Studies on differential response of wheat cultivars to boron toxicity

Kalaycı, M.; Alkan, A.; Çakmak, İsmail; Bayramoğlu, O.; Yılmaz, A.; Aydın, M. H.; Ozbek, V.; Ekiz, H.; Ozberisoy, F.

doi:10.1007/978-94-011-4896-2_25

Cited by 17 publications

(16 citation statements)

References 6 publications

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“…Significant differences in the responses of natural and cultivated plants with respect to their sensitivity to high B concentrations have been reported (Kalaycı et al 1998;Cervilla et al 2007). Resistance to B toxicity of different plant species was shown to be related to the ability of a tolerant variety to reduce the intracellular concentration of B by active efflux from the roots, thereby maintaining a lower root B concentration (Stangoulis et al 2001;Hayes and Reid 2004;Reid et al 2004).…”

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confidence: 97%

The effects of boron toxicity on root antioxidant systems of two chickpea (Cicer arietinum L.) cultivars

et al. 2008

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Significant differences in the antioxidant systems of the roots of two chickpea (Cicer arietinum L.) cultivars differing in tolerance to drought were observed in under toxic boron (B) conditions. Threeweek-old chickpea seedlings were subjected to 0.05 mM (control), 1.6 mM or 6.4 mM B in the form of boric acid (H 3 BO 3 ) for 7 days. At the end of the treatment period, root length, dry weight, boron concentration, malondialdehyde (MDA) content, and the activities of antioxidant enzymes-superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), ascorbate peroxidase (APOX) and glutathione reductase (GR)-were measured. Root length of the drought-tolerant Gökce cultivar did not change under 1.6 mM B but increased under 6.4 mM B. On the contrary, root length decreased in the droughtsensitive Küsmen cultivar under both B concentrations. While root dry weight was unaffected in Gökce, it decreased in Küsmen under both B concentrations. Boron concentration was significantly higher in Küs-men than in Gökce at both B levels. Significant increases in SOD and POX activities were observed in roots of both cultivars under 1.6 and 6.4 mM B. Root extracts exhibited three SOD and three POX activity bands in both cultivars under B stress when compared to control groups. Although CAT activity in Gökce was increased, it decreased in Küsmen at the highest B concentration as compared to control groups. Roots of both cultivars showed no significant change in APOX activity under B toxicity (except in 1.6 mM B treated roots of Küsmen) when compared to control groups. GR activity in the roots of Küsmen decreased significantly with increasing B concentration. However, a significant increase in GR activity was found in Gökce under 1.6 mM B stress. In addition, lipid peroxidation levels of drought-sensitive Küsmen increased, indicating more damage to membrane lipids due to B toxicity. Lipid peroxidation did not change in the drought-tolerant Gökce cultivar at either B concentration. These results suggest that roots of Gökce are better protected from B-stressinduced oxidative stress due to enhanced SOD, CAT and POX activities under high B levels.

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confidence: 97%

The effects of boron toxicity on root antioxidant systems of two chickpea (Cicer arietinum L.) cultivars

et al. 2008

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“…Karaman et al (2012) observed large genotypic variation among wheat genotypes to B toxicity. Variation of wheat varieties tolerance to B toxicity have been showed by others (Kalayci et al 1997;Furlani et al 2003;Torun et al 2006). Shoot and root B concentration increased significantly with increasing B levels and large variation in shoot and root B concentration observed in different wheat varieties.…”

Section: Discussionmentioning

confidence: 80%

“…B deficiency can be easily corrected but B toxicity is a major micronutrient disorder affecting yield of many crops especially cereals around the world (Kalayci et al 1997;Savić et al 2013). Excessive B in soil and irrigation water causes B toxicity in crops and more over it is a common nutritional problem in low rain fall and dry areas especially in alkaline soils of Australia, North Africa and West Asia (Nable et al 1997;Camacho-Cristóbal et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Using 70 durum wheat genotypes in a greenhouse experiment to study genotype variation to B toxicity Torun et al (2006) reported that dry matter production of all genotypes, except four, were markedly decreased by applied B. Kalayci et al (1997) concluded that the most B tolerant wheat cultivars were of local origin. Breeding accessions of barely from Iran and Afghanistan were the most tolerant among seven WANA countries (Yau 2002).…”

Section: Introductionmentioning

confidence: 99%

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Tolerance of some wheat varieties to boron toxicity

Nejad¹,

Savaghebi²,

Farahbakhsh³

et al. 2015

Cereal Research Communications

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Boron (B) toxicity is an important problem in low rainfall and highly alkaline soils of central and southern part of Iran. We evaluated B toxicity tolerance of 10 Iranian wheat varieties in a greenhouse experiment. Experimental design was factorial Completely Randomized Design (CRD) with 10 wheat varieties × six B levels (0, 2.5, 5, 10, 20 and 40 mg B kg -1 soil) in three replications. The results showed a great range of tolerance among wheat varieties. Arg was the most tolerant one and Chamran showed the least tolerance. It seems that different mechanisms involved in B toxicity tolerance, namely exclusion of B from root, redistribution of B within leaves and integration of these two mechanisms. Significant negative linear correlation observed between shoot B concentration and shoot dry weight (r = 0.85, p < 0.01) and positive linear correlation between shoot B concentration and shoot dry weight reduction percentage (r = 0.82, p < 0.01).

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“…This observation is in accordance with that of Taban and Erdal (2000), who also demonstrated in a similar genetic variance study as an example for B toxicity tolerance that durum wheat cultivars were affected from B toxicity more negatively than bread wheat cultivars. Kalayci et al (1998) reported that durum wheat cultivars were the most sensitive cultivars among 29 bread wheat and three durum wheat cultivars grown in a greenhouse experiment with and without the application of 40 mg kg −1 B.…”

Section: Discussionmentioning

confidence: 99%

Mannitol Application Alleviates Boron Toxicity in Wheat Seedlings

Coşkun

Olgunsoy

Karatas

et al. 2014

Communications in Soil Science and Plant Analysis

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Boron (B) toxicity is a considerable mineral nutritional problem for crop production in arid and semi-arid regions worldwide. The effect of mannitol (M) in wheat seedlings that are tolerant and sensitive to excessive B was studied to reduce B toxicity symptoms. Plants were grown in a peat with different concentrations of boric acid (0, 30, 45, 60 mg kg −1 ) and treated additionally with M (0, 1, 5, 10 g kg −1 ). Seedlings grown for 8 weeks were harvested for root length, shoot length, and dry-weight measurements and analyzed for B content of leaves. Compared with control groups (no boric acid treatment), B toxicity caused reductions in root length, shoot length, and dry weight of both wheat cultivars. Significant increases on growth parameters were observed under B treatments, the greatest with 1 g kg −1 M application in a tolerant bread cultivar. On the other hand, 10 g kg −1 M application under 60 mg kg −1 B treatment gave also good results on root length in a sensitive durum cultivar. Significant decreases in leaf B content were observed under B treatments with all M applications in both wheat cultivars, the greatest with 5 g kg −1 M application. The results suggest that M applications may have a possible role in overcoming in B toxicity in wheat grown in the field.

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Studies on differential response of wheat cultivars to boron toxicity

Cited by 17 publications

References 6 publications

The effects of boron toxicity on root antioxidant systems of two chickpea (Cicer arietinum L.) cultivars

The effects of boron toxicity on root antioxidant systems of two chickpea (Cicer arietinum L.) cultivars

Tolerance of some wheat varieties to boron toxicity

Mannitol Application Alleviates Boron Toxicity in Wheat Seedlings

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