Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pone.0213591
Title: Diurnal biomarkers reveal key photosynthetic genes associated with increased oil palm yield
Authors: Neoh, B.K.
Wong, Y.C.
Teh, H.F.
Mei Ng, T.L.
Tiong, S.H.
Ooi, T.E.K.
Zain, Z.
Ersad, A.
Teh, C.K.
Lee, H.L.
Mohd Rais, S.K.
Cheah, S.S.
Chew, F.T. 
Kulaveerasingam, H.
Appleton, D.R.
Issue Date: 2019
Publisher: Public Library of Science
Citation: Neoh, B.K., Wong, Y.C., Teh, H.F., Mei Ng, T.L., Tiong, S.H., Ooi, T.E.K., Zain, Z., Ersad, A., Teh, C.K., Lee, H.L., Mohd Rais, S.K., Cheah, S.S., Chew, F.T., Kulaveerasingam, H., Appleton, D.R. (2019). Diurnal biomarkers reveal key photosynthetic genes associated with increased oil palm yield. PLoS ONE 14 (3) : e0213591. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pone.0213591
Rights: Attribution 4.0 International
Abstract: To investigate limiters of photosynthate assimilation in the carbon-source limited crop, oil palm (Elaeis guineensis Jacq.), we measured differential metabolite, gene expression and the gas exchange in leaves in an open field for palms with distinct mesocarp oil content. We observed higher concentrations of glucose 1-phosphate, glucose 6-phosphate, sucrose 6-phosphate, and sucrose in high-oil content palms with the greatest difference being at 11:00 (p-value 0.05) immediately after the period of low morning light intensity. Three important photosynthetic genes were identified using differentially expressed gene analysis (DEGs) and were found to be significantly enriched through Gene Ontology (GO) and pathway enrichment: chlorophyll a-b binding protein (CAB-13), photosystem I (PSI), and Ferredoxin-NADP reductase (FNR), particularly for sampling points at non-peak light (11:00 and 19:00), ranging from 3.3-fold (PSI) and 5.6-fold (FNR) to 10.3-fold (CAB-13). Subsequent gas exchange measurements further supported increased carbon assimilation through higher level of internal CO 2 concentration (Ci), stomatal conductance (g s ) and transpiration rate (E) in high-oil content palms. The selection for higher expression of key photosynthesis genes together with CO 2 assimilation under low light is likely to be important for crop improvement, in particular at full maturity and under high density planting regimes where light competition exists between palms. © 2019 Neoh et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Source Title: PLoS ONE
URI: https://scholarbank.nus.edu.sg/handle/10635/213703
ISSN: 19326203
DOI: 10.1371/journal.pone.0213591
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1371_journal_pone_0213591.pdf2.37 MBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

3
checked on Jan 26, 2023

Page view(s)

74
checked on Jan 26, 2023

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons