Adaptive strategies in young Inga vera subsp. affinis plants under flooding.
Feitosa RMP, Ximenez GR, Pastorini LH, Romagnolo MB
Climate Adaptation
Riparian forests along flood-prone rivers are among the hardest native ecosystems to restore — knowing which trees can actually handle standing water tells land managers and native-plant gardeners exactly what to plant where the ground stays wet.
Researchers flooded young Inga vera seedlings for 44 days to see how the plants coped. The plants grew more slowly and their leaves made less of the green pigment used for photosynthesis, but they ramped up sugar production and sent those sugars down to their roots — essentially fueling the root system to stay alive while the rest of the plant paused. This tells us the species has built-in ways to ride out floods, which is exactly what you need from a tree meant to grow along a river.
Key Findings
Seedlings flooded for 44 days showed measurably reduced height, root length, and leaf area compared to controls.
Photosynthetic pigment levels dropped under flooding, indicating suppressed leaf-level energy capture.
Soluble sugar production increased and was reallocated from leaves to roots, suggesting active carbohydrate redistribution as a flood-survival mechanism.
chevron_right Technical Summary
Inga vera, a riparian tree native to Brazil's Atlantic Forest, survives weeks of flooding by slowing growth and shifting sugar reserves to its roots — a physiological survival strategy that makes it a strong candidate for restoring flood-prone riverbanks.
Abstract Preview
Inga vera subsp. affinis (DC.) T.D.Penn. is a common species in riparian vegetation of the Atlantic Forest within the Upper Paraná River Floodplain (UPRF) and of great ecological importance in the ...
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Inga vera is a species of tropical tree in the family Fabaceae. It occurs in Central and South America, where it is known as churimo, guamo churimo, guamo arroyero and guamo macho.