Endemic species - Species that live in a single, often isolated, location.

Cosmopolitan Species - with very large geographic ranges that can span several continents.

TLS Online TPP Program

#Id: 9513

#XL - R Botany

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

TLS Online TPP Program

#Id: 9514

#XL - R Botany

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

#XL - R Botany

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). 

TLS Online TPP Program

#Id: 9516

#XL - R Botany

The xylem‐colonizing bacterium Xylella fastidiosa is transmitted by various species of Homalodisca in the family Cicadellidae.

TLS Online TPP Program

#Id: 9517

#XL - R Botany

During infection, most bacteria remain in extracellular spaces and use a specialized mechanism, the type III secretion system (T3SS), to deliver bacterial effector proteins into the plant cell

TLS Online TPP Program

#Id: 9518

#XL - R Botany

The structural components of the T3SS are encoded by the clustered hypersensitive response and pathogenicity cluster (hrp) genes.