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The division mechanisms above were elucidated in chloroplasts, which typically have a regular, defined shape. However, other plastid types (including proplastids, which divide extensively in ...
Fatty acids (FA), the building blocks of the plasma membrane of the pollen tube, are synthesized in the pollen plastid, a precursor organelle of the chloroplast that does not contain chlorophyll.
Early in plastid evolution, many endosymbiont-derived genes were lost (1) and others migrated to the host nuclear genome (2) through a process called endosymbiont gene transfer. Plastid-harboring ...
Neither case is iron-cast yet, but given the teams’ intense searches, these plants’ plastid genomes are either missing, well-hidden, or can be found only at very low levels.