Fungal Siderophores: Prospects and Applications

Manoharan, Sharanya; Ramalakshmi, Oviya Iyappan; Ramasamy, Sathishkumar

doi:10.1007/978-3-030-53077-8_9

Cited by 3 publications

(2 citation statements)

References 88 publications

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“…Some opportunistic pathogenic fungi, including Candida albicans and Histoplasma capsulatum, express a heme receptor Rbt5 gene required for virulence in organisms, which depends on this heme-iron uptake pathway [26,27]. Regardless of their ability to produce siderophores, fungi generally possess the siderophore transporters that enable them to uptake different types of siderophores such as bacterial coprogen or enterobactin [28]. The siderophore-iron complex is taken up by specific transporters, such as Sit1p, in the fungal cell membrane that is stored in hyphae for inclusion into spores, potentially affecting sporulation [29,30].…”

Section: Do Amf Thrive In the Presence Of Iron?mentioning

confidence: 99%

Exploring the Roles of Arbuscular Mycorrhizal Fungi in Plant–Iron Homeostasis

Rajapitamahuni,

Kang,

Lee

2023

Agriculture

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Arbuscular mycorrhizal fungi (AMF) form a vital symbiotic relationship with plants. Through their extensive hyphal networks, AMF extend the absorptive capacity of plant roots, thereby allowing plants to reach otherwise inaccessible micronutrient sources. Iron, a critical micronutrient involved in photosynthesis and other metabolic processes, often becomes inaccessible owing to its tendency to form insoluble complexes in soil. AMF symbiosis significantly ameliorates this challenge by enhancing iron uptake and homeostasis in plants, altering root architecture, and producing root exudates that improve iron solubility. Moreover, the interaction with diverse soil bacteria, particularly plant growth-promoting rhizobacteria, can potentiate the benefits of AMF symbiosis. Siderophores are low-molecular-weight chelators with iron-binding capacities produced by various microorganisms and plant roots. They play pivotal roles in regulating intracellular iron and have been identified in different mycorrhizal associations, including AMF. While molecular mechanisms behind AMF-mediated iron uptake have been partially explored, the intricate networks involving AMF, plants, siderophores, and other soil microbiota are largely unknown. This review focuses on the multifaceted roles of AMF in plant–iron homeostasis, interactions with soil bacteria, and the potential of siderophores in these processes, emphasizing the possibilities for harnessing these relationships for sustainable agriculture and enhancing plant productivity.

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Section: Do Amf Thrive In the Presence Of Iron?mentioning

confidence: 99%

Exploring the Roles of Arbuscular Mycorrhizal Fungi in Plant–Iron Homeostasis

Rajapitamahuni,

Kang,

Lee

2023

Agriculture

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“…Haselwandter (2008) explained that most fungi synthesize siderophores as chelating agents, forming soluble complexes with Fe3+ with very high stability constants, thereby dissolving iron Fe. Manoharan et al (2021) stated that siderophores are secondary metabolites produced by arbuscular mycorrhizal fungi that are important for accessing host cellular components for growth and development. Siderophores produced by arbuscular mycorrhizal fungi have roles such as extracellular iron acquisition, intracellular iron storage, conidia iron acquisition, and storage during infection.…”

Section: Effect Of Treatment On Iron (Fe) Contentmentioning

confidence: 99%

The role of arbuscular mycorrhizal fungi in phytoremediation of heavy metals and their effect on the growth of Pennisetum purpureum cv. Mott on gold mine tailings in Muara Bungo, Jambi, Indonesia

et al. 2022

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Abstract. Putra B, Warly L, Evitayani, Utama BP. 2021. The role of arbuscular mycorrhizal fungi in phytoremediation of heavy metals and their effect on the growth of Pennisetum purpureum cv. Mott on gold mine tailings in Muara Bungo, Jambi, Indonesia. Biodiversitas 23: 478-485. The increase of heavy metal pollution in the soil results from human activities such as gold mining, which impacts human and environmental health problems. Phytoremediation is an environmentally friendly, inexpensive, and efficient solution to overcome environmental damage caused by heavy metal contamination. Inoculation of AMF in dwarf Napier grass can reduce the level of metal contaminants in soil and subsequently its absorption in plant tissue. This study investigates the effect of arbuscular mycorrhizal fungi (AMF) on dwarf Napier grass (Pennisetum purpureum cv. Mott) plant growth and heavy metal remediation rates. The experiment was a completely randomized design with 4 levels of AMF inoculation (0, 5, 10, and 15 g/pot) with 5 repetitions. After eight weeks of potting experiments, shoot and root biomass, plant growth, heavy metal content in potting media were assessed. The results revealed that AMF inoculation of 10 g/pot exhibited a higher growth yield of dwarf Napier grass compared to other treatments (plant height (p<0.01), leaf length (P<0.01), leaf width (P<0.01), stem diameter (P<0.01) and plant fresh weight (P<0.01)), but had no significant effect on the number of leaves and number of shoots (P>0.05). AMF (10 g/pot) significantly affected root growth of dwarf Napier grass (root length (P<0.01), number of roots (P<0.05), and root fresh weight (P<0.01)). The results also showed that AMF increased the uptake of Al, Co, Cr, and Fe significantly in the growing media (Al (P<0.01), Co (P<0.05), Cr (P<0.01), Fe (P<0.05) but no significant effect on Pb (P>0.05). This study concluded that AMF effectively increased the growth of dwarf Napier grass and reduced heavy metal contaminants on gold mines tailings.

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