Proline and Antioxidant Enzyme Activities in Some Strawberry Cultivars under Drought and Recovery

This study examines the molecular effects of drought and recovery applications on four strawberry (Fragaria × ananassa Duch) cultivars known as relatively heat-tolerant [‘Redlands Hope’ (‘R. Hope’) and ‘Camarosa’] and heat-sensitive [‘Festival’ and ‘Cal. Giant-3’ (‘CG-3’)]. After frigo seedlings were grown in a greenhouse for eight weeks (until they had five-six leaves) in a pot, 10% Poliethyleneglycol 6000 (PEG) was applied in order to compose drought condition for 15 days. Following PEG application, plants were watered without PEG for 15 days to observe the recovery. Leaf relative water content (RWC), loss of turgidity, cell membrane injury, proline content and the activities of ascorbate peroxidase (APX, EC 1.1.11.1), glutathione reductase (GR, EC 1.6.4.2) and peroxidase (PRX, EC 1.11.1.7) were determined in leaf tissues taken from plants at the end of the drought and recovery applications. Although membrane injury was increased by the PEG application, it reduced almost to the control levels at the end of the recovery period. Proline contents were found higher in cvs. ‘R. Hope’ and ‘Camarosa’ than cvs. ‘Festival’ and ‘CG-3’ under drought conditions. APX and GR enzymes showed great activities in drought applied plants of heat-tolerant cultivars. Native polyacrylamide gel electrophoresis (PAGE) of basic PRX isozymes yielded three protein bands with Rf = 0.45, Rf = 0.55 and Rf = 0.60 that were sharply increased their activities by PEG and recovery applications in cvs. ‘R. Hope’ and ‘Camarosa’. In addition, leaves of all cultivars exposed to drought rolled up and had brown colour in various level as an indication of tolerance. Indeed ‘Camarosa’ and ‘R. Hope’ showed better recovery performance after rewatering than ‘Festival’ and ‘CG-3’. All data indicated that heat-tolerant cultivars showed relatively drought tolerance in this study

Poisoining with Tricyclic Antidepressants and Current Treatment

Poisoning with tricyclic antidepressants is one of the main causes of morbidity and mortality compared to all the antidepressants. Main toxic effects are on the cardiovascular system and central nervous system and manifests itself as anticholinergic symptoms. There is no antidote known to be used in the treatment. But sodium bicarbonate treatment is effective in preventing ventricular arrhythmias and hypotension, and resolving metabolic acidosis. There are some treatments that has been used for relief of symptoms and some of them still are in research stage. The drugs that are used can be customized according to the patients symptoms. [Archives Medical Review Journal 2016; 25(4.000): 608-621

Therapeutic Hypothermia

It is agreed that early application of therapetic hypotehermia to cardiac arrest patients prevents the chemical reactions occured with reperfusion injury and contributes and prevents the neurologic injury. In this review we tried to discuss the thepeutic hypothermia using areas in the emergency department and intensive care under the light of the last literatures. [Archives Medical Review Journal 2011; 20(1.000): 20-35

The assessment of the behavior of nanoparticles in environmental systems for sustainable development

WOS: 000209805600612

Heat-stress Tolerance of Some Strawberry (Fragaria × ananassa) Cultivars

Physiological parameters were used to investigate genotypic variations in 15 strawberry cultivars [‘Aromas’, ‘Camarosa’, ‘Carmine’, ‘Cal. Giant 3’ (CG3), ‘Cal. Giant 5’ (CG5), ‘Elsanta’, ‘Fern’, ‘Festival’, ‘Honeoye’, ‘Kabarla’, ‘Redlands Hope’ (R.Hope), ‘Ruby Gem’, ‘Selva’, ‘Sweet Charlie’ and ‘Whitney’] and their relationship to heat-stress tolerance (HST). Cold stored (frigo) strawberry seedlings were grown in pots for six weeks and then transferred to a growth chamber. The temperature in the growth chamber was increased stepwise from 35 to 40, 45 and 50°C to create a heat-stressed environment. Leaf relative water content (RWC), loss of turgidity and chlorophyll content were measured at each temperature. The ‘Elsanta’ and ‘R.Hope’ had the highest RWC, while the ‘Festival’ and ‘CG3’ had the lowest. However, ‘Elsanta’ and ‘R.Hope’ had the lowest loss of turgidity, while ‘Festival’ and ‘CG3’ had the highest. ‘Elsanta’ and ‘R.Hope’ showed the lowest chlorophyll content, and ‘CG3’ and ‘Whitney’ had the highest. To determine HST (LT50), leaf discs of each cultivar were exposed to 35, 40, 45, 50, 55 and 60°C. A considerable decrease in the LT50 was observed with increasing temperature in all cultivars. The LT50 of the cultivars ranged from 51.8 to 52.9°C. Based on the data collected, ‘Elsanta’, ‘R. Hope’ and ‘Camarosa’ were determined to be relatively heat-tolerant cultivars, while ‘Whitney’, ‘Fern’, ‘Festival’ and ‘CG3’ were heat-sensitive cultivars. </p

Heat-stress Tolerance of Some Strawberry (Fragaria × ananassa) Cultivars

Physiological parameters were used to investigate genotypic variations in 15 strawberry cultivars [‘Aromas’, ‘Camarosa’, ‘Carmine’, ‘Cal. Giant 3’ (CG3), ‘Cal. Giant 5’ (CG5), ‘Elsanta’, ‘Fern’, ‘Festival’, ‘Honeoye’, ‘Kabarla’, ‘Redlands Hope’ (R.Hope), ‘Ruby Gem’, ‘Selva’, ‘Sweet Charlie’ and ‘Whitney’] and their relationship to heat-stress tolerance (HST). Cold stored (frigo) strawberry seedlings were grown in pots for six weeks and then transferred to a growth chamber. The temperature in the growth chamber was increased stepwise from 35 to 40, 45 and 50°C to create a heat-stressed environment. Leaf relative water content (RWC), loss of turgidity and chlorophyll content were measured at each temperature. The ‘Elsanta’ and ‘R.Hope’ had the highest RWC, while the ‘Festival’ and ‘CG3’ had the lowest. However, ‘Elsanta’ and ‘R.Hope’ had the lowest loss of turgidity, while ‘Festival’ and ‘CG3’ had the highest. ‘Elsanta’ and ‘R.Hope’ showed the lowest chlorophyll content, and ‘CG3’ and ‘Whitney’ had the highest. To determine HST (LT50), leaf discs of each cultivar were exposed to 35, 40, 45, 50, 55 and 60°C. A considerable decrease in the LT50 was observed with increasing temperature in all cultivars. The LT50 of the cultivars ranged from 51.8 to 52.9°C. Based on the data collected, ‘Elsanta’, ‘R. Hope’ and ‘Camarosa’ were determined to be relatively heat-tolerant cultivars, while ‘Whitney’, ‘Fern’, ‘Festival’ and ‘CG3’ were heat-sensitive cultivars. </p

Heat-stress Tolerance of Some Strawberry (Fragaria x ananassa) Cultivars

WOS: 000320141300034Physiological parameters were used to investigate genotypic variations in 15 strawberry cultivars ['Aromas', 'Camarosa', 'Carmine','Cal. Giant 3' (CG3), 'Cal. Giant 5' (CG5), 'Elsanta', 'Fern', 'Festival', 'Honeoye', 'Kabarla', 'Redlands Hope' (R.Hope), 'Ruby Gem', 'Selva', 'Sweet Charlie' and 'Whitney'] and their relationship to heat-stress tolerance (HST). Cold stored (frigo) strawberry seedlings were grown in pots for six weeks and then transferred to a growth chamber. The temperature in the growth chamber was increased stepwise from 35 to 40,45 and 50 degrees C to create a heat-stressed environment. Leaf relative water content (RWC), loss of turgidity and chlorophyll content were measured at each temperature. The 'Elsanta' and 'R.Hope' had the highest RWC, while the 'Festival' and 'CG3' had the lowest. However, 'Elsanta' and 'R.Hope' had the lowest loss of turgidity, while 'Festival' and 'CG3' had the highest. 'Elsanta' and 'R.Hope' showed the lowest chlorophyll content, and 'CG3' and 'Whitney' had the highest. To determine HST (LT50), leaf discs of each cultivar were exposed to 35, 40, 45, 50, 55 and 60 degrees C. A considerable decrease in the LT50 was observed with increasing temperature in all cultivars. The LT50 of the cultivars ranged from 51.8 to 52.9 degrees C. Based on the data collected, 'Elsanta', 'R. Hope' and 'Camarosa' were determined to be relatively heat-tolerant cultivars, while 'Whitney', 'Fern', 'Festival' and 'CG3' were heat-sensitive cultivars.The Scientific and Technological Research Council of Turkey (TUBITAK-TOVAG)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [108 O 063]This research was supported by a grant from The Scientific and Technological Research Council of Turkey (TUBITAK-TOVAG, 108 O 063). We thank Yaltir A.S (Adana, Turkey) for supplying the strawberry seedlings

Proteins in strawberry plants (Fragaria x ananassa Duch.) under heat stress

WOS: 000209805600059