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Lasa, Berta; Frechilla, Silvia; Tejo, Pedro María Aparicio; Lamsfus, Carmen

doi:10.1023/a:1020312806239

Cited by 29 publications

(8 citation statements)

References 23 publications

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“…They also alter the physico-chemical characteristics of 17 the receiving aquatic bodies and affect aquatic flora and fauna. The sugar factory effluent in 18 the environment, poses serious health hazard for the rural and semi-urban population that 19 uses the stream and river water for agriculture and domestic purposes. There have been 20 reports of fish mortality in the stream and river, and also damage to the paddy crops in this 21 area due to the entry of these wastewaters in to the agricultural land (Baruah et al 1993).…”

Section: Characteristics Of Terrestrial and Aquatic Plants 2mentioning

confidence: 99%

Impact of Sugar Factory Effluent on the Growth and Biochemical Characteristics of Terrestrial and Aquatic Plants

Ayyasamy

Yasodha

Rajakumar

et al. 2008

Bull Environ Contam Toxicol

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Section: Characteristics Of Terrestrial and Aquatic Plants 2mentioning

confidence: 99%

Impact of Sugar Factory Effluent on the Growth and Biochemical Characteristics of Terrestrial and Aquatic Plants

Ayyasamy

Yasodha

Rajakumar

et al. 2008

Bull Environ Contam Toxicol

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“…Plants were grown hydroponically using an Araponics system (Liège, Belgium) as described in Podgórska et al [47]. The nutrient medium (according to [104]), containing 5 mM NO 3 − or 5 mM NH 4 + as nitrogen source was renewed twice a week. NO 3 − -treated WT plants were used as controls.…”

Section: Methodsmentioning

confidence: 99%

Nitrogen Source Dependent Changes in Central Sugar Metabolism Maintain Cell Wall Assembly in Mitochondrial Complex I-Defective frostbite1 and Secondarily Affect Programmed Cell Death

Podgórska

Ostaszewska-Bugajska

Tarnowska

et al. 2018

IJMS

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For optimal plant growth, carbon and nitrogen availability needs to be tightly coordinated. Mitochondrial perturbations related to a defect in complex I in the Arabidopsis thaliana frostbite1 (fro1) mutant, carrying a point mutation in the 8-kD Fe-S subunit of NDUFS4 protein, alter aspects of fundamental carbon metabolism, which is manifested as stunted growth. During nitrate nutrition, fro1 plants showed a dominant sugar flux toward nitrogen assimilation and energy production, whereas cellulose integration in the cell wall was restricted. However, when cultured on NH4+ as the sole nitrogen source, which typically induces developmental disorders in plants (i.e., the ammonium toxicity syndrome), fro1 showed improved growth as compared to NO3− nourishing. Higher energy availability in fro1 plants was correlated with restored cell wall assembly during NH4+ growth. To determine the relationship between mitochondrial complex I disassembly and cell wall-related processes, aspects of cell wall integrity and sugar and reactive oxygen species signaling were analyzed in fro1 plants. The responses of fro1 plants to NH4+ treatment were consistent with the inhibition of a form of programmed cell death. Resistance of fro1 plants to NH4+ toxicity coincided with an absence of necrotic lesion in plant leaves.

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“…The incorporation of sense-constructs gave rise to the overexpressor (XX-2) mutants, while the insertion of the antisense-construct created the suppressor (AS-12) line. After their seed germination in 1% agar in ½ x Murashige & Skoog for one week, the plants were supplemented with nutrient medium (Lasa et al, 2002). The hydroponics cultures in an Araponics growth system (Liege, Belgium) were established for 8 weeks, while the liquid medium was renewed twice a week.…”

Section: Plant Samples and Growth Conditionsmentioning

confidence: 99%

Efficient Photosynthetic Functioning of Arabidopsis thaliana Through Electron Dissipation in Chloroplasts and Electron Export to Mitochondria Under Ammonium Nutrition

et al. 2020

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An improvement in photosynthetic rate promotes the growth of crop plants. The sinkregulation of photosynthesis is crucial in optimizing nitrogen fixation and integrating it with carbon balance. Studies on these processes are essential in understanding growth inhibition in plants with ammonium (NH + 4) syndrome. Hence, we sought to investigate the effects of using nitrogen sources with different states of reduction (during assimilation of NO − 3 versus NH + 4) on the photosynthetic performance of Arabidopsis thaliana. Our results demonstrated that photosynthetic functioning during long-term NH + 4 nutrition was not disturbed and that no indication of photoinhibition of PSII was detected, revealing the robustness of the photosynthetic apparatus during stressful conditions. Based on our findings, we propose multiple strategies to sustain photosynthetic activity during limited reductant utilization for NH + 4 assimilation. One mechanism to prevent chloroplast electron transport chain overreduction during NH + 4 nutrition is for cyclic electron flow together with plastid terminal oxidase activity. Moreover, redox state in chloroplasts was optimized by a dedicated type II NAD(P)H dehydrogenase. In order to reduce the amount of energy that reaches the photosynthetic reaction centers and to facilitate photosynthetic protection during NH + 4 nutrition, non-photochemical quenching (NPQ) and ample xanthophyll cycle pigments efficiently dissipate excess excitation. Additionally, high redox load may be dissipated in other metabolic reactions outside of chloroplasts due to the direct export of nucleotides through the malate/oxaloacetate valve. Mitochondrial alternative pathways can downstream support the overreduction of chloroplasts. This mechanism correlated with the improved growth of A. thaliana with the overexpression of the alternative oxidase 1a (AOX1a) during NH + 4 nutrition. Most remarkably, our findings

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Cited by 29 publications

References 23 publications

Impact of Sugar Factory Effluent on the Growth and Biochemical Characteristics of Terrestrial and Aquatic Plants

Impact of Sugar Factory Effluent on the Growth and Biochemical Characteristics of Terrestrial and Aquatic Plants

Nitrogen Source Dependent Changes in Central Sugar Metabolism Maintain Cell Wall Assembly in Mitochondrial Complex I-Defective frostbite1 and Secondarily Affect Programmed Cell Death

Efficient Photosynthetic Functioning of Arabidopsis thaliana Through Electron Dissipation in Chloroplasts and Electron Export to Mitochondria Under Ammonium Nutrition

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