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Understanding the Relationship between Water Availability and Biosilica Accumulation in Selected C4 Crop Leaves: An Experimental Approach

OAR@ICRISAT

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Relation http://oar.icrisat.org/12578/
https://www.mdpi.com/2223-7747/11/8/1019
https://doi.org/10.3390/plants11081019
 
Title Understanding the Relationship between Water Availability and Biosilica Accumulation in Selected C4 Crop Leaves: An Experimental Approach
 
Creator D’Agostini, F
Vadez, V
Kholova, J
Ruiz-Pérez, J
Madella, M
Lancelotti, C
 
Subject Water Resources
 
Description Biosilica accumulation in plant tissues is related to the transpiration stream, which in turn depends on water availability. Nevertheless, the debate on whether genetically and environmentally controlled mechanisms of biosilica deposition are directly connected to water availability is still open. We aim at clarifying the system which leads to the deposition of biosilica in Sorghum bicolor, Pennisetum glaucum, and Eleusine coracana, expanding our understanding of the physiological role of silicon in crops well-adapted to arid environments, and simultaneously advancing the research in archaeological and paleoenvironmental studies. We cultivated ten traditional landraces for each crop in lysimeters, simulating irrigated and rain-fed scenarios in arid contexts. The percentage of biosilica accumulated in leaves indicates that both well-watered millet species deposited more biosilica than the water-stressed ones. By contrast, sorghum accumulated more biosilica with respect to the other two species, and biosilica accumulation was independent of the water regime. The water treatment alone did not explain either the variability of the assemblage or the differences in the biosilica accumulation. Hence, we hypothesize that genetics influence the variability substantially. These results demonstrate that biosilica accumulation differs among and within
 
Publisher MDPI
 
Date 2022-04-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by
 
Identifier http://oar.icrisat.org/12578/1/Plants_11_1-18_2022.pdf
D’Agostini, F and Vadez, V and Kholova, J and Ruiz-Pérez, J and Madella, M and Lancelotti, C (2022) Understanding the Relationship between Water Availability and Biosilica Accumulation in Selected C4 Crop Leaves: An Experimental Approach. Plants (TSI), 11 (8). pp. 1-18. ISSN 2223-7747