Study of effects of seawater salt spray on growth, chlorophyll fluorescence and chlorophyll content in three coastal species of Morocco

Kouali, A.

doi:10.26872/jmes.2017.8.12.462

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…The intensity of wind speed increases with the distance above the ground (Grace 1977;Jaffe and Forbes 1993). While wind can be damaging by itself, it is particularly damaging to plants along ocean coastlines because it contains aerosolized oceanic salt spray (Boyce 1954;Barbour 1978;Cheplick and Demetri 1999;Griffiths et al 2006;Kouali et al 2017;Du and Hesp 2020). Across the range of the coastal perennial ecotype, wind speeds and wave energy that drive salt spray are greater in the spring (April, May) than the summer (July, August) (Gilliam 2002; Garcia-Reyes and Largier 2012).…”

Section: The Environmental Factors Responsible For the Cline In Plant...mentioning

confidence: 99%

Section: S1mentioning

confidence: 99%

“…The intensity of wind speed increases with the distance above the ground (Grace 1977;Jaffe and Forbes 1993). While wind can be damaging by itself, it is particularly damaging to plants along ocean coastlines because it contains aerosolized oceanic salt spray (Boyce 1954;Barbour 1978;Cheplick and Demetri 1999;Griffiths et al 2006;Kouali et al 2017;Du and Hesp 2020). Unlike stress caused by soil salinity, salt spray primarily damages plants by landing directly on aboveground tissues and entering through stomata and small cracks in the cuticle (Grieve andPitman 1978;Du and Hesp 2020).…”

Section: The Environmental Factors Responsible For the Cline In Plant...mentioning

confidence: 99%

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Multiple clines within an ecotype of the yellow monkeyflower, Mimulus guttatus

Zambiasi,

Lowry

2023

Preprint

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Premise: A key goal of evolutionary biologists is to understand how and why adaptive genetic variation is partitioned within species. In the yellow monkeyflower, Mimulus guttatus (syn. Erythranthe guttata), coastal perennial populations collectively constitute a single genetically and morphologically differentiated ecotype. While the distinctiveness of the coastal ecotype has now been well documented, there is also variation in environmental factors across the range of the coastal ecotype that could drive differentiation among its component populations in a more continuous way. Methods: Based on previous observations of a potential cline within this ecotype, we quantified plant height across coastal perennial accessions from 69 total populations in two greenhouse common garden experiments. To evaluate possible environmental factors driving the relationship between plant height and latitude, we regressed height against multiple climatic factors, including temperature, precipitation, and coastal wind speeds. Results: In both experiments, plant height was negatively correlated with latitude. Mimulus height correlated positively with annual precipitation and with mean wind speed, to a lesser degree, and negatively with annual mean temperature. We hypothesize that one or more of these factors drove clinal variation within the coastal ecotype. Conclusion: Overall, our study illustrates the complexity of how the distribution of environmental variation can both simultaneously drive the evolution of distinct ecotypes as well as continuous clines within those ecotypes. These results are discussed in the context of the classic criticisms of ecotypes being intermediates in the process of speciation.

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Section: The Environmental Factors Responsible For the Cline In Plant...mentioning

confidence: 99%

Section: S1mentioning

confidence: 99%

“…The intensity of wind speed increases with the distance above the ground (Grace 1977;Jaffe and Forbes 1993). While wind can be damaging by itself, it is particularly damaging to plants along ocean coastlines because it contains aerosolized oceanic salt spray (Boyce 1954;Barbour 1978;Cheplick and Demetri 1999;Griffiths et al 2006;Kouali et al 2017;Du and Hesp 2020). Unlike stress caused by soil salinity, salt spray primarily damages plants by landing directly on aboveground tissues and entering through stomata and small cracks in the cuticle (Grieve andPitman 1978;Du and Hesp 2020).…”

Section: The Environmental Factors Responsible For the Cline In Plant...mentioning

confidence: 99%

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Multiple clines within an ecotype of the yellow monkeyflower, Mimulus guttatus

Zambiasi,

Lowry

2023

Preprint

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“…In recent years, the effects of salt spray on plant growth have been exacerbated due to the increased frequency of heavy storms and the extension of coastal erosion [5]. Notably, salt spray adversely affects plant growth by disrupting water balance [16,17], reducing photosynthetic capabilities [18,19], and inhibiting nutrient uptake [3,20], occasionally resulting in plant mortality [5]. In particular, the decline in nutrient acquisition is reportedly the primary cause of the adverse effects of salt spray on plant growth [3].…”

Section: Introductionmentioning

confidence: 99%

Resistance of Mycorrhizal Cinnamomum camphora Seedlings to Salt Spray Depends on K+ and P Uptake

Xue,

Liu,

et al. 2023

JoF

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Salt spray is a major environmental issue in coastal areas. Cinnamomum camphora is an economically important tree species that grows in the coastal areas of southern China. Arbuscular mycorrhizal fungi (AMF) can alleviate the detrimental effects of abiotic stress on host plants. However, the mechanism by which AMF mitigates the adverse effects of salt spray on C. camphora remains unclear. A pot experiment was conducted in a greenhouse, where C. camphora seedlings were exposed to four AMF regimes (inoculation with sterilized fungi, with Glomus tortuosum, Funneliformis mosseae, either alone or in combination) and three salt spray regimes (applied with distilled water, 7, and 14 mg NaCl cm−2) in order to investigate the influence on root functional traits and plant growth. The results showed that higher salt spray significantly decreased the K+ uptake, K+/Na+ ratio, N/P ratio, total dry weight, and salinity tolerance of non-mycorrhizal plants by 37.9%, 71%, 27.4%, 12.7%, and 221.3%, respectively, when compared with control plants grown under non-salinity conditions. Mycorrhizal inoculation, particularly with a combination of G. tortuosum and F. mosseae, greatly improved the P uptake, total dry weight, and salinity tolerance of plants grown under higher salt spray conditions by 51.0%, 36.7%, and 130.9%, respectively, when compared with their counterparts. The results show that AMF can alleviate the detrimental effects of salt spray on C. camphora seedlings. Moreover, an enhanced uptake of K+ and P accounted for the resistance of the plants to salt spray. Therefore, pre-inoculation with a combination of G. tortuosum and F. mosseae to improve nutrient acquisition is a potential method of protecting C. camphora plants against salt spray stress in coastal areas.

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Ocean exposure and latitude drive multiple clines within the coastal perennial ecotype of the yellow monkeyflower, Mimulus guttatus

Zambiasi,

Lowry

2024

American J of Botany

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PremiseA key goal of evolutionary biologists is to understand how and why genetic variation is partitioned within species. In the yellow monkeyflower, Mimulus guttatus (syn. Erythranthe guttata), coastal perennial populations constitute a single genetically and morphologically differentiated ecotype compared to inland M. guttatus populations. While the coastal ecotype's distinctiveness has now been well documented, there is also environmental variation across the ecotype's range that could drive more continuous differentiation among its component populations.MethodsBased on previous observations of a potential cline within this ecotype, we quantified plant height, among other traits, across coastal perennial accessions from 74 populations in a greenhouse common garden experiment. To evaluate potential drivers of the relationship between trait variation and latitude, we regressed height against multiple climatic factors, including temperature, precipitation, and coastal wind speeds. We also accounted for exposure to the open ocean in all analyses.ResultsMultiple traits were correlated with latitude of origin, but none more than plant height. Height was negatively correlated with latitude, and plants directly exposed to the open ocean were shorter than those protected from coastal winds. Further analyses revealed that height was correlated with climatic factors (precipitation, temperature, and wind speeds) that were autocorrelated with latitude. We hypothesize that one or more of these climatic factors drove the evolution of latitudinal clinal variation within the coastal ecotype.ConclusionsOverall, our study illustrates the complexity of how the distribution of environmental variation can simultaneously drive the evolution of both distinct ecotypes and continuous clines within those ecotypes.

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Study of effects of seawater salt spray on growth, chlorophyll fluorescence and chlorophyll content in three coastal species of Morocco

Cited by 5 publications

References 16 publications

Multiple clines within an ecotype of the yellow monkeyflower, Mimulus guttatus

Multiple clines within an ecotype of the yellow monkeyflower, Mimulus guttatus

Resistance of Mycorrhizal Cinnamomum camphora Seedlings to Salt Spray Depends on K+ and P Uptake

Ocean exposure and latitude drive multiple clines within the coastal perennial ecotype of the yellow monkeyflower, Mimulus guttatus

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