{"id":5197,"date":"2026-02-14T05:52:09","date_gmt":"2026-02-14T05:52:09","guid":{"rendered":"https:\/\/cognitionconferences.com\/agriculture\/?post_type=speaker&p=5197"},"modified":"2026-02-14T05:52:09","modified_gmt":"2026-02-14T05:52:09","slug":"seema-mishra","status":"publish","type":"speaker","link":"https:\/\/cognitionconferences.com\/agriculture\/speaker\/seema-mishra\/","title":{"rendered":"Seema Mishra"},"content":{"rendered":"

Abstract<\/p>\n

<\/strong>Rice productivity and grain quality are threatened by the dual challenges of arsenic (As) and
\nother toxic metals contamination and climate change. This study presents the impacts of elevated
\nCO2 (eCO2), eO3, and eTemp on trace and toxic elements transformation (for As), mobilization
\nand accumulation in paddy soils and rice. Future climate scenarios promote soil bio-geochemical
\nshifts that enhance microbes mediated bio-transformations of As by methylation and thiolation,
\nthereby increasing its mobility. Simultaneously, climate change combined with As toxicity
\ndisrupts rice physiology, altering As uptake, translocation, and accumulation patterns.
\nConsequently, rice grains show elevated total and inorganic As, coupled with a depletion of
\nessential nutrients such as iron, zinc, and key sugar metabolites. Among the toxic metals; Cd
\nshowed significant increase across all rice tissues under elevated climatic factors. Whereas,
\naccumulation of Cr and Pb generally declined, with exception to Cr in grain this increased under
\neCO2. In general, elevated climatic conditions reduced trace nutrient concentrations in grains,
\nexcept for Se, which increased by ~32% under eTemp, and Mo increased by ~6% under eO3. The
\neffects of elevated climatic factors were more pronounced (>30% reduction) for Fe, Co, Se, Mo,
\nand Ni, than Mn, Cu, and Zn (~10% reduction). The rice grown in high As containing soil leads
\nto major imbalances in organic acids, phytosterols, and fatty acids in grains, resulting in yield
\nreductions of up to 40%. These effects are projected to exacerbate hidden hunger and increase
\ncancer risks across several Asian countries by 2050 with ~700 cases per 100,000 individuals.
\nOverall, these findings demonstrated that elevated climatic factors can substantially alter the
\naccumulation and interaction patterns of trace and toxic elements in rice grains, posing potential
\nrisks to grain quality and food safety under future climate change scenarios.
\n<\/strong><\/p>\n","protected":false},"featured_media":5198,"template":"","meta":{"_acf_changed":false},"schedule":[5],"speaker-category":[6],"class_list":["post-5197","speaker","type-speaker","status-publish","has-post-thumbnail","hentry","schedule-day-1","speaker-category-speakers"],"acf":[],"yoast_head":"\nSeema Mishra | University of Lucknow | India<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cognitionconferences.com\/agriculture\/speaker\/seema-mishra\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seema Mishra | University of Lucknow | India\" \/>\n<meta property=\"og:description\" content=\"Abstract Rice productivity and grain quality are threatened by the dual challenges of arsenic (As) and other toxic metals contamination and climate change. This study presents the impacts of elevated CO2 (eCO2), eO3, and eTemp on trace and toxic elements transformation (for As), mobilization and accumulation in paddy soils and rice. Future climate scenarios promote […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cognitionconferences.com\/agriculture\/speaker\/seema-mishra\/\" \/>\n<meta property=\"og:site_name\" content=\"Cognition Conferences\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cognitionconferences.com\/agriculture\/wp-content\/uploads\/2026\/02\/Seema-Mishra.png\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"240\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/\",\"url\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/\",\"name\":\"Seema Mishra | University of Lucknow | India\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Seema-Mishra.png\",\"datePublished\":\"2026-02-14T05:52:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Seema-Mishra.png\",\"contentUrl\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Seema-Mishra.png\",\"width\":200,\"height\":240},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/speaker\\\/seema-mishra\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Seema Mishra\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/#website\",\"url\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/\",\"name\":\"Cognition Conferences\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/cognitionconferences.com\\\/agriculture\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Seema Mishra | University of Lucknow | India","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cognitionconferences.com\/agriculture\/speaker\/seema-mishra\/","og_locale":"en_US","og_type":"article","og_title":"Seema Mishra | University of Lucknow | India","og_description":"Abstract Rice productivity and grain quality are threatened by the dual challenges of arsenic (As) and other toxic metals contamination and climate change. 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