Plant’s Sensory System and Responses

• Hormones - are chemical messengers in plants.
• Hormones - They regulate various biochemical and physiological responses that include seed germination, flowering, photosynthesis, fruit ripening, and shoot and root development.
• Thigmotropism - Plant’s response presented when string beans growing on a tree by touch.
• Abscisic Acid - A plant hormone that induces seed dormancy and prevent growth which can make fruit smaller.
• Gibberellin - A plant hormone that is responsible for promoting seed germination.
• Apical Meristem - It is the part of the plant where phototropism takes place.
• Tropism - A plant’s response to different environmental stimuli.
• Positive tropism occurs when the plants move toward the stimulus
• Thigmonastic response - defined as touch response regardless of the direction of stimulus