Growth, Nutritional Status, Chlorophyll Content, and Antioxidant Responses of the Apple Rootstock MM 111 Shoots Cultured Under High Boron Concentrations In Vitro

Sotiropoulos, Thomas; Molassiotis, Athanassios; Almaliotis, D.; Mouhtaridou, G.N.; Dimassi, K.; Therios, Ioannis; Diamantidis, Grigorios

doi:10.1080/01904160500526956

Cited by 39 publications

(21 citation statements)

References 21 publications

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“…As a confirmation, in the present work, we observed increased MDA production associated with elevated activities of antioxidant enzymes (Table 2) and decreased K content at increased PEG concentrations (Table 3). Sotiropoulos et al (2006) also found that Fe deficiency in apple rootstock MM 111 under adverse environmental conditions could be a consequence of the decreased chlorophyll concentration, as was observed here in Gisela 5 (Table 1).…”

Section: ⎯⎯⎯⎯supporting

confidence: 51%

Response of the cherry rootstock to water stress induced in vitro

et al. 2008

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The in vitro response of sweet cherry (Prunus cerasus × P. canescens) rootstock Gisela 5 to increasing water deficit in the culture medium was studied. Water stress induced by the incorporation of 1, 2 and 4 % polyethylene glycol (PEG-8000) into the Murashige and Skoog medium was applied for 6 weeks. PEG-induced water stress reduced shoot dry mass, length, water content and relative chlorophyll content. Water stress also induced leaf necrosis without causing loss of viability in the explants. The increase in malondialdehyde content indicated oxidative stress. The activities of antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POX) and glutathione reductase (GR) were also significantly elevated. The concentrations of K, Ca, Fe and Mn of shoots were decreased.

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Section: ⎯⎯⎯⎯supporting

confidence: 51%

Response of the cherry rootstock to water stress induced in vitro

et al. 2008

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“…At low B levels, the defense capacity of cells is weakened due to oxidation of phenols generating reactive quinines and oxygen free radicals, which are highly toxic to protein and lipids in membranes. This is similar to observations of Sotiropoulos et al (2006) and Cervilla et al (2007) in tomato (Lycopersicom esculentum Mill.). High B levels generate production of superoxide (O 2 -) and hydroxyl peroxyl (HO 2 ) radicals, which undergo spontaneous dismutation to H 2 O 2 (Gunes et al, , accelerating the formation of hydroxyl radical (OH · ) through a Haber-Weiss reaction, causing lipid peroxidation (Mittler, 2002).…”

Section: Resultssupporting

confidence: 89%

Development and Physiological Response of Bittergourd to Boron Level

Sinha

Nautiyal

Khurana

2009

International Journal of Vegetable Science

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At some concentrations boron (B) is toxic to bittergourd (Momordica charantia L.).There is a need to determine how bittergourd responds to B concentration. Plants of cv. Jhalari were exposed to 0.003 to 3.3 mg·L −1 of B for 32 days in refined sand. Plants exhibited best growth and total biomass at 0.33 mg·L −1 of B. Visible B deficiency symptoms were observed in plants treated with 0.003 mg·L −1 of B at day 25 manifest as blackening of the growing tip, reduction in size of plants, development of necrotic areas in young leaves, and thickening of the lamina of mature leaves, which later became leathery and eventually brittle. Toxicity symptoms developed at 3.3 mg·L −1 of B and at d 21 margins of old leaves became chlorotic. Exposure to <0.33 and >0.33 mg·L −1 of B reduced total biomass, chlorophyll a and b, carotenoid, and proline contents and activity of catalase and enhanced activities of the antioxidant enzymes peroxidase, superoxidase dismutase, ascorbate peroxidase, and polyphenol oxidase in leaves. Lipid peroxidation decreased, and tissue B concentration increased with an increase in B supplied. Values for deficiency, threshold of deficiency, threshold of toxicity, and toxicity were 5.4, 8, 58, and 120 mg·g −1 dry matter, respectively, in young leaves of bittergourd, which could be helpful in predicting the B status of bittergourd under field conditions.

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“…At low B levels, the defense capacity of cells is weakened which might be due to oxidation of phenols generating reactive quinines and oxygen free radicals, which are highly toxic to protein and lipids in membranes. This is similar to observations of Sotiropoulos et al (2006) and Cervilla et al (2007) in tomato (Lycopersicon esculentum Mill. ).…”

Section: Discussionsupporting

confidence: 89%

“…Furthermore, B toxicity also resulted in increases in membrane permeability, and possible role of membrane integrity and structure in tolerance mechanism of B toxicity has been reported by Karabal et al (2003). Excess levels of B can induce oxidative stress, causing a change in some antioxidant and nucleolytic enzyme activities Sotiropoulos et al, 2006).…”

Section: Introductionmentioning

confidence: 95%

Oxidative Stress and Antioxidants in Cowpea Plants Subjected to Boron and High Irradiance Stresses

Michael

Muthuchelian

2012

Journal of Plant Nutrition

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The effects of boron (B) and high irradiance (HI) on the growth and activities of antioxidant enzymes have been investigated in cowpea plants (Vigna unguiculata L. Walp. 'P152'). A significant decrease in root and shoot lengths were observed in B-deficient (0 ppm) and B-excess (50 ppm) plants compared to B-sufficient (0.5 ppm) plants. Under B and B + HI stress, significant increase in membrane permeability (EC), lipid peroxidation (MDA) and hydrogen peroxide (H O ) were observed in B-deficient and B-excess leaves. Under B and B + HI stress, the superoxide dismutase (SOD) activity was found to be significantly high whereas the peroxidase (POX), polyphenol oxidase (PPO) activities and the non-enzymatic antioxidants, ascorbic acid and proline accumulation were found to be significantly decreased in B-deficient and B-excess leaves which showed the B inefficiency and susceptible nature of the cowpea plants to B and B + HI stress.

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Growth, Nutritional Status, Chlorophyll Content, and Antioxidant Responses of the Apple Rootstock MM 111 Shoots Cultured Under High Boron Concentrations In Vitro

Cited by 39 publications

References 21 publications

Response of the cherry rootstock to water stress induced in vitro

Response of the cherry rootstock to water stress induced in vitro

Development and Physiological Response of Bittergourd to Boron Level

Oxidative Stress and Antioxidants in Cowpea Plants Subjected to Boron and High Irradiance Stresses

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