TLS Online TPP Program

#Id: 9510

#Unit 6. System Physiology – Plant

Phytopathogenic bacteria reside within the intercellular spaces of plant organs or in the xylem and many damage plant tissues by secreting toxins, extracellular polysaccharides (EPSs), or cell wall‐degrading enzymes.

TLS Online TPP Program

#Id: 9511

#Unit 6. System Physiology – Plant

Coronatine is a toxin effector produced by the bacterium Pseudomonas syringae to mimic the plant hormone jasmonic acid‐isoleucine and this assists bacterial infection.

TLS Online TPP Program

#Id: 9512

#Unit 6. System Physiology – Plant

Coronatine is involved in causing stomata to open after closing in response to PAMPs, as well as in interfering with salicylic acid (SA)‐mediated defense responses.

TLS Online TPP Program

#Id: 9513

#Unit 6. System Physiology – Plant

Bacteria frequently deploy a “quorum‐sensing” mechanism to facilitate successful colonization of plant tissue

TLS Online TPP Program

#Id: 9514

#Unit 6. System Physiology – Plant

Quorum sensing in Erwinia carotovora is mediated by N‐acylhomoserine lactones, small molecules released from the bacterial cells into the surrounding medium.

TLS Online TPP Program

#Id: 9515

#Unit 6. System Physiology – Plant

Phytoplasmas are specialized bacteria that are obligate parasites of the phloem tissue. They are mainly

spread by insects in the families Cicadellidae (leaf hoppers),

Fulgoroidae (plant hoppers), and Psyllidae (jumping plant

lice).