ArticlePlanta2026
Urease-null soybean (eu3-a) under salt and copper stress: nitrogen metabolism, antioxidant defense, and arginine pathway genes.
Article in Planta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
MAIN
conclusionThe eu3-a mutant exhibited greater tolerance to salt stress but increased sensitivity to copper stress, with distinct impacts on nitrogen metabolism, photosynthesis, and antioxidant responses. The eu3-a soybean mutant is urease-null, lacking all urease activity responsible for catalyzing the hydrolysis of urea into ammonia and carbon dioxide. In this study, the urease-null eu3-a soybean mutant was used to assess the saline and copper stresses on nitrogen metabolism. Seeds of eu3-a/eu3-a and the corresponding dominant homozygous Eu3 precursor line were collectively referred to as near-isogenic lines (NILs). Experiments were conducted under hydroponic conditions using plants at the reproductive stage (R1-R2) and subjected to either salinity stress (NaCl: 0, 50, and 100 mM) or copper stress (CuCl
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