Epithelial tissues are separated from connective tissues by thin membrane structures called basement membranes.
These membrane structures, called autophagosomes, are trafficked to lysosomes in a dynein-dependent manner along microtubules.
Inside the double membrane that surrounds the chloroplast known as the chloroplast envelope light is harvested and converted into biochemical energy by pigment protein complexes and associated proteins found in membrane structures called thylakoids.
It involves the formation of double membrane structures (called autophagosomes) around a portion of cytosol, which then fuse with lysosomes where their contents are degraded.
Upon activation of autophagy, a double membrane structure called an autophagosome forms around the cargo to be degraded, and then delivers it to the vacuole where it is broken down and recycled [12].
Proteins encoded by these genes direct the nucleation of a small membrane structure called the phagophore, which is elongated by other ATG proteins form a double-membrane vacuole called the autophagosome that encloses organelles, proteins, and cytoplasm.
Initially, small-membrane structures called isolation membranes or phagophores are observed, which gradually enclose cargo material as they grow.
During autophagy, double-membrane structures called autophagosomes facilitate the transport of cellular cargos into lysosomes for degradation [ 3- 5].
Macroautophagy, which we will refer to as autophagy, is a highly conserved catabolic process in which cytoplasmic proteins and organelles are engulfed by double-membrane structures called autophagosomes, which are then transported to lysosomes for degradation.
The hallmark of autophagy is the formation of double-membrane structures called autophagosomes, which label specifically with the marker Atg8a GFP (Fig. 3A), the Drosophila homolog of mammalian LC3 (Geng and Klionsky, 2008).
While the narrow barrel of the proteasome precludes entry of protein aggregates and organelles,, such substrates can be degraded by macroautophagy, hereafter named autophagy., Autophagy involves the formation of double-membrane structures called autophagosomes, which fuse with lysosomes to form autolysosomes where the autophagosome content is degraded by proteases and acidic pH.
