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How tree decline varies the anatomical features in Quercus brantii

Drought has serious effects on forests, especially semi-arid and arid forests, around the world. Zagros Forest in Iran has been severely affected by drought, which has led to the decline of the most common tree species, Persian oak (Quercus brantii). The objective of this study was to determine the...

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Main Authors: Soheili, Forough, Abdul-Hamid, Hazandy, Almasi, Isaac, Heydari, Mehdi, Tongo, Afsaneh, Woodward, Stephen, Naji, Hamid Reza
Format: Article
Published: Multidisciplinary Digital Publishing Institute 2023
Online Access:http://psasir.upm.edu.my/id/eprint/108211/
https://www.mdpi.com/2223-7747/12/2/377
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spelling my.upm.eprints.1082112024-09-23T01:54:57Z http://psasir.upm.edu.my/id/eprint/108211/ How tree decline varies the anatomical features in Quercus brantii Soheili, Forough Abdul-Hamid, Hazandy Almasi, Isaac Heydari, Mehdi Tongo, Afsaneh Woodward, Stephen Naji, Hamid Reza Drought has serious effects on forests, especially semi-arid and arid forests, around the world. Zagros Forest in Iran has been severely affected by drought, which has led to the decline of the most common tree species, Persian oak (Quercus brantii). The objective of this study was to determine the effects of drought on the anatomical structure of Persian oak. Three healthy and three declined trees were sampled from each of two forest sites in Ilam Forest. Discs were cut at breast height, and three sapwood blocks were taken near the bark of each tree for sectioning. The anatomical characteristics measured included fiber length (FL), fiber wall thickness (FWT), number of axial parenchymal cells (NPC), ray number (RN), ray width (RW), and number of calcium oxalate crystals. Differences between healthy and declined trees were observed in the abundance of NPC and in RN, FL, and FWT, while no differences occurred in the number of oxalate crystals. The decline had uncertain effects on the FL of trees from sites A and B, which showed values of 700.5 and 837.3 μm compared with 592.7 and 919.6 μm in healthy trees. However, the decline resulted in an increase in the FWT of trees from sites A and B (9.33 and 11.53 μm) compared with healthy trees (5.23 and 9.56 μm). NPC, RN, and RW also increased in declined individuals from sites A and B (28.40 and 28.40 mm−1; 41.06 and 48.60 mm−1; 18.60 and 23.20 μm, respectively) compared with healthy trees (20.50 and 19.63 mm−2; 31.60 and 28.30 mm−2; 17.93 and 15.30 μm, respectively). Thus, drought caused measurable changes in the anatomical characteristics of declined trees compared with healthy trees. Multidisciplinary Digital Publishing Institute 2023 Article PeerReviewed Soheili, Forough and Abdul-Hamid, Hazandy and Almasi, Isaac and Heydari, Mehdi and Tongo, Afsaneh and Woodward, Stephen and Naji, Hamid Reza (2023) How tree decline varies the anatomical features in Quercus brantii. Plants, 12 (2). art. no. 377. pp. 1-13. ISSN 2223-7747 https://www.mdpi.com/2223-7747/12/2/377 10.3390/plants12020377
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Drought has serious effects on forests, especially semi-arid and arid forests, around the world. Zagros Forest in Iran has been severely affected by drought, which has led to the decline of the most common tree species, Persian oak (Quercus brantii). The objective of this study was to determine the effects of drought on the anatomical structure of Persian oak. Three healthy and three declined trees were sampled from each of two forest sites in Ilam Forest. Discs were cut at breast height, and three sapwood blocks were taken near the bark of each tree for sectioning. The anatomical characteristics measured included fiber length (FL), fiber wall thickness (FWT), number of axial parenchymal cells (NPC), ray number (RN), ray width (RW), and number of calcium oxalate crystals. Differences between healthy and declined trees were observed in the abundance of NPC and in RN, FL, and FWT, while no differences occurred in the number of oxalate crystals. The decline had uncertain effects on the FL of trees from sites A and B, which showed values of 700.5 and 837.3 μm compared with 592.7 and 919.6 μm in healthy trees. However, the decline resulted in an increase in the FWT of trees from sites A and B (9.33 and 11.53 μm) compared with healthy trees (5.23 and 9.56 μm). NPC, RN, and RW also increased in declined individuals from sites A and B (28.40 and 28.40 mm−1; 41.06 and 48.60 mm−1; 18.60 and 23.20 μm, respectively) compared with healthy trees (20.50 and 19.63 mm−2; 31.60 and 28.30 mm−2; 17.93 and 15.30 μm, respectively). Thus, drought caused measurable changes in the anatomical characteristics of declined trees compared with healthy trees.
format Article
author Soheili, Forough
Abdul-Hamid, Hazandy
Almasi, Isaac
Heydari, Mehdi
Tongo, Afsaneh
Woodward, Stephen
Naji, Hamid Reza
spellingShingle Soheili, Forough
Abdul-Hamid, Hazandy
Almasi, Isaac
Heydari, Mehdi
Tongo, Afsaneh
Woodward, Stephen
Naji, Hamid Reza
How tree decline varies the anatomical features in Quercus brantii
author_facet Soheili, Forough
Abdul-Hamid, Hazandy
Almasi, Isaac
Heydari, Mehdi
Tongo, Afsaneh
Woodward, Stephen
Naji, Hamid Reza
author_sort Soheili, Forough
title How tree decline varies the anatomical features in Quercus brantii
title_short How tree decline varies the anatomical features in Quercus brantii
title_full How tree decline varies the anatomical features in Quercus brantii
title_fullStr How tree decline varies the anatomical features in Quercus brantii
title_full_unstemmed How tree decline varies the anatomical features in Quercus brantii
title_sort how tree decline varies the anatomical features in quercus brantii
publisher Multidisciplinary Digital Publishing Institute
publishDate 2023
url http://psasir.upm.edu.my/id/eprint/108211/
https://www.mdpi.com/2223-7747/12/2/377
_version_ 1811686008747458560
score 13.211869

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