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Authors Chavarria, MR; Wherley, B; Jessup, R; Chandra, A
Author Full Name Chavarria, Manuel R.; Wherley, Benjamin; Jessup, Russell; Chandra, Ambika
Title Leaf anatomical responses and chemical composition of warm-season turfgrasses to increasing salinityy
Source CURRENT PLANT BIOLOGY
Language English
Document Type Article
Author Keywords Scanning electron microscopy; Energy dispersive spectroscopy; Salinity stress; Ion excretion; Warm-season; Turfgrasses
Keywords Plus IRRIGATION; WATER
Abstract As population growth and demands for potable water increase, use of low-quality or effluent sources of irrigation is becoming more prevalent. Because these water sources often contain elevated levels of dissolved salts, turfgrasses must increasingly possess mechanisms for coping with salinity stress. The objectives of this research were to utilize Scanning Electron Microscopy (SEM) combined with Energy Dispersive X-ray Spectroscopy (EDS) to explore and characterize anatomical and physiological responses of four salinity-tolerant cultivars/experimental lines of warm-season turfgrass species including bermudagrass (Cynodon ssp.), zoysiagrass (Zoysia ssp.), St. Augustinegrass (Stenotaphrum secundatum), and seashore paspalum (Paspalum vaginatum) to salinity stress. Grasses were grown in the greenhouse under two levels of salinity stress (control = 2.5 and 30 dSm(-1)) prior to examination of adaxial and cross-sectional leaf surfaces using SEM and EDS. St. Augustinegrass leaf anatomy did not differ between control and elevated salinity. In bermudagrass, salt glands were observed at the 30 dSm(-1) salinity level, however, none were detected at the 2.5 dSm(-1) level. Zoysiagrass appeared to possess constitutive salt gland development, which although were present under 2.5 dSm(-1) salinity, noticeably increased in density with increasing salinity. Seashore paspalum did not possess salt glands, but rather, exhibited bladder-like structures, in which EDS detected high levels of Na following salinity stress. These findings highlight differences in anatomical responses to salinity stress among warm-season turfgrass species. The information may aid breeders and physiologists in developing a more comprehensive understanding of warm-season turfgrass anatomical responses to salinity stress.
Author Address [Chavarria, Manuel R.; Wherley, Benjamin; Jessup, Russell] Texas A&M Univ, Dept Soil & Crop Sci, College Stn, TX 77843 USA; [Chandra, Ambika] Texas A&M AgriLife Res Ctr, Dallas, TX 75252 USA; [Chavarria, Manuel R.] Olds Coll, Prairie Turfgrass Res Ctr, Calgary, AB T4H 1R6, Canada
Reprint Address Chavarria, MR (corresponding author), Texas A&M Univ, Dept Soil & Crop Sci, College Stn, TX 77843 USA.; Chavarria, MR (corresponding author), Olds Coll, Prairie Turfgrass Res Ctr, Calgary, AB T4H 1R6, Canada.
E-mail Address mchavarria@oldscollega.ca
Funding Agency and Grant Number U.S. Department of Agriculture, National Institute for Food and Agriculture Specialty Crops Research Initiative [2010-51181-21064]
Funding Text This work was funded through support from the U.S. Department of Agriculture, National Institute for Food and Agriculture Specialty Crops Research Initiative under award no. 2010-51181-21064
Times Cited 1
Total Times Cited Count (WoS, BCI, and CSCD) 1
Publisher ELSEVIER
Publisher City AMSTERDAM
Publisher Address RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
29-Character Source Abbreviation CURR PLANT BIOL
ISO Source Abbreviation Curr. Plant Biol.
Publication Date JUN
Year Published 2020
Volume 22
Article Number 100147
Digital Object Identifier (DOI) 10.1016/j.cpb.2020.100147
Page Count 8
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number LT3DO
Unique Article Identifier WOS:000536951200002
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