Which risk arises, given increased soil anoxia around wetland plant roots affecting nitrate reductase?

💡 Explanation

Ammonium toxicity increases when soil anoxia inhibits nitrate reductase activity which prevents assimilation; because nitrate cannot proceed to ammonium via nitrate reductase. Ammonium, rather than being used for plant growth, accumulates becoming toxic; therefore leading to damage instead.

• Which factor primarily reduces surface tension in xylem?
• Which developmental outcome results when juvenile hormone analogue abnormally activates imaginal disc cells during larval molting?
• Which outcome occurs when increased salinity inhibits microbial activity near mangrove roots?
• Which risk increases when a jellyfish's statocyst fails?
• Which biomechanical consequence results from increased wing loading during avian flight maneuvers?
• Which regulatory mechanism facilitates survival for salmon migrating from freshwater to saltwater environments?