Photosynthesis-dependent physiological and genetic crosstalk between cold acclimation and cold-induced resistance to fungal pathogens in triticale ( Triticosecale  Wittm.)

Szechyńska‐Hebda, Magdalena; Wąsek, Iwona; Gołębiowska-Pikania, Gabriela; Dubas, Ewa; Żur, Iwona; Wędzony, Maria

doi:10.1016/j.jplph.2014.12.017

Cited by 27 publications

(23 citation statements)

References 54 publications

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“…The fungicides used so far against M. nivale are very harmful to the environment and not sufficiently effective [6][7][8]. Only cold-hardening is regularly reported to induce increased resistance against pink snow mould [4,5,[9][10][11][12][13][14], but its effect is genotype-dependent.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, several antioxidant enzymes such as superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.11.1.6) and ascorbate peroxidase (APX, EC 1.11.1.11) were documented to facilitate cereal survival during both cold [20][21][22][23][24][25][26] and pathogen infection [9,10,27,28]. The oxygen scavenging systems activated by cold-hardening play a key role in enhancing cold tolerance [29], especially those in chloroplasts and mitochondria, the major sites of ROS production in plant cells [30,31].…”

Section: Introductionmentioning

confidence: 99%

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The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

Gawrońska

Gołębiowska-Pikania

2016

Eur Food Res Technol

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

Gawrońska

Gołębiowska-Pikania

2016

Eur Food Res Technol

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“…Both, our earlier studies and the work of others [2,7,[13][14][15], have led to the hypothesis that spatially controlled heterogeneity in the chain length and configuration of cellulose and lignin can influence the biochemical and mechanical resistance of the cell wall. Therefore, purpose of the present study was to clarify the role of the cell wall components and their stability in the cold-induced resistance of triticale seedlings to the fungal pathogen Microdochium nivale.…”

Section: Introductionmentioning

confidence: 94%

“…The proportion of cellulose, lignin and other polysaccharides may change, when the suboptimal temperature, limited water availability and light modulation affect plant growth and development [2,7,8]. Therefore, abiotic and biotic stresses are often physiologically interrelated and can induce similar responses at the level of cell wall.…”

Section: Introductionmentioning

confidence: 99%

Cold-induced changes in cell wall stability determine the resistance of winter triticale to fungal pathogen Microdochium nivale

Szechyńska‐Hebda

Hebda

Mirek

et al. 2016

J Therm Anal Calorim

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The exposure of winter triticale to cold promotes genotype-dependent resistance to fungal pathogen. We present the evidence that structural and chemical modifications of the cell wall components induced by cold can be correlated with the resistance against fungal infection. Our results showed that cellulose of hardened triticale cv. Hewo (able to develop resistance after cold treatment) has more compact and integrated structure, thicker and longer fibres when compared to cv. Magnat (susceptible to fungal infection despite plant hardening). Such structure of cellulose limits water sorption, favours stronger bonding the water of crystallisation to macromolecules, impedes depolymerisation process during decomposition, and finally results in higher thermal stability of cell wall. Furthermore, the lignin composition is drastically modified in resistant plants. Pattern of the thermal decomposition indicates higher molecular mass and more complex structure of lignin, followed by the higher thermal stability. We conclude that specific structure of lignocellulosic cell wall of the resistant plants forms a barrier for fungal enzymes digesting host tissue as well as can resist better the mechanical pressure of hyphae.

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“…Дослідники звертають увагу на зв'язок електричних сигналів із процесами дихання та фотосинтезу (Gallé et al, 2015). Процеси фотосинтезу, в яких ключовими датчиками темряви та зміни інтенсивності світла в широкому діапазоні температур вважаються хлоропласти, тісно пов'язані з акліматизацією до холодових впливів (Szechyńska-Hebda and Karpiński, 2013;Szechyńska-Hebda et al, 2015). Наявні дані про зв'язок термоіндукованих варіаційних потенціалів із фотосинтезом, зокрема, за низької освітленості (Surova et al, 2016).…”

Section: вступunclassified

Effect of external lighting on biopotential of maize leaves caused by pulsed temperature stimulation

Motsnyj

Botsva

Elina

et al. 2017

Regul. Mech. Biosyst.

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Study of electrophysiological indicators of the condition and behavior of plants has become more important in the development of farming activities and the search for effective ways to improve the productivity of crops. The influence of external light on the adaptive ability of corn leaf cells to rhythmic cold stimulation was determined experimentally. The method of rhythmic cold stimulation is not adequate for the studied plants, but its application allows us to evaluate the stability of plant cells to external stimuli. The method consists in repeating irritation during the time period of less duration than the relative refractory phase, which causes a response of less than the previous amplitude. Because of this in the system there is a negative feedback that leads to stabilization of the amplitude of biopotentials that are registered. Rhythmic cold stimulation was applied to the leaf with the help of a quick-response thermostimulator. Rhythm cold stimuli and settings of pulses were set by computer software. Cooling temperature was controlled using miniature differential thermocouple. Potentials of the leaf surface was diverted by an unpolarized macroelectrode and after a preamplifier fed to the input of the USB oscilloscope connected to the computer. Analysis of the results of experiments was performed using automated developed software. As a result, we experimentally established that rhythmic stimulation of leaves by cold leads to stabilization of responding potential. The level of stabilization depends on the frequency of cold stimuli and describes the adaptive properties of the system causing the biopotential. We found that the absence of photosynthesis when there is a deficit outdoor lighting leads to a significant increase in the average level of stabilized responses, indicating increased stability of the system to external influences. The maximum of this increase fell on the fourth day. This increase is likely to be due to the restructuring of functional ion transport through cell membranes, generating potentials registered. In the interval 4-9th days there was a significant decrease in stabilization, probably due to adaptation of plant cells to a lack of light, or depletion of ATP, which provides the active transport of ions across the cell membrane.

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Photosynthesis-dependent physiological and genetic crosstalk between cold acclimation and cold-induced resistance to fungal pathogens in triticale ( Triticosecale Wittm.)

Cited by 27 publications

References 54 publications

The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

Cold-induced changes in cell wall stability determine the resistance of winter triticale to fungal pathogen Microdochium nivale

Effect of external lighting on biopotential of maize leaves caused by pulsed temperature stimulation

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