Question

Interspecific competition between plants may manifest itself by chemical aggression, called as

• A. Parasitism
• B. Predation
• C. Allelopathy
• D. Ecological sere

Answer 1

The correct option is C Allelopathy

Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the growth, survival, and reproduction of other organisms.

These biochemicals are known as allelochemicals and can have beneficial (positive allelopathy) or detrimental (negative allelopathy) effects on the target organisms.

Allelochemicals are a subset of secondary metabolites, which are not required for metabolism (i.e., growth, development and reproduction) of the allelopathic organism. Allelochemicals with negative allelopathic effects are an important part of plant defense against herbivory. Allelopathy is characteristic of certain plants, algae, bacteria, coral, and fungi. Allelopathic interactions are an important factor in determining species distribution and abundance within plant communities, and are also thought to be important in the success of many invasive plants..