Influence of changes in manganese and magnesium supply on some aspects of wheat physiology

Chatterjee, C.; Nautiyal, Nirmala; Agarwala, S. C.

doi:10.1080/00380768.1994.10413293

Cited by 24 publications

(13 citation statements)

References 21 publications

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“…In addition, urban plant samples have lower rubidium concentrations than those from background sites and the leaves and roots in samples from the background sites differ, while in urban plant samples no such distinct difference is found. It has been shown in many experiments that a decrease in mineral nutrient content affects several metabolic processes, including photosynthesis (Kirchgebner and Roth, 1982;Natr, 1987;Chatterjee et al, 1994), and also leads to different genetic responses (Sanderman, 1984). Although no visible (external) changes in the urban plants studied were observed, it is suggested that the variations in relative concentrations might initiate such changes.…”

Section: Relationship Between Potassium and Calcium In Roots (W) And mentioning

confidence: 98%

Behaviour of Chemical Elements in Plants and Soils

Shtangeeva

1995

Chemistry and Ecology

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Neutron activation analysis was used for the determination of the elemental composition of different plants and soils. Variations in concentrations of elements during the day were found. Mean concentrations, standard deviations and relationships between elements in soils and different parts of plants were studied. It was shown that the behaviour of chemical elements in samples from urban and unpolluted areas have significant differences.

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Section: Relationship Between Potassium and Calcium In Roots (W) And mentioning

confidence: 98%

Behaviour of Chemical Elements in Plants and Soils

Shtangeeva

1995

Chemistry and Ecology

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“…More than 80% of all Mn contained in the chloroplasts is associated with PSII (Anderson et al, 1964). Thus, Mn deficiency leads to a rapid reduction in oxygen production (Andersson and Pyliotis, 1969;Nable et al, 1984;Chatterjee et al, 1994) and to a marked change in chlorophyll (Chl) a fluorescence induction kinetics (Anderson and Thorne, 1968;Kriedemann et al, 1985). Continuous Mn deficiency is followed by the development of characteristic visual leaf symptoms such as intravenous chlorosis and subsequently the development of necrotic spots, which are supposed to be related to disorganization of the thylakoid system and loss of PSII reaction centers (Simpson and Robinson, 1984;Papadakis et al, 2007).…”

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confidence: 99%

Manganese Deficiency Leads to Genotype-Specific Changes in Fluorescence Induction Kinetics and State Transitions

et al. 2009

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Barley (Hordeum vulgare) genotypes display a marked difference in their ability to tolerate growth at low manganese (Mn) concentrations, a phenomenon designated as differential Mn efficiency. Induction of Mn deficiency in two genotypes differing in Mn efficiency led to a decline in the quantum yield efficiency for both, although faster in the Mn-inefficient genotype. Leaf tissue and thylakoid Mn concentrations were reduced under Mn deficiency, but no difference between genotypes was observed and no visual Mn deficiency symptoms were developed. Analysis of the fluorescence induction kinetics revealed that in addition to the usual O-J-I-P steps, clear K and D steps were developed in the Mn-inefficient genotype under Mn deficiency. These marked changes indicated damages to photosystem II (PSII). This was further substantiated by state transition measurements, indicating that the ability of plants to redistribute excitation energy was reduced. The percentage change in state transitions for control plants with normal Mn supply of both genotypes was 9% to 11%. However, in Mn-deficient leaves of the Mn-inefficient genotypes, state transitions were reduced to less than 1%, whereas no change was observed for the Mnefficient genotypes. Immunoblotting and the chlorophyll a/b ratio confirmed that Mn deficiency in general resulted in a significant reduction in abundance of PSII reaction centers relative to the peripheral antenna. In addition, PSII appeared to be significantly more affected by Mn limitation than PSI. However, the striking genotypic differences observed in Mn-deficient plants, when analyzing state transitions and fluorescence induction kinetics, could not be correlated with specific changes in photosystem proteins. Thus, there is no simple linkage between protein expression and the differential reduction in state transition and fluorescence induction kinetics observed for the genotypes under Mn deficiency.

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“…Low concentration of Mg and Fe in the seedlings might have reduced chlorophyll concentration and therefore decline in photosynthesis rate (Sun and Payn 1999). It is also suggested by increased Pn and T in T 5 treatment and was believed to be due to alleviated effect of Mg added through municipal effluent application and influenced chlorophyll content, biomass and physiological activities (Chatterjee et al 1994).…”

Section: Effects On Physiological Functionsmentioning

confidence: 98%

Changing effluent chemistry affect survival, growth and physiological function of Acacia nilotica seedlings in northwestern region of India

Singh

Bhati

2007

Environmentalist

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Recycling and conservation efforts for water are the need of the day because of the lack of new water sources and the ever-increasing demand for drinking water. Seedlings of Acacia nilotica L. were irrigated with: canal water (T 1 , control); municipal effluent (T 2 ); textile effluent (T 3 ); steel effluent (T 4 ); textile + municipal effluent in 1:1 ratio (T 5 ); steel + municipal effluent in 1:2 ratio (T 6 ); steel + textile in 1:2 ratio (T 8 ) and steel + municipal + textile in 1:2:2 ratio (T 7 ) with views to observe effluents effect on the seedlings and its adaptability and to recommend safe disposal of these effluents. Seedlings in T 6 , T 7 and T 8 showed 50% lesser height and collar diameter than those in control. Seedlings in T 2 attained greatest height, collar diameter, numbers of branches and produced 140 g dry biomass seedling -1 . Highest concentration of manganese (Mn), iron (Fe), copper (Cu) and zinc (Zn) and lowest concentration of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) in the seedlings of T 4 , T 6 , T 7 and T 8 resulted in nutritional imbalance, mineral toxicity and reduction in photosynthetic (Pn) and transpiration (E) rates and caused seedling mortality. Seedlings of T 3 had highest sodium concentration and low concentration of Ca, Mg and micronutrients resulting in nutritional imbalance, augmented chlorosis and reduced gas exchange and biomass by half as compared to control. Increased growth, Pn and E and biomass in seedlings of T 5 over T 3 and survival period in T 6 , T 7 and T 8 seedlings suggested a beneficial effect of effluents mixing. Unscientific disposal should be avoided and toxic concentration of metal ions may be reduced for long-term application and harmless disposal of effluents in afforestation and urban development.

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Influence of changes in manganese and magnesium supply on some aspects of wheat physiology

Cited by 24 publications

References 21 publications

Behaviour of Chemical Elements in Plants and Soils

Behaviour of Chemical Elements in Plants and Soils

Manganese Deficiency Leads to Genotype-Specific Changes in Fluorescence Induction Kinetics and State Transitions

Changing effluent chemistry affect survival, growth and physiological function of Acacia nilotica seedlings in northwestern region of India

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