Water stress effects on guard cell anatomy and the mechanical advantage of the epidermal cells

Spence, Richard D.; Wu, Hsin‐I; Sharpe, Peter J. H.; Clark, Katie

doi:10.1111/1365-3040.ep11611639

Cited by 74 publications

(30 citation statements)

References 18 publications

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“…On stomata length, the result showed that IT and AR tend to have higher stomata length than CF. It probably indicated the adaptation of rice plant to water limited condition as reported by Spence et al (1986) and Kramer (1988). The present study showed that Si application clearly gave the positive effect on increasing stomata density on Ciherang variety throughout observation, which agreed with the previous results found in West Java (Siregar et al, 2016).…”

Section: Discussionsupporting

confidence: 92%

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

Siregar¹,

Sipahutar²,

Husnain³

et al. 2016

JAS

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Rice cultivation in our study site at Central Java, Indonesia, is constrained by water scarcity and blast disease problems. A field experiment was thus conducted to evaluate the effect of water management and silicon (Si) application (with 500 kg ha -1 of silica gel) on improving rice growth and productivity and blast disease infection in Jakenan, Central Java. Split plot in randomized complete block design with 4 replications was used. The results showed that two water saving methods, intermittent (IT) and aerobic rice (AR) increased rice yield compared to conventional flooding water management. Further, IT showed better root growth and hence lodging resistance and decreased blast disease infection. IT had higher yield potential compared to AR although the yield of IT and AR were not statistically different. Si application gave significant effect on reducing leaf and neck blast infection and also increased stomata density (p < 0.01) in all water treatments. Si application did not result in increased yield but exhibited potential towards improving rice plant growth and production. Since Si fertilizer was never used in rice cultivation in Indonesia, the study reveals that IT combine with Si application was a suitable management for rice production in dry season in water limited Central Java region.

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Section: Discussionsupporting

confidence: 92%

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

Siregar¹,

Sipahutar²,

Husnain³

et al. 2016

JAS

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“…Leaf size responded to salinity as expected: smaller leaves in higher salinities. Water deficit can affect leaf size by decreasing cell size and causing an increase in stomatal density (Quarrie & Jones, 1977;Spence, Wu, Sharpe, & Clark, 1986;Martínez, Silva, Ledent, & Pinto, 2007;Xu & Zhou, 2008). A study on L. racemosa and A. germinans did not show reductions of stomatal density with increases in salinity (Lovelock & Feller, 2003), which was confirmed by Schwarzbachl and Ricklefs (2001).…”

Section: Discussionmentioning

confidence: 69%

Stomatal density, leaf area and plant size variation of Rhizophora mangle (Malpighiales: Rhizophoraceae) along a salinity gradient in the Mexican Caribbean

Peel

Mandujano

López‐Portillo

et al. 2017

RBT

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Abstract:In community ecology, the knowledge of abiotic factors, that determine intraspecific variability in ecophysiological and functional traits, is important for addressing major questions, such as plant community assembly and ecosystem functioning. Mangroves have several mechanisms of resistance to salinity and most species exhibit some xeromorphic features in order to conserve water. Leaf area and stomatal density play an important role in maintaining water balance, and gas exchange is regulated by their aperture and density, two traits that vary intraspecifically in response to environmental conditions, such as water stress and salinity. In this study, we evaluated the effects of salinity on stomatal density, leaf area and plant size in R. mangle and we tested for associations among the three variables, across three sites along a natural salinity gradient in the Xel-Há Park, Quintana Roo, Mexico. We hypothesized that high salinity sites would produce smaller plants, with smaller leaves, and fewer stomata. Three sampling sites with different environmental conditions were chosen and salinities were monitored monthly. A total of 542 plants were tagged and tree heights and diameters were measured for each individual within each of the three sampling sites. Three leaves from 20 trees from each site were measured to determine leaf area. Stomatal densities were determined in each leaf using nail polish casts, examining ten 1 mm squares per leaf under an optical microscope. A principal component analysis was used to assess association between tree height, leaf area, and stomatal density for each plot. The salinity gradient was reflected in plant size, producing smaller plants at the higher salinity site. The largest leaves were found at the low salinity site (51.2 ± 24.99 cm 2 ). Leaf length was not correlated to plant size (LL vs. tree height: r= 0.02, P= 0.8205; LL vs. trunk diameter: r= 0.03, P= 0.7336), so we concluded that leaf length is an environmentally plastic trait of red mangroves that may vary as a function of environmental conditions, such as hydric stress caused by elevated salinity. The larger leaves from the low salinity site had lower densities of stomata (65.0 stomata.mm 2 SD= 12.3), and increasing salinities did not decrease stomatal density (intermediate salinity site: 73.4 stomata.mm 2 SD= 13.5; high salinity site: 74.8 stomata.mm 2 SD= 17.3). Our results confirm that stomatal density is inversely related to leaf area (r= -0.29, P < 0.001), especially leaf width (r= -0.31, P < 0.001), and that salinity may increase stomatal density by causing reduction of leaf size. Rev. Biol. Trop. 65 (2): 701-712. Epub 2017 June 01.

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“…At the same time, it was determined that drought stress reduces the stomata sizes of maize plants, and gas exchange rates decreased in parallel with increasing drought stress [48]. A reduction of stomata sizes under salt stress protects the balance between photosynthesis and carbon intake, and prevents excessive water loss with transpiration [49]. These processes give the plant a xerophytic character [50] and help it to adapt to drought conditions caused by salt stress [51].…”

Section: Discussion Of Resultsmentioning

confidence: 99%

The Mitigation Effects of Exogenous Hydrogen Peroxide when Alleviating Seed Germination and Seedling Growth Inhibition on Salinity-Induced Stress in Barley

Kılıç¹,

Kahraman²

2016

Pol. J. Environ. Stud.

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Water stress effects on guard cell anatomy and the mechanical advantage of the epidermal cells

Cited by 74 publications

References 18 publications

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

Influence of Water Management and Silica Application on Rice Growth and Productivity in Central Java, Indonesia

Stomatal density, leaf area and plant size variation of Rhizophora mangle (Malpighiales: Rhizophoraceae) along a salinity gradient in the Mexican Caribbean

The Mitigation Effects of Exogenous Hydrogen Peroxide when Alleviating Seed Germination and Seedling Growth Inhibition on Salinity-Induced Stress in Barley

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