Impact of biofertilisers on iron homeostasis and grain quality in the rice variety Uma under Elevated CO2

The diminishing nutritional quality of rice with increasing concentrations of atmospheric CO 2 is currently a major global concern. The present study was designed with the objective of assessing the impact of biofertilisers on grain quality and iron homeostasis in rice under elevated CO 2 . A comple...

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Bibliographic Details
Published in:Frontiers in plant science 2023-06, Vol.14, p.1144905-1144905
Main Authors: Bhavya, M. S. P., Manju, R. V., Viji, M. M., Roy, S., Anith, K. N., Beena, R.
Format: Article
Language:English
Subjects:
biofertilizers
elevated (CO2)
iron homeostasis
PGPR - plant growth-promoting rhizobacteria
Plant Science
rice
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Summary:The diminishing nutritional quality of rice with increasing concentrations of atmospheric CO 2 is currently a major global concern. The present study was designed with the objective of assessing the impact of biofertilisers on grain quality and iron homeostasis in rice under elevated CO 2 . A completely randomised design with four treatments ([KAU, POP (control), POP+Azolla, POP+PGPR, and POP+AMF]), each replicated three times under ambient and elevated CO 2 conditions, was followed. The analysed data revealed that yield, grain quality, and iron uptake and translocation were modified in an unfavourable manner under elevated CO 2 , which was reflected in the lower quality and iron content of the grains. The response of iron homeostasis in the experimental plants to the application of biofertilisers, especially plant-growth-promoting rhizobacteria (PGPR), under elevated CO 2 strongly suggests the possibility of utilising them for designing iron management strategies for achieving higher quality in rice.
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2023.1144905