Stress indications in copper- and nickel-exposed Scots pine seedlings

Kukkola, Eija; Rautio, Pasi; Huttunen, Satu

doi:10.1016/s0098-8472(99)00057-x

Cited by 72 publications

(33 citation statements)

References 44 publications

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“…The same phenomena on plants as a response to excess Ni were obtained in cabbage (MOLAS 1997) and in pine and birch (KUKKOLA, HUTTUNEN 1998;KUKKOLA et al 2000).…”

Section: Discussionsupporting

confidence: 64%

Relationship of leaf ultrastructure of mangrove Kandelia candel (L.) Druce to salt tolerance

Qiu¹,

Lin²,

Su³

2005

J. For. Sci.

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ABSTRACT:The leaf ultrastructure of mangrove Kandelia candel (L.) Druce planted in pots under different salinity conditions was compared under a transmission electron microscope (TEM). The results showed that the plasmalemma in plants grown in salinity conditions of 0‰ treatment (control) and 25‰ treatment was tightly combined, while in plants with salinity of 50‰ treatment, the plasmalemma crimpled remarkably and plasmolysis occurred. The nucleus and its two-layer membranes were obvious in control plants. In the case of 25‰ treatment, the membrane breakdown was observed, nucleoplasm dispersed in cytoplasm, and the electron density of cells was lower than that in control plants. In plants treated with 50‰ salinity the nucleus collapsed and no structure of the nucleus could be observed. As far as chloroplasts in control plants were concerned, they were oblong with a typical arrangement of grana and stroma thylakoids and one or two grains of starch. However, the chloroplasts in plants treated with 25‰ salinity were swelling and usually contained more grains of starch and few plastoglobuli. Most chloroplasts had a reduced number of grana, particularly of thylakoids in grana as compared with control plants. The chloroplasts of plants treated with 50‰ salinity had a considerably reduced system of grana and stroma thylakoids, and sometimes they were even deformed morphologically. They were mixed-up and contained more grains of starch and plastoglobuli. The indistinct structure of mitochondrial cristae was observed only in plants treated with 50‰ salinity. These showed that mitochondria are cell organs less sensitive to hypersaline conditions than chloroplasts and nucleus, and it was deduced that respiration was more conservative to an environment change than photosynthesis.

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“…The same phenomena on plants as a response to excess Ni were obtained in cabbage (MOLAS 1997) and in pine and birch (KUKKOLA, HUTTUNEN 1998;KUKKOLA et al 2000).…”

Section: Discussionsupporting

confidence: 64%

Relationship of leaf ultrastructure of mangrove Kandelia candel (L.) Druce to salt tolerance

Qiu¹,

Lin²,

Su³

2005

J. For. Sci.

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“…This alteration was manifested in choroplasts by the swelling and the decreasing number of grana thylakoids. Similar chloroplast alterations were observed in cabbage (Molas, 2002), pine and birch (Kukkola et al, 1997(Kukkola et al, , 2000 exposed to high-Ni concentrations, or on maize exposed to Cd and Zn (Jiang et al, 2007). Moreover, the number and size of plastoglobuli in the thylakoids stroma of V. faba L. leaves increased for plants grown on mine tailings.…”

Section: Damages On V Faba L As a Response To Metal Contamination: supporting

confidence: 65%

Response of Vicia faba L. to metal toxicity on mine tailing substrate: Geochemical and morphological changes in leaf and root

Probst

Liu

Fanjul

et al. 2009

Environmental and Experimental Botany

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a b s t r a c tVicia faba L. seeds were grown in a pot experiment on soil, mine tailings, and a mixture of both to mimic field situations in cultivated contaminated areas near mining sites. Metals in the substrates and their translocation in root, stem and leaf tissues were investigated, including morphological responses of plants growing on mine tailings. Metal concentration -and generally bioaccumulation -was in the order: roots > leaves > stems, except Pb and Cd. Translocation was most significant for Zn and Cd, but limited for Pb. Metal concentration in root and leaf was not proportional to that in the substrates, unexpectedly the minimum being observed in the mixed substrate whilst plant growth was retarded by 20% (38% on tailings). Calcium, pH, organic matter and phosphorus were the main influencing factors for metal translocation. The ultrastructure of V. faba L. cells changed a lot in the mine tailings group: root cell walls were thickened with electron dense Pb, Zn and C particles; in chloroplasts, the number of plastoglobuli increased, whereas the thylakoids were swollen and their number decreased in grana. Finally, needleshaped crystalline concretions made of Ca and P, with Zn content, were formed in the apoplast of the plants. The stratagems of V. faba L. undergoing high concentrations of toxic metals in carbonate substrate, suggest root cell wall thickening to decrease uptake of toxic metals, a possible control of metal transport from roots to leaves by synthesizing phytochelators-toxic metal complexes, and finally a control of exceeded Ca and metal concentration in leaves by crystal P formation as ultimate response to stress defense. The geochemical factors influencing metal availability, guaranty a reduction of metal content in plant growing on mixed tailing/soil substrate as far as carbon te are not completely dissolved.

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“…Similar results have also been reported in corn, wheat and Alyssum species (Baccouch et al 2001;Schickler and Caspi 1999;Dietz et al 1999). In addition, Ni-induced depletion of low molecular weight proteins, such as GSH, may contribute to the induction of oxidative stress in plants (Madhava Rao and Sresty 2000;Kukkola et al 2000).…”

Section: Induction Of Oxidative Stressmentioning

confidence: 99%

Occurrence, physiological responses and toxicity of nickel in plants

Sreekanth

Nagajyothi

Lee

et al. 2013

Int. J. Environ. Sci. Technol.

184

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The focus of the review is on the specific aspects of nickel's effects on growth, morphology, photosynthesis, mineral nutrition and enzyme activity of plants. The mobility of nickel in the environment and the consequent contamination in soil and water is of great concern. Also, the detrimental effects of excessive nickel on plant growth have been well known for many years. Toxic effects of nickel on plants include alterations in the germination process as well as in the growth of roots, stems and leaves. Total dry matter production and yield was significantly affected by nickel and also causes deleterious effects on plant physiological processes, such as photosynthesis, water relations and mineral nutrition. Nickel strongly influences metabolic reactions in plants and has the ability to generate reactive oxygen species which may cause oxidative stress. More recent evidence indicates that nickel is required in small amounts for normal plant growth and development. Hence, with the increasing level of nickel pollution in the environment, it is essential to understand the functional roles and toxic effects of nickel in plants.

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Stress indications in copper- and nickel-exposed Scots pine seedlings

Cited by 72 publications

References 44 publications

Relationship of leaf ultrastructure of mangrove Kandelia candel (L.) Druce to salt tolerance

Relationship of leaf ultrastructure of mangrove Kandelia candel (L.) Druce to salt tolerance

Response of Vicia faba L. to metal toxicity on mine tailing substrate: Geochemical and morphological changes in leaf and root

Occurrence, physiological responses and toxicity of nickel in plants

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