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Authors Kodikara, KAS; Pathmasiri, R; Irfan, A; Pullukuttige, JL; Madarasinghe, SK; Farid, DG; Nico, K
Author Full Name Kodikara, Kodikara Arachchilage Sunanda; Pathmasiri, Ranasinghe; Irfan, Aziz; Pullukuttige, Jayatissa Loku; Madarasinghe, Sanduni Kanishka; Farid, Dahdouh-Guebas; Nico, Koedam
Title Oxidative stress, leaf photosynthetic capacity and dry matter content in young mangrove plant Rhizophora mucronata Lam. under prolonged submergence and soil water stress
Source PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS
Language English
Document Type Article
Author Keywords Mangroves; Reactive oxygen species; Antioxidants; Scavenging capacity; Dysfunction; Survivorship
Keywords Plus PHENOLIC-COMPOUNDS; ANTIOXIDANT PROPERTIES; DIFFERENTIAL RESPONSE; SALT TOLERANCE; ACTIVE OXYGEN; SALINITY; L.; DEFICIT; GROWTH; CHLOROPLASTS
Abstract Young plants of Rhizophora mucronata Lam. were tested for oxidative stress, photosynthetic capacity and dry matter accumulation under two abiotic stress conditions; prolonged submergence and soil water stress. The experiment of prolonged submergence was performed in field conditions with two treatment levels; 50% inundation (control) and 100% inundation levels. The experiment of soil water stress was conducted in a plant-house with four treatment levels, 100% water holding capacity (WHC) (control), 50% WHC, 25% WHC and high salinity (> 35 psu). The experimentation period was 18 months. According to the results, antioxidant activity was increased in the 100% inundation level in field conditions and in the 25% WHC, 50% WHC and high salinity levels in plant-house conditions. However, decreased radical scavenging capacity reflected by low 2,2-diphenyl-1-picrylhydrazyl (DPPH) and high IC(50)values were only observed in the 25% and 50% WHCs. Plant cell membranes were highly damaged in the 25%, 50% WHCs and high salinity level and a significant decrease in photosynthetic capacity (similar to 90% reduction) and in dry matter content ofRhizophoraplants were also observed in the same treatment levels. It was recorded that a higher proportion of dry matter is allocated to the root system under the 100% inundation level and it may be an adaptation to keep up the standing stability. Although, the antioxidant and scavenging capacities of young Rhizophora plants have increased under abiotic stress conditions, oxidative stress and its associated impacts on leaf photosynthetic capacity and dry weight contents were unavoidable under persistence of the stress.
Author Address [Kodikara, Kodikara Arachchilage Sunanda; Pullukuttige, Jayatissa Loku; Madarasinghe, Sanduni Kanishka] Univ Ruhuna, Dept Bot, Matara, Sri Lanka; [Pathmasiri, Ranasinghe] Ind Technol Inst, Herbal Technol Sect, Colombo 7, Sri Lanka; [Irfan, Aziz] Univ Karachi, Inst Sustainable Halophyte Utilizat, Karachi, Pakistan; [Kodikara, Kodikara Arachchilage Sunanda; Farid, Dahdouh-Guebas; Nico, Koedam] Vrije Univ Brussel VUB, Lab Plant Biol & Nat Management Ecol & Biodivers, Pl Laan 2, B-1050 Brussels, Belgium; [Farid, Dahdouh-Guebas] Univ Libre Bruxelles ULB, Lab Syst Ecol & Resource Management, Dept Organism Biol, Fac Sci, Av FD Roosevelt 50,CPi 2064-1, B-1050 Brussels, Belgium
Reprint Address Kodikara, KAS (corresponding author), Univ Ruhuna, Dept Bot, Matara, Sri Lanka.; Kodikara, KAS (corresponding author), Vrije Univ Brussel VUB, Lab Plant Biol & Nat Management Ecol & Biodivers, Pl Laan 2, B-1050 Brussels, Belgium.
E-mail Address sunandaruh@gmail.com
ORCID Number AZIZ, IRFAN/0000-0002-2552-3276
Funding Agency and Grant Number VLIR-UOS [ZEIN2008PR347]; University Grant commission, Sri Lanka [UGC/DRIC/UGC/DRIC/PG/2014AUG/RUH/02]; Faculty of Science, University of Ruhuna, Matara, Sri Lanka [RU/SF/RP/2015/02]
Funding Text This work described in this paper was supported by the VLIR-UOS-funded
Times Cited 1
Total Times Cited Count (WoS, BCI, and CSCD) 1
Publisher SPRINGER
Publisher City NEW YORK
Publisher Address ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES
ISSN 0971-5894
29-Character Source Abbreviation PHYSIOL MOL BIOL PLA
ISO Source Abbreviation Physiol. Mol. Biol. Plants
Publication Date AUG
Year Published 2020
Volume 26
Issue 8
Beginning Page 1609
Ending Page 1622
Digital Object Identifier (DOI) 10.1007/s12298-020-00843-w
Page Count 14
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number MX7YL
Unique Article Identifier WOS:000549656500001
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