Name important defence mechanisms in plants against herbivory.
Name important defence mechanisms in plants against herbivory.
Several plants have evolved various mechanisms both morphological and chemical to prote themselves against herbivory.
Morphological defence mechanisms:
Cactus leaves (Opuntia) are modified into sharp spines (thorns) to deter herbivores from feeding on them.
Sharp thorns along with leaves are present in Acacia to deter herbivores.
In some plants, the margins of their leaves are spiny or have sharp edges that prevent herbivores from feeding on them.
Chemical defence mechanisms:
All parts of Calotropis weeds contain toxic cardiac glycosides, which can prove to be fatal if ingested by herbivores.
Chemical substances such as nicotine, caffeine, quinine, and opium are produced in plants as a part of self-defence.
Similar Questions
While explaining interspecific interaction of population, $(+)$ sign is assigned for beneficial interaction,$(-)$ sign is assigned for detrimental interaction and $(0)$ for neutral interaction. Which of the following interactions can be assigned $(+)$ for one species and $(-)$ for another species involved in the interaction?
While explaining interspecific interaction of population, $(+)$ sign is assigned for beneficial interaction,$(-)$ sign is assigned for detrimental interaction and $(0)$ for neutral interaction. Which of the following interactions can be assigned $(+)$ for one species and $(-)$ for another species involved in the interaction?
- [NEET 2022]
Give a suitable example for commensalism.
Give a suitable example for commensalism.
In an aqueous environment, the microscopic animals are collectively called
In an aqueous environment, the microscopic animals are collectively called
- [AIPMT 2001]
The interaction between two living organisms of different species which is beneficial to both but is not obligatory because they can live without each other is known as
The interaction between two living organisms of different species which is beneficial to both but is not obligatory because they can live without each other is known as
$A$ : Fig species and wasp have tight one to one relatioinship.
$R$ : Angiosperms and insects are coevolved to perform a plant-pollinator interaction.
$A$ : Fig species and wasp have tight one to one relatioinship.
$R$ : Angiosperms and insects are coevolved to perform a plant-pollinator interaction.