20 citations,
January 2021 in “Plants” High energy boosts root hair growth in plants, while low energy stops it.
11 citations,
May 2018 in “Frontiers in plant science” Arabidopsis PCaP2 helps plants survive drought by linking ABA and SA signals.
Plant roots respond to fungus smells by possibly using certain proteins and a plant hormone to change root growth, but more research is needed.