induced a range of favorable physiological changes promoting plant capability of adaptation. Specifically, photosynthetic rates in DROP-treated plants at chilling temperatures were higher than in untreated plants. In addition, DROP treatments improved the plant chilling tolerance.
Keywords:Cucumis sativus Triticum aestivum growth gas exchange chilling tolerance
The research was carried out using the equipment of the Core Facility of the Karelian Research Center of the Russian Academy of Sciences under state order (project no 0221-2017-0051).
COMPLIANCE WITH ETHICAL STANDARDS
The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.
- 1.Genkel', P.A. and Kushnirenko, S.V., Kholodostoikost’ rastenii i termicheskie sposoby ee povysheniya (Plant Cold Resistance and Thermal Methods to Increase It), Moscow: Nauka, 1966.Google Scholar
- 3.Titov, A.F., Talanova, V.V., Akimova, T.V., and Topchieva, L.V., Ustoichivost’ rastenii v nachal’nyi period deistviya neblagopriyatnykh temperatur (Plant Tolerance in the Initial Period of Unfavorable Temperatures Action), Moscow: Nauka, 2006.Google Scholar
- 5.Jones, H.G., Plant and Microclimate: A Quantitative Approach to Environmental Plant Physiology, Cambridge: Cambridge Univ. Press, 2014.Google Scholar
- 9.Moe, R. and Heins, R.D., Thermo- and photomorphogenesis in plants, in Advances in Floriculture Research, Rep. no. 6, Strømme, E., Ed., Oslo: Norw. Agricult. Univ., 2000, pp. 52–64.Google Scholar
- 10.Markovskaya, E.F., Sysoeva, M.I., and Sherudilo, E.G., Kratkovremennaya gipotermiya i rastenie (Short-Term Hypothermia and Plant), Petrozavodsk: Karel. Nauch. Tsentr, Ross. Akad. Nauk, 2013.Google Scholar
- 14.Ikkonen, E.N., Shibaeva, T.G., and Titov, A.F., The role of light in cucumber plant response to a diurnal short-term temperature drop, J. Stress Physiol. Biochem., 2017, vol. 13, pp. 35–44.Google Scholar
- 15.Shibaeva, T.G., Sherudilo, E.G., and Titov, A.F., Reaction of thermophilic and cold resistant plants to daily short-term temperature drops, Vseros. nauch. konf. “Fundamental’nye i prikladnye problemy sovremennoi eksperimental’noi biologii rastenii” (Proc. All-Russia Sci. Conf. “Basic and Applied Problems of the Modern Experimental Biology of Plants”), Moscow, 2015, pp. 737–741.Google Scholar
- 21.Grishenkova, N.N. and Lukatkin, A.S., Determination of plant tissue resistance to abiotic stresses using the conductometric method, Povolzh. Ekol. Zh., 2005, no. 1, pp. 3–11.Google Scholar
- 22.Saltveit, M.E., Discovery of chilling injury, in Discovery of Plant Biology, Kung, S.D. and Yang, S.F., Eds., Singapore: Word Sci. Publ. Co., 2000, vol. 3, pp. 423–448.Google Scholar
- 25.Kreslavskii, V.D., Carpentier, R., Klimov, V.V., Murata, N., and Allakhverdiev, S.I., Molecular mechanisms for photosynthetic apparatus resistance to stress, Biol. Membr. (Moscow), 2007, vol. 24, pp. 195–217.Google Scholar
- 26.Öquist, G., Effects of low temperature on photosynthesis, Plant Cell Environ., 1983, vol. 6, pp. 281–300.Google Scholar
- 27.Franco, T., Effects of stressful and unstressful low temperature on vegetable crops: morphological and physiological aspects, Acta Hortic., 1990, vol. 287, pp. 67–76.Google Scholar
- 28.Levitt, J., Responses of Plants to Environmental Stresses: Chilling, Freezing and High Temperature Stresses, New York: Academic, 1980.Google Scholar