The effect of abiotic stresses on carbohydrate status of olive shoots (Olea europaea L.) under in vitro conditions

Rejšková, Alžběta; Patková, Lenka; Stodůlková, Eva; Lipavská, Helena

doi:10.1016/j.jplph.2005.09.011

Cited by 78 publications

(48 citation statements)

References 32 publications

(35 reference statements)

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“…Total soluble carbohydrates are important solutes that are synthesized and accumulated in cytosol under salt stress. Thus, they are necessary for the survival of the plant because they are a source of carbon and energy (Rejskova et al 2007;Krasensky & Jonak 2012). In our study, the presence of NaCl in the medium also induces an increase in total soluble sugars contents.…”

Section: Discussionsupporting

confidence: 53%

Superoxide dismutase isozyme activity and antioxidant responses of hydroponically cultured Lepidium sativum L. to NaCl stress

Manaa

Mimouni

Terras

et al. 2013

Journal of Plant Interactions

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The present study was focused to assess the physiological behavior and antioxidant responses of the medicinal plant Lepidium sativum L. (commonly called Garden cress) subjected hydroponically to NaCl stress during its vegetative growth stage. The results showed that the addition of NaCl to growth medium significantly reduced plant growth. The magnitude of the response was also linked to the plant organ considered and NaCl concentration supplemented to the medium. Tissue hydration seemed unaffected by salinity. Reduction in dry weight (DW) production was associated with a high accumulation of Na + and Cl − and a significant reduction of K + content in shoots. The accumulation of osmoregulatory compounds (proline and total sugars) in shoots and roots was greatly increased by NaCl. Activity staining of antioxidants after a native polyacrylamide gel electrophores (PAGE) showed four superoxide dismutase (SOD) isozymes in the extract of leaf-soluble proteins (one Mn-SOD, two Fe-SODs, and one CuZn-SOD), and three isoforms in roots (Mn-SOD, Fe-SOD, and CuZn-SOD). Four peroxidase (POD) isozymes in the roots and only one isozyme in the leaves were detected. The work demonstrated that activities of antioxidant defense enzymes changed in parallel with the increased salinity. In summary, these findings proved that L. sativum can be classified as a moderately tolerant plant to salinity.

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Section: Discussionsupporting

confidence: 53%

Superoxide dismutase isozyme activity and antioxidant responses of hydroponically cultured Lepidium sativum L. to NaCl stress

Manaa

Mimouni

Terras

et al. 2013

Journal of Plant Interactions

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show abstract

“…Within a local pool of genotypes, variation in leaf size and shape should be indicative of environmental adaptation with small, elongated leaves being better adapted to dry, high radiation environments (Abrams et al, 1990), and large leaves being indicative of less dry environments and possibly faster growth. In addition, the ability to accumulate mannitol, and in part glucose, in olive leaves may increase tolerance to drought and salinity (Gucci et al, 1998;Xyloiannis et al, 1999), low winter temperatures (Rejšková et al, 2007), or even provide additional protection against oxidative stress (Lo Bianco, Losciale, Manfrini, & Corelli Grappadelli, 2011). Therefore, genotypes of cluster 1 should be more tolerant to abiotic stress than those of cluster 3.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Sicilian Olive Genotypes by Multivariate Analysis of Leaf and Fruit Chemical and Morphological Properties

Bianco¹,

Panno²,

Avellone³

2013

JAS

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Leaf and fruit size and shape were measured and mannitol, glucose, sucrose and malic acid were quantified in leaf, bark and fruit of 25 Sicilian olive genotypes. Multivariate analysis was used to individuate groups with similar chemical composition and morphological traits suggesting potential for stress tolerance and/or oil yield and quality. Mannitol content varied greatly among genotypes and was the most abundant carbohydrate in leaf and bark, whereas glucose was the most abundant in fruit. Sucrose and malic acid were generally low indicating a marginal role in olive tissues. Mannitol and glucose were directly related in both leaf and fruit tissues. Genotypes also differed for carbohydrate partitioning among tissues, and multivariate analysis individuated a group of seven genotypes associated to leaf length:width, length:area, glucose, mannitol, and sucrose, which should stand for environmental stress tolerance. Multivariate analysis also individuated a group of six genotypes associated to malic acid, oleic acid, oleic:linoleic, and polyphenols, and therefore showing potential for production of high quality and stable olive oil. Overall, three of the 25 genotypes in trial seem to combine a good degree of abiotic stress tolerance with production of high quality and stable olive oil.

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“…En cultivos de Olea europaea resultaron adecuadas concentraciones de hasta 9% de manitol y sacarosa (Rejšková et al 2007). Mientrás que en Piper aduncum y Piper hispidinervum, la adición de manitol produjo sobrevivencia entre el 0-50 % de la sobrevivencia de brotes (Silva & Scherwinski 2011).…”

Section: Enraizamientounclassified

“…La variabilidad de respuestas mencionadas en las distintas especies con respecto al manitol y sorbitol, se pueden deber a que estos compuestos cumplen dos roles uno como agentes osmóticos, limitando la disponibilidad de agua y nutrientes lo cual resulta en un lento crecimiento (Gollagunta et al 2005;Rejšková et al 2007;Gopal & Chayhan 2010;Lata et al 2010;Nogueira et al 2014) o la muerte de los tejidos (Cordeiro et al 2014); y en otras especies que producen naturalmente manitol puede resultar que al inicio actúe como un agente osmótico con un efecto menor y luego como una fuente de carbono y energía debido a que se absorben lentamente y se metaboliza con facilidad, por tanto su función en estas especies como agente osmótico es a corto plazo . Esto ha sido observado en el cultivo de Olea europea con un significativo incremento del crecimiento y proliferación de brotes (García et al 2002;Conde et al 2011).…”

Section: Enraizamientounclassified

Conservación de plantas regeneradas in vitro y análisis de la variación somaclonal de Cinchona officinalis, Linneo

González¹

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The effect of abiotic stresses on carbohydrate status of olive shoots (Olea europaea L.) under in vitro conditions

Cited by 78 publications

References 32 publications

Superoxide dismutase isozyme activity and antioxidant responses of hydroponically cultured Lepidium sativum L. to NaCl stress

Superoxide dismutase isozyme activity and antioxidant responses of hydroponically cultured Lepidium sativum L. to NaCl stress

Characterization of Sicilian Olive Genotypes by Multivariate Analysis of Leaf and Fruit Chemical and Morphological Properties

Conservación de plantas regeneradas in vitro y análisis de la variación somaclonal de Cinchona officinalis, Linneo

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