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Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo

Oryza sativa L. or commonly known as rice belongs to the family of Poaceae. In Malaysia, rice is normally cultivated either as lowland or upland rice. The present study was undertaken with the objective to characterise and document the variations in anatomical traits of leaf, midrib and the root of...

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Main Authors:	Renee Priscilla Trawas, Sylvester Embuas, Freddy Yeo, Kuok San, Zazevia, Frank Clifton, Meekiong, Kalu, Zinnirah, Shabdin, Lai, Lee San
Format:	Article
Language:	English
Published:	Springer Nature 2025
Subjects:	Q Science (General) S Agriculture (General)
Online Access:	http://ir.unimas.my/id/eprint/47520/1/Sylvester-Embuas_et.al_2025.pdf http://ir.unimas.my/id/eprint/47520/ https://link.springer.com/article/10.1007/s42535-025-01192-3 https://doi.org/10.1007/s42535-025-01192-3
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id	my.unimas.ir-47520
record_format	eprints
spelling	my.unimas.ir-475202025-02-12T07:09:27Z http://ir.unimas.my/id/eprint/47520/ Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo Renee Priscilla Trawas, Sylvester Embuas Freddy Yeo, Kuok San Zazevia, Frank Clifton Meekiong, Kalu Zinnirah, Shabdin Lai, Lee San Q Science (General) S Agriculture (General) Oryza sativa L. or commonly known as rice belongs to the family of Poaceae. In Malaysia, rice is normally cultivated either as lowland or upland rice. The present study was undertaken with the objective to characterise and document the variations in anatomical traits of leaf, midrib and the root of 22 lowland and 22 upland rice accessions. The leaf, midrib and root anatomy of the lowland and upland rice accessions have the same fundamental anatomical structure. Stomata were found abundant on the abaxial surface as compared to the adaxial surface in general. It is interesting to note that the upland rice accessions, in general, had higher stomatal density on the adaxial surface. In addition, the upland rice accessions, in general, had larger root and stele diameters as compared to lowland rice accessions. The variation in root diameter is associated to the changes in the number and size or width of cortical cells and stele diameter. Wider stele may allow higher plant water status under water deficit, due to higher hydraulic conductivity. In addition, greater xylem diameter (indicated by larger stele diameters) is linked to better axial conductance, which improved rice’s ability to absorb and hold more water during water-limiting conditions. These traits are possibly advantageous for upland rice for efficient water capture, especially under water-deficit stress. Springer Nature 2025 Article PeerReviewed text en http://ir.unimas.my/id/eprint/47520/1/Sylvester-Embuas_et.al_2025.pdf Renee Priscilla Trawas, Sylvester Embuas and Freddy Yeo, Kuok San and Zazevia, Frank Clifton and Meekiong, Kalu and Zinnirah, Shabdin and Lai, Lee San (2025) Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo. Vegetos. pp. 1-9. ISSN 2229-4473 https://link.springer.com/article/10.1007/s42535-025-01192-3 https://doi.org/10.1007/s42535-025-01192-3
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	Q Science (General) S Agriculture (General)
spellingShingle	Q Science (General) S Agriculture (General) Renee Priscilla Trawas, Sylvester Embuas Freddy Yeo, Kuok San Zazevia, Frank Clifton Meekiong, Kalu Zinnirah, Shabdin Lai, Lee San Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
description	Oryza sativa L. or commonly known as rice belongs to the family of Poaceae. In Malaysia, rice is normally cultivated either as lowland or upland rice. The present study was undertaken with the objective to characterise and document the variations in anatomical traits of leaf, midrib and the root of 22 lowland and 22 upland rice accessions. The leaf, midrib and root anatomy of the lowland and upland rice accessions have the same fundamental anatomical structure. Stomata were found abundant on the abaxial surface as compared to the adaxial surface in general. It is interesting to note that the upland rice accessions, in general, had higher stomatal density on the adaxial surface. In addition, the upland rice accessions, in general, had larger root and stele diameters as compared to lowland rice accessions. The variation in root diameter is associated to the changes in the number and size or width of cortical cells and stele diameter. Wider stele may allow higher plant water status under water deficit, due to higher hydraulic conductivity. In addition, greater xylem diameter (indicated by larger stele diameters) is linked to better axial conductance, which improved rice’s ability to absorb and hold more water during water-limiting conditions. These traits are possibly advantageous for upland rice for efficient water capture, especially under water-deficit stress.
format	Article
author	Renee Priscilla Trawas, Sylvester Embuas Freddy Yeo, Kuok San Zazevia, Frank Clifton Meekiong, Kalu Zinnirah, Shabdin Lai, Lee San
author_facet	Renee Priscilla Trawas, Sylvester Embuas Freddy Yeo, Kuok San Zazevia, Frank Clifton Meekiong, Kalu Zinnirah, Shabdin Lai, Lee San
author_sort	Renee Priscilla Trawas, Sylvester Embuas
title	Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
title_short	Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
title_full	Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
title_fullStr	Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
title_full_unstemmed	Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo
title_sort	low variations in anatomical characters of lowland and upland rice from sarawak, malaysian borneo
publisher	Springer Nature
publishDate	2025
url	http://ir.unimas.my/id/eprint/47520/1/Sylvester-Embuas_et.al_2025.pdf http://ir.unimas.my/id/eprint/47520/ https://link.springer.com/article/10.1007/s42535-025-01192-3 https://doi.org/10.1007/s42535-025-01192-3
_version_	1825166840473583616
score	13.239859

Low variations in anatomical characters of lowland and upland rice from Sarawak, Malaysian Borneo

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