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: 8206

#Unit 2. Cellular Organization

Plant vacuole act as

a storage organelle for nutrients and waste products

a degradative compartment

an economical way of increasing cell size

a controller of turgor pressure

TLS Online TPP Program

#Id: 8207

#Unit 2. Cellular Organization

Anthocyanin pigments stored in vacuoles

Color the petals of many flowers so as to attract pollinating insects

TLS Online TPP Program

#Id: 8208

#Unit 2. Cellular Organization

There are 4 paths from different sources feed substances into lysosomes for digestion:

• Endocytosis

• Phagocytosis

• Macropinocytosis

• Autophagy

TLS Online TPP Program

#Id: 8209

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 8210

#Unit 2. Cellular Organization

Autophagy (“eating oneself”)

When cells are placed under stressful conditions, they have the capacity to recycle macromolecules for use as nutrients in a process of lysosomal degradation.

TLS Online TPP Program

#Id: 8211

#Unit 2. Cellular Organization

Autophagosome, or autophagic vesicle

formation of a flattened double-membrane cup-shaped structure that envelops a region of the cytosol or an entire organelle.