Physiological Response of Maize to Arsenic Contamination

Remediation of Arsenic Toxicity in the Soil-Plant System by Using Zinc Fertilizers

“…Supporting this hypothesis, it was also reported that the higher concentrations of As interfere with metabolic processes and inhibit plant growth, sometimes leading to death [21]. Growth reduction of several plants due to higher doses of arsenic was also reported by [22]. Lower biomass production of plants resulting lower synthesis and lower pigment concentration due to increasing levels of As in plant-soil environment was also reported by [23].…”

Changes in pigments and photosynthetic parameters of cowpea under two inorganic arsenicals

“…The mesophyll factors could be of different nature, such as disturbances in the pigment apparatus, light and biochemical reactions from the Calvin Cycle. The process of photosynthesis is found to be affected by arsenic stress [20,36] and other stresses like drought [37]. The greater reduction in photosynthesis rate under As (V) treatment could be attributed to higher disturbances in the pigment apparatus by a higher level of reactive oxygen species (ROS) generated under systems predominated with arsenate compared to arsenite.…”

“…Exposure to arsenic As causes damage to cellular membranes and therefore leakage of electrolyte [19]. Arsenic inhibits the growth together with fresh and dry biomass production [20] and causes physiological disorders [21], as well as reduction in photosynthetic rate [22] and crop productivity [23]. Arsenic causes damage to the chloroplast membrane of the leaves, the most essential organ for the manufacture of photo-assimilate as well most sensitive part of plant to stress, and disorganized the membrane structure.…”

Arsenic (As) Toxicity to Germination and Vegetative Growth of Sunflower (Helianthus annuus L.)

“…Most of the research works in context of arsenic accumulation in food crops have focused on rice (Oryza sativa L.) [16,24], wheat (Triticum aestivum L.) [25], and maize (Zea mays L.) [26]. A variety of crops, including bean plants [27], have seen a significant reduction in biomass production and yield, especially at elevated arsenic concentrations.…”

“…A variety of crops, including bean plants [27], have seen a significant reduction in biomass production and yield, especially at elevated arsenic concentrations. With soil application of only 50 mg, As kg -1 reductions in yields of barley (Hordeum vulgare L.), rye grass (Lolium perenne L.) [28], wheat (Triticum aestivum L.) [29], rice (Oryza sativa L.) [14], and maize (Zea mays L.) [26] have been recorded. Less extensive work has been conducted on sunflowers (Helianthus annuus L.) [30].…”