Differentiation between true mangroves and mangrove associates based on leaf traits and salt contents

Wang, Liangmu; Mu, Meirong; Li, Xiaofei; Lin, Peng; Wang, Wenqing

doi:10.1093/jpe/rtq008

Cited by 97 publications

(63 citation statements)

References 29 publications

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“…Two different groups of mangroves are recognized based on their efficiency to permanently thrive in these environments. They include the true mangroves, considered halophytes that form pure stands, and the mangrove associates which are glycophytes with a certain degree of salt tolerance and that can extend into terrestrial communities, or grow at the margins of mangrove areas (Tomlinson 1986;Wang et al 2010). The mangroves provide multiple essential services including coastal protection, habitats for terrestrial and aquatic fauna, food and fuel for local communities (Tomlinson 1986;Nagelkerken et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Ophiostomatoid fungi associated with mangroves in South Africa, including Ophiostoma palustre sp. nov.

Osorio

Beer

Wingfield

et al. 2016

Antonie van Leeuwenhoek

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Mangrove trees are continuously under stress due to environmental and/or anthropogenic pressures, which expose them to attack by pathogens, compromising their survival.Ophiostomatoid fungi cause sap stain and diseases of a wide spectrum of tree species globally. These fungi infect trees through natural, insect, animal and/or human made wounds.During routine surveys of mangrove trees in South Africa, wounds on branches and stems of Avicennia marina were regularly monitored for the presence of ophiostomatoid fungi at ten study sites in the country. The stems of four mangrove species, Avicennia marina, Bruguiera gymnorrhiza, Rhizophora mucronata and Barringtonia racemosa were also wounded and evaluated for the appearance of these fungi. Ophiostomatoid fungi were obtained from the mangrove associate B. racemosa, but not from any of the true mangroves. Analyses of DNA sequence data for the Internal Transcribed Spacer (ITS), β-tubulin (BT), Calmodulin (CAL) and Translation Elongation Factor (TEF) gene regions revealed that the fungi isolated from the wounds on B. racemosa belong to three species in the Ophiostomataceae, including a new taxon described here as Ophiostoma palustre sp. nov. Results suggest that the mangrove associate B. racemosa is more prone to colonization by ophiostomatoid fungi than the true mangroves.

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Section: Introductionmentioning

confidence: 99%

Ophiostomatoid fungi associated with mangroves in South Africa, including Ophiostoma palustre sp. nov.

Osorio

Beer

Wingfield

et al. 2016

Antonie van Leeuwenhoek

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“…The Na/K molar relationships are larger than one, in the mangrove species and the grass S. densiflora, as expected for true halophytes (Medina, 1999). The fern A. danaeifolium, probably occupies less saline microsites, or restricts Na uptake effectively as reported for mangroves associates species (Wang et al, 2011).…”

Section: Plantsmentioning

confidence: 65%

Heterogeneity of elemental composition and natural abundance of stables isotopes of C and N in soils and leaves of mangroves at their southernmost West Atlantic range

et al. 2016

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Mangrove communities were selected in the state of Santa Catarina, Brazil, near their southernmost limit of distribution, to study mineral nutrient relation in soils and plants. Communities included three true mangrove species, Rhizophora mangle, Laguncularia racemosa and Avicennia germinans, and two associated species, the fern Acrostichum danaeifolium, and the grass Spartina densiflora. The sites included communities in the lower Río Tavares near Florianopolis city, Sonho beach near Palhoça city, and the Santo Antonio lagoon. These sites included a full range of mangroves under humid climate where winter temperatures, instead of salinity, may be the main factor regulating their productive capacity and species composition. Soil salinity was determined by the concentration of soluble Na, and soil C and N were linearly correlated indicating their association in organic matter. Tavares site showed higher specific conductivity, and concentrations of Na and Mg in the soil layer below 40 cm depth, indicating larger influence of marine water. Isotopic signature of C increased with soil depth suggesting that microorganisms decomposing organic matter are releasing 13 C depleted CO 2 . Nitrogen isotopic signature decreased with soil depth, indicating enrichment in 15 N possibly as a result of denitrification in the upper soil layers. Mineral elements in leaf tissues showed A. schaueriana with higher concentrations of N, P, Na, K, Cu, Zn, and Na/Ca ratio. Spartina densiflora was characterized by the lowest N and K concentrations, and the highest concentrations of Al and Fe. Rhizophora mangle and L. racemosa had the highest Ca concentrations. Carbon isotopic signatures identified S. densiflora as a C4 plant, and A. schaueriana as the mangrove species occupying comparatively more water stressed microsites than the rest. Leaf nitrogen isotopic signatures were positive, in correspondence with the soil values. The results support the hypothesis that sites sampled were comparatively fertile, because sediment transport through fresh water run-off is predominant in humid coasts, and therefore plants were not limited by nutrient supply, nor particularly stressed by soil salinity.Keywords: mangroves, soils, leaves, nutrients, stable isotopes, southwestern Atlantic latitudinal limit.Heterogeneidade da composição elementar e abundância natural de isótopos estáveis de C e N no solo e folhas dos manguezais no extremo sul da sua distribuição na costa Atlântica ocidental

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“…These authors and others [44,45,46] add that no doubt hangs over membership of the mangrove species that [47] calls as major, but the exclusion of several species of this vegetation still lacks conclusive scientific evidence and confirms the lack of consensus expressed by some authors on their classification [44,46,48,49,50].…”

Section: Table1 Distribution Of Species Inmentioning

confidence: 88%

Diversity Shifts in the Mangrove Vegetation of the Rio del ReyEstuary (Cameroon)

2017

International Journal of Research Studies in Biosciences

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Differentiation between true mangroves and mangrove associates based on leaf traits and salt contents

Cited by 97 publications

References 29 publications

Ophiostomatoid fungi associated with mangroves in South Africa, including Ophiostoma palustre sp. nov.

Ophiostomatoid fungi associated with mangroves in South Africa, including Ophiostoma palustre sp. nov.

Heterogeneity of elemental composition and natural abundance of stables isotopes of C and N in soils and leaves of mangroves at their southernmost West Atlantic range

Diversity Shifts in the Mangrove Vegetation of the Rio del ReyEstuary (Cameroon)

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