Fig. 6: Hypothesised mechanism of carbon transport and allocation from plants to arburscular mycorrhizal fungi. | Nature Communications

Fig. 6: Hypothesised mechanism of carbon transport and allocation from plants to arburscular mycorrhizal fungi.

From: Phytophagy impacts the quality and quantity of plant carbon resources acquired by mutualistic arbuscular mycorrhizal fungi

Fig. 6

Illustrated mechanism underpinning hexose and fatty acid biosynthesis and transport in the absence (left hand side) and presence (right hand side) of pests (aphids or plant-parasitic nematodes) that compete for host carbon resources. Critical gene upregulation upon colonisation by AM fungi indicated using red lettering, and decreased gene expression in AM fungal-colonised tissues in the presence of pests is shown in blue. MST MonoSaccharide Transporter, SWEETs Sugars Will Eventually be ExporTed, SuSy Sucrose Synthase, DIS/KASI ß-Ketoacyl-Acyl carrier protein Synthase I, RAM2 Glycerol-3-phosphate acyl transferase, STR1/2 Heterodimeric ABCG transporters. “?” represents hypothesised routes of entry for plant-derived C16:0 fatty acids into fungal cells via protein transporters or diffusion18,63,64.

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