Many plants absorb nutrients from the breakdown products of animals through their roots. Petunias and some other plants have sticky hairs in which insects get trapped. These plants don’t actively digest the insects but merely allow the trapped insects to die and decompose. If the remains of the insects fall nearby, the nutrients are available to be absorbed through the plants’ roots. Are these plants facilitating the accumulation of nutrients beneath them by catching insects? Mark Chase, Keeper of the Jodrell Laboratory at the Royal Botanic Gardens, believes so:
“many commonly grown plants may turn out to be cryptic carnivores, at least by absorbing through their roots the breakdown products of the animals that they ensnare.”
Photo of a petunia, by Elena Chochkova, August, 2009
No comments:
Post a Comment