Role of Bacteria in Pedogenesis

Sharma, Pushp; Bhakri, Gaurav

doi:10.1007/978-981-13-6480-8_10

Cited by 1 publication

(1 citation statement)

References 32 publications

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“…In this beneficial interaction, the fungus receives photosynthetic carbon from colonized plants and reciprocally provides their host plants with water and nutrients, particularly phosphorus (P) and nitrogen (N) [22]. Compelling evidence indicates that AMF enhances the stress tolerance of host plants [23][24][25][26][27]. Several well-known mechanisms contribute to mycorrhizal efficiencies, such as nutrient uptake improvement, ionic homeostasis maintenance, photosynthetic capabilities enhancement, antioxidant metabolism reinforcement, cell ultrastructure preservation, and root system architecture alteration [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Resistance of Mycorrhizal Cinnamomum camphora Seedlings to Salt Spray Depends on K+ and P Uptake

Xue,

Liu,

et al. 2023

JoF

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Salt spray is a major environmental issue in coastal areas. Cinnamomum camphora is an economically important tree species that grows in the coastal areas of southern China. Arbuscular mycorrhizal fungi (AMF) can alleviate the detrimental effects of abiotic stress on host plants. However, the mechanism by which AMF mitigates the adverse effects of salt spray on C. camphora remains unclear. A pot experiment was conducted in a greenhouse, where C. camphora seedlings were exposed to four AMF regimes (inoculation with sterilized fungi, with Glomus tortuosum, Funneliformis mosseae, either alone or in combination) and three salt spray regimes (applied with distilled water, 7, and 14 mg NaCl cm−2) in order to investigate the influence on root functional traits and plant growth. The results showed that higher salt spray significantly decreased the K+ uptake, K+/Na+ ratio, N/P ratio, total dry weight, and salinity tolerance of non-mycorrhizal plants by 37.9%, 71%, 27.4%, 12.7%, and 221.3%, respectively, when compared with control plants grown under non-salinity conditions. Mycorrhizal inoculation, particularly with a combination of G. tortuosum and F. mosseae, greatly improved the P uptake, total dry weight, and salinity tolerance of plants grown under higher salt spray conditions by 51.0%, 36.7%, and 130.9%, respectively, when compared with their counterparts. The results show that AMF can alleviate the detrimental effects of salt spray on C. camphora seedlings. Moreover, an enhanced uptake of K+ and P accounted for the resistance of the plants to salt spray. Therefore, pre-inoculation with a combination of G. tortuosum and F. mosseae to improve nutrient acquisition is a potential method of protecting C. camphora plants against salt spray stress in coastal areas.

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