Table 2 Allelochemicals and target

Phenolic compounds

4,4’-dihydroxybiphenyl

Nostoc insulare Geitlerinema sp.

Cyanobacteria Bacteria

[66, 67]

Fungi

Fatty acid

Timnodonic acid and stearidonic acid

Red algae : Neodilsea yendoana, Palmaria palmata, Chondrus yendoi, and Ptilota filicina

Eukaryotic microalgae red tide planktons (Chattonella antiqua )

[68, 69]

α-linolenic, oleic, linoleic, and palmitic acids

Botryococcus braunii

Copepoda (Nauplius sp., Eodiaptomus sp., Cyclopina sp. Cladocera (Bosmina sp., Diaphanosoma sp.) Rotifera (Keratella sp).

[70]

Alkaloids

Nostocarboline

Nostoc sp , Nodularia sp.

Microcystis aeruginosa Kirchneriella contorta Synechococcus Gram- negative bacteria

[71, 72]

Dimers of Nostocarboline

Gram positive (methicillin-resistant Staphylococcus aureus

[73]

12-epi-hapalindole E isonitrile 12-epi-hapalindole F

Fischerella sp Hapalosiphon sp

Escherichia coli Microcystis (strains NPLS 1, NPJB 1 and CENA 62) Synechococcus PCC 7942.

[74, 75]

Ambiguines Ambiguine H isonitrile and ambiguine I isonitrile)

Fischerella sp.

Escherichia coli ESS K-12 Staphyloccocus albus a Bacillus subtilis a Saccharomyces cereisiae Candida albicans

[76]

Calothrixin

Calaothrix sp

Bacillus subtilis Plasmodium falciparum

[74]

Fischerellins A

Fischerella sp

Synechococcus PCC 7942.

[75]

Welwitindolinones

Hapalosiphon welwitschii Westiella intricata

Antifungal and insecticidal activity

[77]

Peptides

microcystin-LR

Cyanobacteria

Chlamydomonas reinhardtii,

[61]

Polyunsaturated aldehydes (PUAs)

Decatrienal

Diatom (Thalassiosira sp.)

Copepods Phytoplankton Bacteria

[78]

Octatrienal and Heptadienal

Diatomn (Skeletonema marinoi Thalassiosira sp)

Copepods Phytoplankton

Terpenoids

Comnostins

Nostoc commune

Antibacterial activity against Staphylococcus epidermis

[79]