Annual patterns of total soluble sugars and proteins related to coldhardiness in olive (<i>Olea europaea L.‘Gemlik</i>’)

Eri̇ş, A.; Gülen, Hatice; Barut, Erdoğan; Cansev, Asuman

doi:10.1080/14620316.2007.11512279

Cited by 33 publications

(40 citation statements)

References 31 publications

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“…Our present data are in good accord with a previous study from our laboratory demonstrating that the highest cold-hardiness coincided with winter resulting in an LT 50 (lethal temperature of 50% of plant tissues) of approximately -15 in leaves and approximately -17 in barks of olive 'Gemlik' (Eris et al, 2007). Moreover, the lowest cold-hardiness coincided with summer resulting in an LT 50 of approximately -7 in leaves and approximately -8 in barks (Eris et al, 2007). Freezing induces severe membrane damage in plants (Steponkus, 1984).…”

Section: Research Reportsupporting

confidence: 95%

“…Gemlik (Eris et al, 2007). In addition, we determined the differences in activities of CAT and APX enzymes in 9 olive genotypes in cold-acclimated (January) and non-acclimated (July) stages (Cansev et al, 2009).…”

Section: Research Reportmentioning

confidence: 99%

“…The samples were randomly collected from five to six trees and packed on ice to analyze. Samples were exposed to low temperatures according to the method of Arora et al (1992) with regarding to the modifications of Eris et al (2007) for olive. Middle part of the collected shoot pieces, 10-15 cm long, were wrapped in aluminum foil along with moistened paper and placed in manually-controlled low-temperature freezer (Arcelik, 2041D, Istanbul, Turkey).…”

Section: Research Reportmentioning

confidence: 99%

“…Freezing injury of leaf and bark tissues at each temperature was determined by measuring the electrolyte leakage as described previously by Eris et al (2007) for olive plants. Briefly, leaf discs in 1 cm diameter were cut from leaves while bark tissues with 1cm x 1cm sections were cut from the shoots.…”

Section: Research Reportmentioning

confidence: 99%

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The activities of catalase and ascorbate peroxidase in olive (Olea europaea L. cv. Gemlik) under low temperature stress

Cansev

Gülen

Eri̇ş

2011

Hortic. Environ. Biotechnol.

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In this study, one-year-old shoots of the olive (Olea europaea L.) cv. Gemlik were tested at artificial low temperatures (4, -5 , -10 , and -20 ) every month for two years. For low temperature treatment, the degree of cell membrane injury in leaves and barks was determined by ion leakage method. In addition, with regard to antioxidative defense mechanism, activities of catalase (CAT, EC 1.11.1.6) and ascorbate peroxidase (APX, EC 1.11.1.11) enzymes were determined. Leaf and bark tissues subjected to 4 and -5 injured to a limited extent in all months. However, more than 50% injury occurred by temperatures equal to or colder than -10 treatments depending on the season. For -10 and -20 treatments, the lowest and the highest injury in leaf and bark tissues were detected during winter and summer seasons, respectively. We determined in this study that CAT and APX enzyme activities are generally higher during fall and winter compared with those in summer. On the other hand, CAT and APX enzyme activities started increasing during fall along with a decreasing freezing injury while the activities of these enzymes decreased to some extent during winter when freezing injury was the lowest. In addition, while CAT activity decreased with low temperature treatments, APX activity did not change until -5 treatment but decreased with decreasing temperatures starting from -10 depending on the month the tissue was obtained. In conclusion, olive plant shows considerable tolerance to low temperatures that are achieved after daily gradual decreases by increasing cell membrane stability through complicated mechanisms including antioxidative enzyme metabolisms. In addition, APX may be more effective in maintaining cold-hardiness of olive compared with CAT.

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Section: Research Reportsupporting

confidence: 95%

Section: Research Reportmentioning

confidence: 99%

Section: Research Reportmentioning

confidence: 99%

Section: Research Reportmentioning

confidence: 99%

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The activities of catalase and ascorbate peroxidase in olive (Olea europaea L. cv. Gemlik) under low temperature stress

Cansev

Gülen

Eri̇ş

2011

Hortic. Environ. Biotechnol.

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“…Previous studies also showed that there is a correlation between some physiological and biochemical characteristics such as stomatal density (Roselli et al 1989), stomatal size (Roselli and Venora 1990), phenolic compounds (Roselli et al 1992), differential thermal analysis (Martin et al 1993), ionic leakage Azzarello et al 2009), fractal analysis (Azzarello et al 2009), impedance spectroscopy (Azzarello et al 2009), soluble sugars Bartolozzi et al 2001;Gulen et al 2009) and total soluble proteins (Eris et al 2007;Cansev et al 2009) with frost-tolerant in olive genotypes. Currently, interesting results to quantify cold tolerance have come from the study of some antioxidant enzymes (Solecka and Kacperska 2003;Cansev et al 2009;Ortega-García and Peragón 2009).…”

Section: Introductionmentioning

confidence: 90%

Olive (Olea europaea L.) freezing tolerance related to antioxidant enzymes activity during cold acclimation and non acclimation

et al. 2014

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The changes in the antioxidant enzymes activity, total protein and proline content and their correlations with freezing tolerance (FT) (expressed as LT 50 ) were investigated at 11 different olive cultivars at cold-acclimation (CA, in February) and non-acclimation (NA, in August) stages. Leaf samples were collected from each cultivar and were divided into two groups. The first group was immediately frozen in liquid nitrogen for further biochemical analysis. The second ones was subjected to different freezing temperatures (-5, -10, -15 and -20°C) for 10 h, in order to determine their FT. The unfrozen control samples were kept at 4°C. The results showed that Fishomi, Mission and Shengeh were the most freezing tolerant among other cultivars. In contrast, Zard, Manzanilla and Amigdalolia were the most sensitive ones. The cold acclimation enhanced the activities of superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), catalase (CAT), polyphenol oxidase (PPO) and total protein content. However, proline content and phenylalanine ammonia-lyase (PAL) activity did not change or even decreased slightly at CA stage, compare to those samples at NA stage. It was found that LT 50 to be closely correlated to POD, CAT, and PPO activity at CA and NA stages. Overall, higher leaf POD, CAT, and PPO activity could be used as important selection criteria in screening tolerant olive cultivars for cold zone climatic.

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The response of phenylalanine ammonia‐lyase, polyphenol oxidase and phenols to cold stress in the olive tree (Olea europaea L. cv. Picual)

Ortega-García

Peragón

2009

J Sci Food Agric

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BACKGROUND: In this study the activities of phenylalanine ammonia-lyase (PAL) and polyphenol oxidase (PPO) and the concentrations of hydroxytyrosol, tyrosol and oleuropein in olive tree (Olea europaea L. cv. Picual) leaves were investigated before and after cold stress by freezing. The air temperature fell to below −7• C and, according to the specific field conditions, four categories of orchard were selected: not cold stressed (NS), lightly cold stressed (LS), moderately cold stressed (MS) and heavily cold stressed (HS).

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Annual patterns of total soluble sugars and proteins related to coldhardiness in olive (Olea europaea L.‘Gemlik’)

Cited by 33 publications

References 31 publications

The activities of catalase and ascorbate peroxidase in olive (Olea europaea L. cv. Gemlik) under low temperature stress

The activities of catalase and ascorbate peroxidase in olive (Olea europaea L. cv. Gemlik) under low temperature stress

Olive (Olea europaea L.) freezing tolerance related to antioxidant enzymes activity during cold acclimation and non acclimation

The response of phenylalanine ammonia‐lyase, polyphenol oxidase and phenols to cold stress in the olive tree (Olea europaea L. cv. Picual)

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