Morphological and quantitative data of plastids and mitochondria within drought-stressed spinach leaves

Zellnig, Günther; Zechmann, Bernd; Perktold, Andreas

doi:10.1007/s00709-003-0034-2

Cited by 32 publications

(26 citation statements)

References 38 publications

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“…Drought affects plants' growth terribly (Kivimäenpää et 2001; Chartzoulakis et al, 2002;Zellnig et al, 2004;Villagra and Cavagnaro, 2006;Olmos et al, 2007). Also, it makes the root systems of plants develop more than the stem system in order to facilitate water absorption from soil.…”

Section: Morphological Physiological and Biochemical Responses Undermentioning

confidence: 99%

Plants responses to drought and shade environments

Kwon¹,

Woo²

2016

Afr. J. Biotechnol.

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Water and light are the most important environements for plants' growth. These environemts are critical factors needed not only for the survival of plants but also their production. When plants are exposed to drought condition, they change in their anatomical, physiological and biochemical properties. Drought affects plants wildly from their cell structure to growth. It causes higher plastoglobuli, lower starch grain, distortion of thylakoids, disrupted grana and swelling of chloroplast. Plants grown under enhanced light, have increased palisade parenchyma, thicker leaf, higher biomass, increased photosynthesis, lower contents of chlorophyll, carotenoid and nitrogen.

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Section: Morphological Physiological and Biochemical Responses Undermentioning

confidence: 99%

Plants responses to drought and shade environments

Kwon¹,

Woo²

2016

Afr. J. Biotechnol.

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“…Quantitative morphometric analysis provides a useful tool for converting the visual structural alterations into very informative numerical data (Zellnig et al 2004). Processed data showed that the responses of plants to individually applied stresses could not be simply summed to predict the outcome of their combined effects on wheat plants (Figure 4a-d and 5a,b).…”

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confidence: 99%

Drought, high temperature, and their combination affect ultrastructure of chloroplasts and mitochondria in wheat (Triticum aestivumL.) leaves

Grigorova

Vassileva

Климчук

et al. 2012

Journal of Plant Interactions

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Plants experience a number of limiting factors, as drought and heat, which are often coinciding stress factors in natural environment. This study evaluated the changes in mesophyll cell ultrastructure in the leaves of two varieties of winter wheat (Triticum aestivum L.), differing in their drought tolerance, under individual or combined drought and heat treatment. Although the individual stress factors affected leaf ultrastructure, the damaging effect of the combined drought and heat was more pronounced and manifested certain differences between genotypes. Chloroplasts and mitochondria were affected in a variety-specific manner under all adverse treatments. The organelles of the drought-tolerant Katya were better preserved than those in the sensitive variety Sadovo. Leaf ultrastructure can be considered as one of the important characteristics in the evaluation of the drought susceptibility of different wheat varieties.

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“…Mitochondria are also known to be highly flexible in shape, volume, and surface area and their variability is a response to changes in environmental conditions. The occurrence of differently formed mitochondria could be induced by stress parameters or could result from changes in the mitochondrial function [36]. Changes in mitochondria shape and deformation of outer mitochondrial membrane were observed after 48 h of salt stress in lupine embryo axes.…”

Section: Discussionmentioning

confidence: 98%

Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress

2013

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Embryo axes of lupine (Lupinus luteus L. 'Mister') were subjected to 0.1 M NaCl salt stress for 24 and 48 h. The ultrastructure modification and adjustment of antioxidant enzymes activities and izoenzymes profiles were observed. In cells of lupine embryo axes grown for 48 hours in medium with 0.1 M NaCl mitochondria took the forked shape and bulges of the outer mitochondrial membranes appeared. Moreover, the inflating and swelling of rough endoplasmic reticulum (RER) lumen and fragmentation of RER were noticed. The level of H 2 O 2 was higher in salt treated embryo axes after 24 hours and increase of thiobarbituric acid reactive substances was observed after both 24 and 48 h of salt treatment. Native gel electrophoresis showed increased intensities of bands for catalase isozymes in response to salt stress, whereas activity of catalase was higher only in embryo axes grown for 48 h in control conditions. Appearance of two new isoforms of ascorbate peroxidase was observed after 48 h only under control condition, however increased activities were stated for both control and salt-stress condition after 48 h. No changes in isozymes pattern for superoxide dismutase were observed, but significant decrease in superoxide dismutase activity was noticed in relation to time and salt stress. Possible role of these enzymes in salt stress tolerance is discussed. The 0.1 M salt stress is regarded as a middle stress for lupine embryo axes and the efficiency of stress prevention mechanisms is proposed. Keywords: salt stress, lupine, ultrastructure, antioxidantJournal homepage: pbsociety.org.pl/journals/index.php/asbp ORIGINAL RESEARCH PAPER Received: 2013.04.18 Accepted: 2013.09.26 Published electronically: 2013.11.12 Acta Soc Bot Pol 82(4):303-311 DOI: 10.5586/asbp.2013 Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress Łukasz Wojtyla*, Magda Grabsztunowicz, Małgorzata Garnczarska

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Morphological and quantitative data of plastids and mitochondria within drought-stressed spinach leaves

Cited by 32 publications

References 38 publications

Plants responses to drought and shade environments

Plants responses to drought and shade environments

Drought, high temperature, and their combination affect ultrastructure of chloroplasts and mitochondria in wheat (Triticum aestivumL.) leaves

Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress

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