Application Note — Agricultural and Clinical Applications — Notes | NoteTube

Application	Respiration Concept Used
Stored grain/seed dormancy	Low respiration rate (reduced $O_{2}$ , low temperature) slows seed deterioration; RQ monitoring helps assess seed quality
Germinating seed monitoring	Rising RQ from <1 (fat substrate) toward 1 (carbohydrate) indicates normal germination progress
Post-harvest fruit storage	Controlled atmosphere storage (low $O_{2}$ , high C $O_{2}$ ) reduces aerobic respiration, extending shelf life
Waterlogged soils and root death	Anaerobic conditions force roots into fermentation → ethanol/lactate accumulation is toxic; crop losses
CAM plant water efficiency	Night C $O_{2}$ fixation (malic acid) with RQ → ∞; water-use efficiency maximised in arid environments
Yeast in baking and brewing	Alcoholic fermentation (Saccharomyces) produces C $O_{2}$ (leavening) and ethanol (brewing)

Application	Respiration Concept Used
Beriberi disease	Thiamine ( $B_{1}$ ) deficiency → impaired pyruvate dehydrogenase complex → pyruvate accumulates; nervous system damage
Cyanide poisoning treatment	$CN^{-}$ blocks Complex IV; antidote involves competing substrates (hydroxocobalamin)
Lactic acidosis	Anaerobic conditions (shock, exercise) → lactate dehydrogenase overactive → lactate builds up → blood acidosis
RQ in clinical nutrition	Dietary RQ is measured to assess substrate oxidation; RQ ~0.7 = fat burning (ketogenic diet); RQ = 1.0 = carbohydrate metabolism
Metabolic rate measurement	Indirect calorimetry measures $O_{2}$ consumed and C $O_{2}$ produced to calculate energy expenditure