Effects of Excess Magnesium on the Growth and Mineral Content of Rice and <i>Echinochloa</i>

Kobayashi, Hidekazu; Masaoka, Yoshikuni; Sato, Setsuro

doi:10.1626/pps.8.38

Cited by 25 publications

(24 citation statements)

References 11 publications

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“…Moreover, photosynthetic capacity was decreased by accumulation over 1.2% per plant (494 µmol g −1 ) of Mg (Rao et al 1987). Also, concentration of Ca in leaf was decreased by excess Mg (Shimada 1972;Ushijima et al 2004;Kobayashi et al 2005). However, maximum concentration of Mg in needles was 188 µmol g −1 for P. jezoensis (data not shown), and concentration of Ca in needles of P. jezoensis and P. abies in serpentine nursery was not decreased (Table 2).…”

Section: Discussionmentioning

confidence: 99%

“…A high Mg concentration may lead to substitution of extra-cellular Ca by Mg via mass action, altering cell wall stability and plasma membrane permeability (Marschner 1995). Root growth and uptake of Ca are inhibited by excess Mg (Shimada 1972;Ushijima et al 2004;Kobayashi et al 2005). Moreover, excess Mg is accumulated in mitochondria of roots, and activities of various enzymes are inhibited (Shimada 1972).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of growth characteristics and tolerance to serpentine soil of three ectomycorrhizal spruce seedlings in northern Japan

Kayama

Choi

Tobita

et al. 2006

Trees

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1 2Picea glehnii is distributed widely on serpentine soils in northern Japan. Serpentine 3 soil is characterised by the presence of heavy metals (Ni, Cr) and excessive Mg; these 4 elements often suppress plant growth. We have examined the tolerance to serpentine 5 soil and its effects on growth of P. glehnii, P. jezoensis (distributed in the same region) 6and P. abies (planted for timber production). 7The dry mass of each organ was not reduced in P. glehnii planted in serpentine soil 8 contained nursery (serpentine nursery). In contrast, growth of P. jezoensis and P. abies 9 was suppressed. Concentrations of Ni and Mg in needles and roots of P. glehnii planted 10 in serpentine nursery were the lowest of the three species. Moreover, the 11 photosynthetic rate of P. glehnii planted in the serpentine nursery was not reduced. P. 12 glehnii has high capability to maintain low concentration of Ni, and ectomycorrhizal 13 symbiosis may have a positive effect to excluding Ni. As a result, P. glehnii has a high 14 tolerance against Ni toxicity, and its photosynthetic capacity is not suppressed by 15 accumulation of Ni. 16 17

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of growth characteristics and tolerance to serpentine soil of three ectomycorrhizal spruce seedlings in northern Japan

Kayama

Choi

Tobita

et al. 2006

Trees

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“…parachinensis seed was unable to germinate in 100 mM MgCl 2. Kobayashi et al (2005) also reported MgCl 2 concentration as low as 0.03 M have been shown to reduce growth in rice and three species of Echinochloa. Tobe et al (2003) reported that the toxicity of Mg 2+ is several times stronger that Na + on Artemisia ordosia, A. adscensionis and Bassia dasyphylla.…”

Section: Discussionmentioning

confidence: 86%

The effects of NACL, KCL and MGCL2 on the germination of Brassica rapa var. parachinensis seed

Ghanad

Nulit²,

Go³

et al. 2016

IJBR

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This study was conducted to determine seed germination on the mechanisms of salinity stress in B. rapa var. parachinensis (Hong kong choy sum). The type of experiment was a completely randomized design with three salinity treatment NaCl, MgCl2, and KCl and minimum four replications was used. Salinity treatment consisted of 0 (control), 50, 100, 150, 200, mM concentrations. The experiment was carried out under 70% relative humidity at 23°C with a photoperiod of 8:16 h light/dark. The germinated seeds were counted every day and germination percentage, seed vigor, seed tolerance, length of seedling and biomass seedling was measured. The data were analyzed by one-way ANOVA multiple comparison test followed by Duncan's multiple range test.

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“…This phenomenon could also provide an explanation for the onset of chlorosis in the 0.01 M MgCl 2 treatment in the final week of the growth cycle. The negative effects of high MgCl 2 concentrations have also been demonstrated on other plant species (Kobayashi et al, 2005).…”

Section: Discussionmentioning

confidence: 93%

“…Increased salinity has been reported in ground water 100 m from roadways and vegetation damage has been reported as far as 200 m from roads (Ramakrishna and Viraraghavan, 2005). MgCl 2 concentrations as low as 0.03 M have been shown to reduce growth in rice and three species of Echinochloa (Kobayashi et al, 2005). While higher concentrations of MgCl 2 may be harmful to plant growth and viability, the magnesium ion is particularly important in higher plant physiology (Shabala and Hariadi, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effect of MgCl<sub>2</sub> on Germination, Growth and Biomass Allocation of the Radish CV. "Cherry Belle"

Brandenburg¹

2011

American Journal of Environmental Sciences

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Problem statement:To determine the effect of MgCl 2 on radish (Raphanus sativus), plants were grown in controlled environmental growth chambers and given one of three watering treatments; 0.01, 0.1 and 0 M (control) MgCl 2 . Approach: At high concentrations (0.1 M), MgCl 2 was toxic resulting in very low (44%) germination rates and the subsequent death of all but three undersized plants over the 28 day growth period. Results: At lower concentrations (0.01 M), MgCl 2 resulted in enhanced germination rates (5.55%) and a mass increase (39.54%) over the control. Conclusion/Recommendations: While low concentrations of MgCl 2 resulted in an increase in total biomass, biomass allocation was shifted largely from roots to shoots (55.88% higher root/shoot ratio in the control).

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Effects of Excess Magnesium on the Growth and Mineral Content of Rice and Echinochloa

Cited by 25 publications

References 11 publications

Comparison of growth characteristics and tolerance to serpentine soil of three ectomycorrhizal spruce seedlings in northern Japan

Comparison of growth characteristics and tolerance to serpentine soil of three ectomycorrhizal spruce seedlings in northern Japan

The effects of NACL, KCL and MGCL2 on the germination of Brassica rapa var. parachinensis seed

Effect of MgCl<sub>2</sub> on Germination, Growth and Biomass Allocation of the Radish CV. "Cherry Belle"

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