Impact of Suboptimal Temperature on Growth, Photosynthesis, Leaf Pigments and Carbohydrates of Domestic and High-altitude Wild Lycopersicon Species

Venema, Jan Henk; Posthumus, Freek; Hasselt, Philip R. van

doi:10.1016/s0176-1617(99)80087-x

Cited by 67 publications

(66 citation statements)

References 36 publications

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“…Wild tomato species are known to grow in the Andes Mountains at a high altitude (up to 2800 m above sea level) and at lower temperatures as surveyed e.g. by Venema et al (1999) and Nakazato et al (2010). Due to this fact we expected higher resilience to temperature changes in S. chmielewskii and S. habrochaites, compared to the S. lycopersicum cv.…”

Section: Heat Shock Protein 70 Gene Expression and Protein Levelmentioning

confidence: 93%

Effect of extreme temperatures on powdery mildew development and Hsp70 induction in tomato and wild Solanum spp.

Kubienová¹,

Sedlářová²,

Vítečková-Wünschová³

et al. 2013

Plant Prot. Sci.

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Kubienová L., Sedlářová M., Wünschová A., Piterková J., Luhová L., Mieslerová B., Lebeda A., Navrátil M., Petřivalský M. Changes in Hsp70 gene expression and protein level were studied in three Solanum spp. genotypes in response to short-term high and low temperatures and to infection by powdery mildew. Development of Oidium neolycopersici was compared on plant leaves and leaf discs with regard to the influence of temperature. Heat and especially cold pretreatment of host tissues inhibited pathogenesis and decreased chlorophyll concentration. Exposure to heat increased Hsp70 (70 kDa heat shock proteins) content in all three genotypes of Solanum spp., whereas the infection induced the accumulation of Hsp70 only in susceptible S. lycopersicum. These results are in accordance with the suggested role of Hsp70 chaperons in plant responses to metabolic pathway disturbances triggered by pathogen challenge.

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Section: Heat Shock Protein 70 Gene Expression and Protein Levelmentioning

confidence: 93%

Effect of extreme temperatures on powdery mildew development and Hsp70 induction in tomato and wild Solanum spp.

Kubienová¹,

Sedlářová²,

Vítečková-Wünschová³

et al. 2013

Plant Prot. Sci.

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“…To evaluate the effect of freezing on the functionality of the PSII reaction centers, the maximum quantum yield of the PSII photochemistry was measured by the ratio of variable (F v ) to maximal (F m ) chlorophyll fluorescence in a dark-adapted state (Butler and Kitajima, 1975;Venema et al, 1999). Chlorophyll fluorescence was measured with a hand-held portable pulse amplitudemodulated fluorometer (model OS-30p; Opti Sciences) on the youngest, fully expanded leaves of similar developmental stage from all treatments (nonchilled control, nonacclimated chilled, and acclimated chilled).…”

Section: Potted Seedlingsmentioning

confidence: 99%

Increasing ω-3 Desaturase Expression in Tomato Results in Altered Aroma Profile and Enhanced Resistance to Cold Stress

et al. 2010

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One of the drawbacks in improving the aroma properties of tomato (Solanum lycopersicum) fruit is the complexity of this organoleptic trait, with a great variety of volatiles contributing to determine specific quality features. It is well established that the oxylipins hexanal and (Z)-hex-3-enal, synthesized through the lipoxygenase pathway, are among the most important aroma compounds and impart in a correct proportion some of the unique fresh notes in tomato. Here, we confirm that all enzymes responsible for the synthesis of these C6 compounds are present and active in tomato fruit. Moreover, due to the low odor threshold of (Z)-hex-3-enal, small changes in the concentration of this compound could modify the properties of the tomato fruit aroma. To address this possibility, we have overexpressed the v-3 fatty acid desaturases FAD3 and FAD7 that catalyze the conversion of linoleic acid (18:2) to linolenic acid (18:3), the precursor of hexenals and its derived alcohols. Transgenic OE-FAD tomato plants exhibit altered fatty acid composition, with an increase in the 18:3/18:2 ratio in leaves and fruits. These changes provoke a clear variation in the C6 content that results in a significant alteration of the (Z)-hex-3-enal/hexanal ratio that is particularly important in ripe OE-FAD3FAD7 fruits. In addition to this effect on tomato volatile profile, OE-FAD tomato plants are more tolerant to chilling. However, the different behaviors of OE-FAD plants underscore the existence of separate fatty acid fluxes to ensure plant survival under adverse conditions.

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“…These features suggest that in winter Caulerpa racemosa is more sensitive to high light values, probably in relation to a higher harvesting pigment content. Another explanation might be that the lowest temperature in winter, implying a lower rate of enzymatic reactions involved in the dark step of photosynthesis (Vanema et al 1999) and in the enzymatic process of repair (Kyle 1987, Aro et al 1990, Calberg et al 1992, might determine photo-oxidative damage also at a low light intensity.…”

Section: Winter and Summer Comparisonsmentioning

confidence: 99%

Photosynthetic plasticity of an invasive variety of Caulerpa racemosa in a coastal Mediterranean area: light harvesting capacity and seasonal acclimation

Raniello¹,

Lorenti²,

Brunet³

et al. 2004

Mar. Ecol. Prog. Ser.

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At the beginning of the 1990s a new strain of Caulerpa racemosa began to spread rapidly throughout most of the Mediterranean Sea. Genetic investigations suggested this new variety could be a recent hybrid between the var. turbinata-uvifera, already present in the Mediterranean basin, and an unknown tropical strain. In summer, the season of maximal biomass development, C. racemosa frequently compete with seagrasses. Laboratory experiments based on the construction of P versus E curves and pigment analysis demonstrated the high capacity of this alga to reorganise its photosynthetic apparatus in relation to the available light under the canopy of a Cymodocea nodosa meadow. Using the same methodological approach, we also investigated the adaptive capacity of the var. occidentalis to winter environmental conditions, certainly the most critical for a tropical seaweed. Although maintenance metabolism was also suggested by a remarkable biomass decrease, C. racemosa var. occidentalis showed acclimation capacities. The ability of the alga to adapt to different light environments may contribute to its colonisation success in Mediterranean coastal biotopes.

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Impact of Suboptimal Temperature on Growth, Photosynthesis, Leaf Pigments and Carbohydrates of Domestic and High-altitude Wild Lycopersicon Species

Cited by 67 publications

References 36 publications

Effect of extreme temperatures on powdery mildew development and Hsp70 induction in tomato and wild Solanum spp.

Effect of extreme temperatures on powdery mildew development and Hsp70 induction in tomato and wild Solanum spp.

Increasing ω-3 Desaturase Expression in Tomato Results in Altered Aroma Profile and Enhanced Resistance to Cold Stress

Photosynthetic plasticity of an invasive variety of Caulerpa racemosa in a coastal Mediterranean area: light harvesting capacity and seasonal acclimation

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