Impact of moderate heat stress on the biochemical and physiological responses of the invasive waterweed Elodea canadensis (Michx. 1803)

Savicka, Marina; Petjukevičs, Aleksandrs; Batjuka, Anna; Škute, Nataļja

doi:10.2298/abs180119016s

Cited by 4 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carotenoids have central functions in plants and are essential for photosynthesis and photoprotection [35]. Furthermore, carotenoids influence many plant processes and as antioxidants they can protect photosynthetic organisms against oxidative stress [36]. The amounts of carotenoids in the control A. imbricata plant were 0.281 mg/g FW on day 1, and 0.373 mg/g FW on day 9 [37]; the amount of carotenoids in the control A. caroliniana plant was 26.7 μg/g FW [14].…”

Section: Discussionmentioning

confidence: 99%

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Kösesakal

Yıldız

2019

Arch biol sci (Beogr)

View full text Add to dashboard Cite

This study aimed to evaluate the growth performance, pigment content changes, essential amino acids (EAAs), fatty acids (FAs), and proximate composition of Azolla pinnata and Azolla caroliniana grown in a greenhouse. Plants were grown in nitrogen-free Hoagland's solution at 28±2°C/21±2°C, day/night temperature and 60-70% humidity and examined on the 3 rd , 5 th , 10 th and 15 th days. The mean percentage of plant growth and relative growth rate for A. pinnata were 119% and 0.148 gg-1 day-1 , respectively, while for A. caroliniana these values were 94% and 0.120 gg-1 day-1 , respectively. Compared to day 3, the amount of total chlorophyll obtained on day 15 decreased significantly (p<0.05) for A. pinnata while the total phenolic and flavonoid contents increased significantly (p<0.05) from the 3 rd to the 15 th day. However, the total phenolic and flavonoid contents did not differ (p>0.0.5) in A. caroliniana. The crude protein, lipid, cellulose, ash values and the amounts of EAAs were higher in A. pinnata than A. caroliniana. Palmitic acid, oleic acid, and lignoceric acid were found to be predominant in A. pinnata and A. caroliniana. From the plant growth and pigment contents, we concluded that A. pinnata grew faster than A. caroliniana and its photosynthetic efficiency was more effective.

show abstract

Section: Discussionmentioning

confidence: 99%

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Kösesakal

Yıldız

2019

Arch biol sci (Beogr)

View full text Add to dashboard Cite

show abstract

“…A decrease in their activity with exposure to high temperatures may indicate that these plants are sensitive to high temperature exposure (Almeselmani et al, 2009). It should be noted that, in general, the response of enzymes to unfavorable exposure depends on the initial level of enzyme activity, which, in turn, is determined by the physiological state of the plant (Savicka et al, 2018). Thus, the variability in enzymatic and nonenzymatic antioxidants could be useful for breeding genotypes tolerant to a number of factors that can cause stress to plant cultivation.…”

Section: Introductionmentioning

confidence: 99%

Activity and isoenzyme content of ascorbate peroxidase in wheat genotypes (Triticum aestivum L.) under heat stress conditions

2022

IMBB

View full text Add to dashboard Cite

Wheat is a major cereal crop and considered a source of basic calories and protein for more than 80% of the world population. Heat is the major abiotic stress limiting wheat production. Antioxidant enzymes play a key role in the elimination of reactive oxygen species at elevated temperatures and play an important role in the tolerance of wheat to heat stress. İn this purpose the impact of rising temperature on wheat production is gaining concern worldwide. The activity and isoenzyme content of ascorbate peroxidase (APX), in the leaves of four bread wheat genotypes (tolerant genotypes Zirva 85 and Murov 2, stress-sensitive genotypes Gyzyl bugda and Aran), have been studied under conditions of short-term heat stress. Elevated temperatures lead to visible changes in enzyme activity. Heat stress caused a significant increase in APX activity in tolerant genotype Zirva 85. Polyacrylamide gel electrophoresis (PAGE) showed 7 isoforms of APX. Short-term heat stress caused an increase in the intensity of isoform staining in tolerant genotypes Zirva 85 and Murov 2.

show abstract

Antioxidant enzymes activity and membrane thermostability in durum wheat genotypes under heat stress

2022

View full text Add to dashboard Cite

Relevance. Insufficient tolerance to extremely high temperatures is one of the main reasons for the decline in crop yields.Methods. Two contrasting durum wheat genotypes (Triticum durum Desf.) were used in the present study: Barakatli 95 (tolerant genotype) and Garagylchyg 2 (stress-sensitive genotype). The activity of antioxidant enzymes, ascorbate peroxidase (APO), catalase (CAT), guaiacolperoxidase (GPO), and benzidine peroxidase (BPO), were studied spectrophotometrically. The membrane thermostability was determined by the release of electrolytes from intact plant tissue.Results. It was revealed that guaiacolperoxidase plays a key role in the elimination of reactive oxygen species when exposed to high temperatures, since a significant increase in the activity of this enzyme was observed during short-term thermal stress. Heat stress caused a slight decrease in catalase activity and a significant decrease in the activity of ascorbate peroxidase and benzidine peroxidase. An increase in total protein concentration was observed under heat stress. The indicators of the electrolyte leakage from leaf tissues confirm the variety-specific thermostability of wheat membranes. The membrane damage rate (MDR) increased in direct proportion to the heating temperature and showed the highest value in the sensitive Garagylchyg 2 variety. According to the electrolyte leackage parameters from leaf tissues during hyperthermia, was concluded variety-specific thermal stability of wheat plant membranes.

show abstract

Impact of moderate heat stress on the biochemical and physiological responses of the invasive waterweed Elodea canadensis (Michx. 1803)

Abstract: Impact of moderate heat stress on the biochemical and physiological responses of the invasive waterweed Elodea canadensis (Michx.

Cited by 4 publications

References 39 publications

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Growth performance and biochemical profile of Azolla pinnata and Azolla caroliniana grown under greenhouse conditions

Activity and isoenzyme content of ascorbate peroxidase in wheat genotypes (Triticum aestivum L.) under heat stress conditions

Antioxidant enzymes activity and membrane thermostability in durum wheat genotypes under heat stress

Contact Info

Product

Resources

About