Commentary - Journal of Agriculture (2022) Volume 5, Issue 2

Short note on Apicoplast: A Review of the Derived Plastid of Apicomplexan Parasites

Masahiro Onuma*

University of Surrey, United Kingdom

*Corresponding Author:
Masahiro Onuma
University of Surrey, United Kingdom
E-mail: [email protected]

Received: 01-Apr-2022, Manuscript No. jagri-22-42447; Editor assigned: 04-Apr-2022, PreQC No. jagri-22- 42447(PQ); Reviewed: 17-Apr-2022, QC No. jagri-22-42447; Revised: 22- Apr-2020, Manuscript No. jagri-22- 42447(R); Published: 29-Apr-2022, DOI: 10.37532/jagri.2022.5(2).54-55


The apicoplast could be a granule organ, homologous to chloroplasts of plants, that’s found in apicomplexan parasites like the anorectic agents of protozoal infection Plasmodium spp. It happens throughout the Apicomplexa and is AN ancient feature of this cluster nonheritable by the process of endosymbiosis. Like plant chloroplasts, apicoplasts square measure semi-autonomous with their own order and expression machinery. Additionally, apicoplasts import numerous proteins encoded by nuclear genes. These nuclear genes for the most part derive from the endosymbiont through a method of intracellular sequence relocation. The exact role of a granule in parasites is unsure however early clues indicate synthesis of lipids, protoheme and isoprenoids as prospects. The assorted metabolic processes of the apicoplast square measure doubtless wonderful targets for drug therapy.


methyl cinnamate • β-carbolines tribulusterine • anthocyanins • flavonoids • bioassay.


The apicomplexan granule was a discovery waiting to be made. With savvy it looks unbelievable that such an organ might have ciao hid its identity in cells that have received the maximum amount scientific attention as Plasmodium. if truth be told these plastids, noted as apicoplasts in apicomplexan parasites, had been observed however not recognized as plastids [1-2]. As early as the Sixties lepton microscopists had delineated the ultrastructure of a mysterious multi-membrane-bound organelle from Plasmodium spp. additionally as from all alternative major teams of apicomplexan parasites (see McFadden et al., 1997 for review). More, circular organ. DNAs, that we have a tendency to currently understand belong to the apicoplast, were observed, measured, and cruciate secondary structures noted (formed by inverted repeats of rRNA genes, a classic feature of granule genomes) (Kilejian, 1975; Dore et al., 1983; Borst et al., 1984) [3]. We have a tendency to be even aware of the sensitivity of Plasmodium to a spread of plastidtargeting antibiotics (though these were assumed to focus on the parasite mitochondrion). However, none of those observations might have moderately galvanized anyone to claim that Plasmodium is descended from chemical process stock which it still maintains a granule organ. Final proof of a granule organ anticipated shaping the location of this plastid-like polymer. Maternal inheritance of this polymer circle powerfully argued that it had been situated in a non-nuclear organ (Creasey et al., 1994). A lack of co-purification with the chondriosome (converse to the 6kb extra-chromosomal DNA) told United States that this organelle was separate to the chondriosome (Wilson et al., 1992). So a relict granule appeared most likely. Suddenly granule recognizing within the previous ultrastructural literature became a well-liked pursuit of the many, and the mysterious multi-membrane organelles quickly became the ‘odds-on bet’. in place mating experiments in Toxoplasma gondii victimization probes complementary to the plastid order or its sequence transcripts offered the ultimate nail in the coffin by shaping the neighborhood of those molecules as a multi-membrane-bound compartment distinct from the chondriosome or alternative organelles (McFadden et al., 1996; Köhler et al., 1997). Genomic information had provided the primary hint of a granule in Apicomplexa, and additionally provided the tools for its identification at the cell level. Two immediate queries were raised by this discovery. What’s the origin of the apicoplast? What’s the perform of the apicoplast in parasites? Once more genomic information provided the key springboard for attempt these queries. Addressing the first question, phlylogeneticists have endlessly poured over apicoplast molecular information for hints of the supply of this granule ever since the Wilson group’s 1st partial sequences of the 35kb circular polymer were created [5].


Plastid sequence information powerfully support that each one apicoplasts share a typical origin. Lang-Unnasch and associates constructed biological process trees from apicoplast-encoded rRNA genes representing abundant of the range of the Apicomplexa (Lang-Unnasch et al., 1998). These tree topologies primarily match those derived from nuclear sequences suggesting that the apicoplast has been co-evolving with the host cell throughout apicomplexan diversification. additional proof for all apicoplasts sharing a common origin comes from the hanging similarities of apicoplast genomes. Plasmodium falciparum and Toxoplasma gondii, representing haemosporins and coccidians severally, have close to identical granule genomes in terms of sequence content.

Indeed, molecular and/or ultrastructural data indicates that AN apicoplast is gift altogether major apicomplex [6].



Conflict of Interests



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