What is a symptom of pigment inhibitors related to plants?

• A. Wilting leaves
• B. White leaves (bleaching)
• C. Stunted growth
• D. Dark spots on leaves

Answer: (B)

The correct choice is associated with the phenomenon called "white leaves" or "bleaching." This symptom occurs when pigment inhibitors, such as certain herbicides or chemicals, interfere with the plant's ability to produce chlorophyll and other pigments. When these pigments are inhibited, the leaves cannot maintain their green color, leading to a bleached appearance. This misalignment in pigment production affects the plant's overall health and its ability to photosynthesize effectively.

The other symptoms represent different issues. Wilting leaves typically indicate water stress or disease rather than a pigment issue. Stunted growth is usually linked to a variety of factors such as nutrient deficiency or environmental stress but does not specifically point to pigment inhibition. Dark spots on leaves often suggest diseases or pest damage rather than problems with pigment production. Thus, the distinct marker of pigment inhibitors is the bleaching effect on leaves, making it the accurate symptom to identify.