Association of High Light and Zinc Deficiency in Cold-induced Leaf Chlorosis in Grapefruit and Mandarin Trees

Çakmak, İsmail; Atli, M.; Kaya, Recep; Evliya, Hunay; Marschner, H.

doi:10.1016/s0176-1617(11)82068-7

Cited by 54 publications

(24 citation statements)

References 24 publications

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“…Superoxide dismutase (SOD) activity was determined by using the method proposed by Cakmak and Marschner (1992), and Cakmak (1994), based on the reduction of NBT (nitro blue tetrazolium chloride) by O 2 -under light. All the solutions were added into the reaction medium: first, 0.1 mM of Na-EDTA containing 50 mM (pH: 7.6) phosphate (P) buffer, then, the enzyme extract (25 to 100 µl) followed by 0.5 ml of 50 mM Na 2 CO 3 (pH of 10.2), 0.5 ml of 12 mM of L-methionine, 0.5 ml of 75 µm of p-nitro blue tetrazolium chloride (NBT) and Accepted paper 10 µm of riboflavin were each added into the medium so that the final volume of the medium was 5 ml.…”

Section: Superoxide Dismutase (Sod) Activitymentioning

confidence: 99%

“…Glutathione reductase (GR) activity was measured with the method proposed by Cakmak and Marschner (1992), and Cakmak (1994), based on the oxidation of NADPH at 340 nm (E = 6.2 mM cm −1 ). By following the method, the final volume of the reaction medium was adjusted to 1 ml by adding 0.1 mM of EDTA containing a 50-mM phosphor buffer (pH of 7.6), 0.1 ml of 0.5 mM of oxidized glutathione (GSSG), 0.1 ml of 0.12 mM of NADPH and enzyme extract into the medium, and then the NADPH oxidation was measured at 340 nm.…”

Section: Glutathione Reductase (Gr) Activitymentioning

confidence: 99%

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Morphological and biochemical changes in response to salinity in sunflower (Helianthus annus L.) cultivars

et al. 2018

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This study was conducted to evaluate the alterations of some morphological and biochemical parameters of sunflower cultivars ('08-TR-003', 'TR-3080' and 'TARSAN-1018') under salt stress. For this aim, the seedling of sunflower cultivars was irrigated with tap water as a control, and with salinized water with 50, 150 and 250 mM NaCl for 30 days under controlled conditions. Salinity caused an apparent reduction in morphological parameters (plant height, leaf area, fresh weight, dry matter and water content) in all cultivars. Salt stress significantly (P<0.01) reduced the activity of glutathione reductase (GR) and ascorbate peroxidase (APX) activities in all sunflower cultivars expect for superoxide dismutase (SOD) activity. According to our results, SOD seems to play a key role in the antioxidative process in salt treated sunflower plants. Proline and MDA contents were significantly (P<0.05) increased under salt stress in all cultivars. Among the cultivars, 'TR-3080' had greater values in terms of morphological (plant height, leaf area, fresh weight, water content) and biochemical (GR, APX and SOD (secondly) activities and proline contents) parameters. In the light of these findings, cv. 'TR-3080' seems to be less affected by salt stress.

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Section: Superoxide Dismutase (Sod) Activitymentioning

confidence: 99%

Section: Glutathione Reductase (Gr) Activitymentioning

confidence: 99%

Morphological and biochemical changes in response to salinity in sunflower (Helianthus annus L.) cultivars

et al. 2018

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“…The expression of Zn deficiency symptoms on the leaves of cereals has been found to be related to the activity of the enzyme copper (Cu)/Zn superoxide dismutase (Cu/ZnSOD) (Cakmak et al 1997(Cakmak et al , 1998Hacisalihoglu et al 2003). High levels of Cu/ZnSOD help protect leaf tissue against oxidative damage (Cakmak 2000) and thereby contribute to Zn efficiency (Cakmak et al 1995;Hacisalihoglu et al 2003). Wu et al (1999) located the chloroplast Cu/ZnSOD genes on the long arms of the group 7 chromosomes, but the exact location of the Cu/ZnSOD gene is not known.…”

Section: Kernel Weight Grain Zn and Fe Concentrationsmentioning

confidence: 99%

Quantitative trait loci analysis of zinc efficiency and grain zinc concentration in wheat using whole genome average interval mapping

et al. 2008

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Zinc (Zn) deficiency is a widespread problem which reduces yield and grain nutritive value in many cereal growing regions of the world. While there is considerable genetic variation in tolerance to Zn deficiency (also known as Zn efficiency), phenotypic selection is difficult and would benefit from the development of molecular markers. A doubled haploid population derived from a cross between the Zn inefficient genotype RAC875-2 and the moderately efficient genotype Cascades was screened in three experiments to identify QTL linked to growth under low Zn and with the concentrations of Zn and iron (Fe) in leaf tissue and in the grain. Two experiments were conducted under controlled conditions while the third examined the response to Zn in the field. QTL were identified using an improved method of analysis, whole genome average interval mapping. Shoot biomass and shoot Zn and Fe concentrations showed significant negative correlations, while there were significant genetic correlations between grain Zn and Fe concentrations. Shoot biomass, tissue and grain Zn concentrations were controlled by a number of genes, many with a minor effect. Depending on the traits and the site, the QTL accounted for 12-81% of the genetic variation. Most of the QTL linked to seedling growth under Zn deficiency and to Zn and Fe concentrations were associated with height genes with greater seedling biomass associated with lower Zn and Fe concentrations. Four QTL for grain Zn concentration and a single QTL for grain Fe concentration were also identified. A cluster of adjacent QTL related to the severity of symptoms of Zn deficiency, shoot Zn concentration and kernel weight was found on chromosome 4A and a cluster of QTL associated with shoot and grain Fe concentrations and kernel Plant Soil (weight was found on chromosome 3D. These two regions appear promising areas for further work to develop markers for enhanced growth under low Zn and for Zn and Fe uptake. Although there was no significant difference between the parents, the grain Zn concentration ranged from 29 to 43 mg kg −1 within the population and four QTL associated with grain Zn concentration were identified. These were located on chromosomes 3D, 4B, 6B and 7A and they described 92% of the genetic variation. Each QTL had a relatively small effect on grain Zn concentration but combining the four high Zn alleles increased the grain Zn by 23%. While this illustrates the potential for pyramiding genes to improve grain Zn, breeding for increased grain Zn concentration requires identification of individual QTL with large effects, which in turn requires construction and testing of new mapping populations in the future.

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“…It was reported that Zn treatments provided 5-550% increases in grain yields of wheat in different regions of Central Anatolia Region of Turkey (Cakmak et al, 1995). Besides, Kalaycı et al (1993) reported 50-60% increases in wheat and barley grain yields with soil Zn treatments.…”

Section: Effects Of Treatments On Grain Yieldmentioning

confidence: 98%

The Effect of Different Zinc Application Methods on Yield and Grain Zinc Concentration of Bread Wheat Varieties

Barut¹,

Şimşek²,

Irmak

et al. 2017

Turkish JAF Sci.Tech.

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This study was carried out to elucidate the impacts of zinc (Zn) treatments on growth, development, quality and yield of commonly sown bread wheat cultivars under field conditions of Çukurova Region. Three different bread wheat cultivars (Adana-99, Ceyhan-99 and Pandas) were experimented in randomized complete blocks-split plots experimental design with 3 replications. Field experiments were performed by two different Zn application methods; via soil and via soil+foliage. In the both trials, 0, 5, 10, 20, 30, and 40 kg ha -1 pure Zn doses were applied to the soil. 0.4% ZnSO 4 .7H 2 O solution was used for foliar Zn applications. Current findings revealed that Zn treatments had significant effects on grain yield, grain Zn concentration, grain phosphorus (P) concentration and thousand grain weight of bread wheat cultivars, but significant effects were not observed on grain protein concentrations. Soil+foliar Zn treatments were more effective in improving grain Zn concentrations. It was concluded that 10-20 kg ha -1 Zn treatment was quite effective on grain Zn concentrations.

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Association of High Light and Zinc Deficiency in Cold-induced Leaf Chlorosis in Grapefruit and Mandarin Trees

Cited by 54 publications

References 24 publications

Morphological and biochemical changes in response to salinity in sunflower (Helianthus annus L.) cultivars

Morphological and biochemical changes in response to salinity in sunflower (Helianthus annus L.) cultivars

Quantitative trait loci analysis of zinc efficiency and grain zinc concentration in wheat using whole genome average interval mapping

The Effect of Different Zinc Application Methods on Yield and Grain Zinc Concentration of Bread Wheat Varieties

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