Differential effect of NaCl and polyethylene glycol on the ultrastructure of chloroplasts in rice seedlings

Yamane, Koji; Kawasaki, Michio; Taniguchi, Masaru; Miyake, Hiroshi

doi:10.1078/0176-1617-00948

Cited by 68 publications

(55 citation statements)

References 5 publications

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“…Besides, the level of F v /F m ratio could be strongly dependent on the length of the MJ treatment (Jung 2004). In our experiment, the decrease in the F v /F m for MJ1Cu100, 50 lM Cu and 100 lM Cu could indicate damage to chloroplasts, especially thylakoid membranes (Yamane et al 2003), induction of photoinhibition processes (Maxwell and Johnson 2000), or reversible inactivation rather than photodamage of PSII (Demmig-Adams et al 2012).…”

Section: Discussionmentioning

confidence: 89%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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Phaseolus coccineus plants in the early growth stage were preincubated with 10 -5 M methyl jasmonate (MJ) for 1 or 24 h and subsequently transferred to a Hoagland solution or treated with 50 or 100 lM copper (Cu). After 6-day exposure to the metal, plant growth, relative water content, electrolyte leakage, the content of Cu and photosynthetic pigments, and chlorophyll fluorescence parameters were assayed. Generally, under Cu excess, MJ did not modulate growth parameters such as leaf area, root growth, shoot and root fresh weight, and the shoot/root fresh weight ratio. The content of chlorophyll a, b, and carotenoids increased with the increasing Cu content in the leaves. However, a correlation between the reduction of the leaf area and the lower content of the three photosynthetic pigments for 24-h MJ ? 100-lM Cu treatment compared with metal alone was noted. The decrease in the Cu concentration was MJ-dependent only after 1-h MJ ? 50-lM Cu treatment in leaves and after 24-h MJ ? 100-lM Cu treatment in roots. Chlorophyll fluorescence was a weak indicator of the effect induced by MJ in Cu excess, and the most spectacular increase was observed for 1-h and 24-h MJ ? 50 lM Cu in the LNU and for 1-h MJ ? 50 lM Cu in the NPQ parameter. These results suggested a lack of a clear pattern for MJ altering the Cu stress in the runner bean plants. The most important finding was that photosynthesis seemed to be quite resistant to Cu stress and slight modifications in chlorophyll fluorescence were accompanied by significant changes in growth parameters, photosynthetic pigment content, and metal content in the plant. The results obtained may have been strongly related to the plant growth stage, as the measured parameters transform greatly during plant growth and development.

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Section: Discussionmentioning

confidence: 89%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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“…The decline in productivity observed in several plant species under salt distress is commonly associated with reduction in the photosynthetic capacity. Although the factors that limit photosynthesis in salt stressed plants are unclear, the effect of salinity stress on a number of species is quite evident and have been investigated in the past few years by several research groups worldwide (Yamane et al, 2003;Liu & Shen, 2006;Jimenez et al, 1997;Meloni et al, 2003;Lin et al, 2007;Zribi et al, 2009;Mehta et al, 2010).…”

Section: Salinity Stressmentioning

confidence: 99%

Abiotic Stress Diagnosis via Laser Induced Chlorophyll Fluorescence Analysis in Plants for Biofuel

Gouveia‐Neto¹,

Silva-Jr²,

Cunha³

et al. 2011

Biofuel Production-Recent Developments and Prospects

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“…Thus, reduction in chlorophyll content and in the maximum potential quantum efficiency of PSII, measured as changes in chlorophyll fluorescence (F v /F m ) is related to the salinity-induced swelling and distortion of thylakoids, grana stacking, stroma and chloroplast envelope (Barhoumi et al 2007;Rahman et al 2000;Wang et al 2009;Yamane et al 2003Yamane et al , 2008. Therefore, these parameters are referred as efficient indicators for the evaluation of stress related effects on photosystem II (PSII) (Baker 2008;Netondo et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice

et al. 2012

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The complex nature of plant resistance to adverse environmental conditions, such as salinity and drought requires a better understanding of the stress-induced changes that may be involved in tolerance mechanisms. Here we investigate stress-related morpho-physiological effects during vegetative and reproductive growth in two Japonica rice cultivars (Bomba and Bahia) exposed to a range of NaCl concentrations from the seedling stage. The stress-related detrimental effects were observed either earlier or to a higher extent in cv. Bomba than in Bahia. Damages to the photosynthetic apparatus were related to loss of chlorophyll (Chl) and to a decrease of the maximum potential efficiency of PSII (F v /F m ), affecting negatively net CO 2 assimilation rate (P N ). Stress-related leaf anatomical alterations were analysed during the vegetative and reproductive stages. The size of bulliform cells as well as dimensions related to the vascular system increased under mild stress but decreased in the longer term or under higher stress level. The pattern of the anatomical alterations observed at the reproductive stage under 20 mM NaCl was reflected in poor panicle development and yield loss, with effects more pronounced in cv. Bomba than in Bahia. In summary, our results show that some physiological and, particularly, leaf anatomical responses induced by NaCl stress are distinctive indicators of sensitivity to salt stress in rice cultivars.

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Differential effect of NaCl and polyethylene glycol on the ultrastructure of chloroplasts in rice seedlings

Cited by 68 publications

References 5 publications

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

Abiotic Stress Diagnosis via Laser Induced Chlorophyll Fluorescence Analysis in Plants for Biofuel

Morpho-physiological variations in response to NaCl stress during vegetative and reproductive development of rice

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