Short answers, pulled from the story.
Hugo von Mohl made the first definitive description of the chloroplast in 1837, calling it a grain of chlorophyll within the green plant cell. This discovery marked the beginning of understanding how plants harness light.
Hugo von Mohl made the first definitive description of the chloroplast in 1837, calling it a grain of chlorophyll within the green plant cell. This discovery marked the beginning of understanding how plants harness light.
The chloroplasts of Paulinella chromatophora have a genome of about 1 million base pairs, which is one-third the size of Synechococcus genomes. These chloroplasts encode only around 850 proteins.
Chloroplast DNA was first identified biochemically in 1959 and confirmed by electron microscopy in 1962. The existence of chloroplast DNA revealed that the chloroplast is genetically semi-autonomous.
The Calvin cycle takes place in the stroma, the protein-rich, alkaline, aqueous fluid within the inner chloroplast membrane. This process fixes carbon dioxide into sugar molecules using the enzyme RuBisCO.
Chloroplasts play a crucial role in plant immunity by acting as key players in the plant's immune response alongside the nucleus, cell membrane, and endoplasmic reticulum. They stimulate immune responses by producing reactive oxygen species and defense molecules like salicylic acid.