A comparison of the effects of drought on proline accumulation and peroxidases activity in leaves of Festuca rubra L. and Lolium perenne L.

Bandurska, Hanna; Jóźwiak, Weronika

doi:10.5586/asbp.2010.015

Cited by 26 publications

(21 citation statements)

References 52 publications

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“…YS-1L and YS-2L had much lower MDA contents during the water stress period than ZY1, MXLK, ALLT and 87341. A similar trend was observed by many researchers (Fazeli et al 2007;Lu et al 2008;Moussa & Abdel-Aziz 2008;Bandurska & Jozwiak 2010). All of them showed that YS-1Li is the most drought tolerant genotype of wheat species investigated in this study.…”

Section: Discussionsupporting

confidence: 91%

Assessment of drought tolerance of some Triticum L. species through physiological indices

A¹,

Li²,

Yang³

et al. 2012

CZECH J GENET PLANT

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Abstract:Wheat is one of the most important crops in the world. Its yield is greatly influenced by global climate change and scarcity of water in the arid and semi-arid areas of the world. So, exploration of gene resources is of importance to wheat breeding in order to improve the crop ability of coping with abiotic stress environment. Wild relatives of wheat are rich repositories of beneficial genes that confer tolerance or resistance not only to drought but also to other environmental stresses. In the present study, the changes in leaf relative water content (RWC), free proline content, and malondialdehyde (MDA) accumulation of five wild wheat species including T. boeticum (YS-1L), T. dicoccum var. dicoccoides (YS-2L), T. araraticum (ALLT), and two cultivated varieties of T. turgidum ssp. durum (MXLK and 87341), with two well-known common wheat cultivars (SH6 and ZY1) possessing strong drought resistance and sensitiveness, respectively, as references were investigated during 3-day water stress and 2-day recovery, in order to assess the drought tolerance of these wild wheat species. The laboratory experiment was conducted under two water regimes (stress and non-stress treatments). Stress was induced to hydroponically grown two weeks old wheat seedlings with 20% PEG 6000. Stress treatment caused a much smaller decrease in the leaf RWC and rise in MDA content in YS-1L compared to the other wheat species. From the data it was obvious that YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions. The order of water stress tolerance of these species according to the three parameters is: YS-1L > YS-2L > SH6 > 87341 > ZY1 > MXLK > ALLT. We speculate that the observed drought stress tolerance at a cellular level was associated with the ability to accumulate proline and high water level conservation.

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Section: Discussionsupporting

confidence: 91%

Assessment of drought tolerance of some Triticum L. species through physiological indices

A¹,

Li²,

Yang³

et al. 2012

CZECH J GENET PLANT

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“…On the other hand, individual varieties of Lolium were characterized by variable levels of proline accumulation in the four investigated periods, without a clear trend (Table ). The accumulation of free proline under drought conditions in forage grasses was confirmed by many authors (Bokhari and Trent , Bandurska and Jóźwiak , Man et al. ).…”

Section: Discussionsupporting

confidence: 59%

Mild Drought Stress‐Induced Changes in Yield, Physiological Processes and Chemical Composition in Festuca, Lolium and Festulolium

Fariaszewska

Aper²,

Huylenbroeck³

et al. 2016

J Agronomy Crop Science

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The impact of mild drought stress (3 weeks at 40 % field water capacity) on yield, physiological processes, accumulation of proline and phenolic compounds and forage quality parameters in forage grasses was evaluated in pot experiments. During four different growing periods, the effects of water deficit were assessed in nine varieties from five species (Lolium perenne, Lolium multiflorum, Festuca pratensis, Festuca arundinacea and Festulolium braunii). All measured parameters were affected by drought stress in the different cuts. Photosynthesis, transpiration rate, stomatal conductance and dry matter yield were significantly lower in drought stress than under well-watered conditions in all varieties. Higher wateruse efficiency was only observed during the first and fourth drought period, while this was not the case in the second and third. Mild drought stress significantly increased the content of proline, phenolic acid, flavonoids, water-soluble carbohydrates and protein. All tested grasses showed also an increase of organic matter digestibility and cell wall digestibility under drought stress conditions.

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“…Drought turned out to be the most detrimental abiotic stress that limited crop yield by as much as 30-80% [45]. Scientists and breeders are gradually improving crop plant genotypes in terms of drought tolerance using both traditional selection methods and genetic engineering [26,34]. However, tolerance to drought stress is a complex feature, and finding suitable phenotypes requires time-consuming exposure of plants to simultaneously or sequentially occurring stress factors in natural conditions.…”

Section: Discussionmentioning

confidence: 99%

Variation Among Spring Wheat (Triticum aestivum L.) Genotypes in Response to the Drought Stress. II—Root System Structure

Grzesiak

Hordyńska

Maksymowicz

et al. 2019

Plants

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(1) Background: The study analyzed wheat morphological traits to assess the role of roots structure in the tolerance of drought and to recognize the mechanisms of root structure adjustment to dry soil environment. (2) Methods: Root-box and root-basket methods were applied to maintain an intact root system for analysis. (3) Results: Phenotypic differences among six genotypes with variable drought susceptibility index were found. Under drought, the resistant genotypes lowered their shoot-to-root ratio. Dry matter, number, length, and diameter of nodal and lateral roots were higher in drought-tolerant genotypes than in sensitive ones. The differences in the surface area of the roots were greater in the upper parts of the root system (in the soil layer between 0 and 15 cm) and resulted from the growth of roots of the tolerant plant at an angle of 0–30° and 30–60°. (4) Conclusions: Regulation of root bending in a more downward direction can be important but is not a priority in avoiding drought effects by tolerant plants. If this trait is reduced and accompanied by restricted root development in the upper part of the soil, it becomes a critical factor promoting plant sensitivity to water-limiting conditions.

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A comparison of the effects of drought on proline accumulation and peroxidases activity in leaves of Festuca rubra L. and Lolium perenne L.

Cited by 26 publications

References 52 publications

Assessment of drought tolerance of some Triticum L. species through physiological indices

Assessment of drought tolerance of some Triticum L. species through physiological indices

Mild Drought Stress‐Induced Changes in Yield, Physiological Processes and Chemical Composition in Festuca, Lolium and Festulolium

Variation Among Spring Wheat (Triticum aestivum L.) Genotypes in Response to the Drought Stress. II—Root System Structure

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