Table 1. Identified Metabolites and Their Behavior during Submergence.

Metabolite	R. acetosa				R. palustris
	Submergence (P value)	Time (P value)	t × s (P value)	Direction	Submergence (P value)	Time (P value)	t × s (P Value)	Direction
Suc		<0.01			<0.01			Down
Glc
Fru
6-phosphogluconate			<0.05	Down
3-phosphoglycerate		<0.01
Citrate
α-ketoglutarate
Succinate		<0.01
Malate
Oxalate		<0.01
Glu					<0.05			Down
Pyroglutamate
Aspartate		<0.01
Gly	<0.05	<0.05		Up
β-Ala	<0.01			Up
Lactate	<0.01			Up	<0.05			Up
Myo-inositol
Ascorbate
β-sitosterol	<0.05			Up
Campesterol	<0.05			Up
Shikimate		<0.05
Tartrate		<0.05
Propanoate		<0.01
Erythronate	<0.01	<0.05		Up
Total protein						<0.001
Amino acids						<0.05
Nitrate	<0.001	<0.01	<0.001	Up
Ammonia	<0.01			Up	<0.001	<0.001	<0.05	Up
Starch			<0.05	Down	<0.05	<0.001		Down
ATP	<0.05	<0.001		Up
ATP:ADP

Data presented as P values were calculated using two-way analysis of variance. Blank cells indicate no significant effect. Submergence, submergence main effect; Time, time main effect; t × s, time × submergence interaction. Direction, direction of change, either down or up indicating lower or higher levels in submerged plants.