Acidiphily in pteridophytes: Assessment of the role of root cation‐exchange properties

Koedam, Nico; Büscher, P.; Speybroeck, D. Van

doi:10.1080/01904169209364499

Cited by 9 publications

(10 citation statements)

References 14 publications

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“…Our results concur with other studies indicating that P. aquilinum prospers particularly in open sites with acidic and low fertility soils, where this fern has a competitive advantage by sequestering nitrogen and limiting growth of competing vegetation (Page , Koedam et al . , Thomson , De Silva & Matos , Marrs & Watt , Griffiths & Filan ).…”

Section: Discussionmentioning

confidence: 99%

Land‐use Change Dynamics, Soil Type and Species Forming Mono‐dominant Patches: the Case of Pteridium aquilinum in a Neotropical Rain Forest Region

et al. 2014

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Deforestation and agricultural land degradation in tropical regions can create conditions for growth of perennial plant species forming mono-dominated patches (MDP). Such species might limit forest regeneration, and their proliferation forces the abandonment of fields and subsequent deforestation to establish new fields. Therefore, identifying factors fostering MDP species is critical for biodiversity conservation in human-modified landscapes. Here, we propose a conceptual framework to identify such factors and apply it to the case of Pteridium aquilinum (bracken fern), a light-demanding species, tolerant of low soil fertility and fire. We hypothesize that bracken proliferation is promoted by land-use changes that increase light availability, especially in sites with low soil fertility and land uses involving fire. We assessed this idea using agricultural fields in southeastern Mexico with different land-use change histories and quantifying prevalence and cover of bracken. Five different land-use change histories resulted from transitions among forest, crop, pasture, and fallow field stages. Of the 133 fields sampled, 71 percent had P. aquilinum; regression tree analysis indicated that 65 percent of inter-field variation in prevalence and 90 percent in cover was explained by land-use change history and soil type. Maximum prevalence, cover, and rates of increase in bracken were found on fields with low fertility sandy/clay soils, which had been used for crops and pasture, were frequently burned, and had high levels of light. Fields on fertile alluvial soil never used for pasture were bracken-free. Agriculture promoting high light environments on less fertile soils is a major cause of bracken proliferation and likely that of other MDP species.Abstract in Spanish is available in the online version of this article.

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Section: Discussionmentioning

confidence: 99%

Land‐use Change Dynamics, Soil Type and Species Forming Mono‐dominant Patches: the Case of Pteridium aquilinum in a Neotropical Rain Forest Region

et al. 2014

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“…Under natural conditions, pH also appears to have a selective effect in the establishment of many ornamental species (Symonds et al 2001). Some pteridophytes have been reported to prefer alkaline soils (Handreck 1992), whereas others are acidiphilous (Koedam et al 1992) or yet generalists (Ranal 1995). Under in vitro conditions, the medium pH may have significant effects on growth and differentiation of cells, although there are many reports showing that cells in culture can significantly alter the pH of the external medium through differential uptake of nutrients and/or through H + fluxes (Minocha 1987).…”

Section: Resultsmentioning

confidence: 99%

“…Higuchi et al (1987) described the effect of growth regulators and sucrose on histological differentiation and fresh matter weight of N. cordifolia Prsel. The association of these variables with pH is important because it could influence the multiplication efficiency, establishment and quality of the propagated sporophytes (Handreck 1992;Koedam et al 1992;Pevalek-Kozlina 1996).…”

Section: Introductionmentioning

confidence: 99%

Interaction between sucrose and pH during in vitro culture of Nephrolepis biserrata (Sw.) Schott (Pteridophyta)

Ambrósio

Melo

2004

Acta Bot. Bras.

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RESUMO -(Interação da sacarose e níveis de pH durante o cultivo in vitro de Nephrolepis biserrata (Sw.) Schott (Pteridophyta)). O presente trabalho relata o efeito de diferentes valores de pH e concentrações de sacarose na propagação in vitro de Nephrolepis biserrata. Frondes obtidas assepticamente a partir do cultivo de estolões foram inoculadas em meio semi-sólido MS, suplementado com 0, 15, 30, 45 e 60g.L -1 de sacarose e pH ajustado para 3, 5, 7 e 9, em arranjo fatorial. Foram avaliados: número e comprimento das frondes, número de pinas, comprimento e diâmetro da raque e biomassa fresca e seca da parte aérea. Em geral, houve inibição da regeneração de brotos e folhas em todos os tratamentos de pH na ausência de sacarose. Por outro lado, a presença de sacarose no meio induziu 51,25 e 38,25 brotos por explante no pH 5 e 7, respectivamente. Concentrações entre 15 e 45g.L -1 de sacarose aumentaram o comprimento e o diâmetro das folhas e o pH 9 não afetou o peso foliar seco, sendo inadequado para o desenvolvimento de novas frondes. Os esporófitos jovens foram submetidos, com sucesso, ao processo de aclimatação. sucrose and pH adjusted to 3, 5, 7 and 9, in a factorial design. Frond number and length, pinnae number, raquis length and diameter, fresh and dry matter weight were measured. Inhibition of shoot and leaf regeneration was observed in all the pH treatments in the absence of sucrose. On the other hand, when sucrose was added to the medium, the shoot number increased, reaching the maximum average values of 51.25 and 38.25 shoot per explant at pH 5 and 7, respectively. Sucrose concentrations from 15 to 45g.L -1 increased leaf length and diameter and the pH 9 did not affect the dry matter weight, and was still not adequate for development of new fronds. Young sporophytes were successfully acclimated. Palavras

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“…In the field Pteridium is found on soils with a pH ranging from 2.8 to 8.6 (Willis et al . 1959a,b; Rackham 1980; Koedam et al . 1992), although most bracken is found in moderately acidic soils.…”

Section: Habitatmentioning

confidence: 99%

Biological Flora of the British Isles: Pteridium aquilinum (L.) Kuhn

2006

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Summary1 This account reviews information on all aspects of the biology of bracken Pteridium (mainly aquilinum ssp. aquilinum) that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, reproductive characters, herbivores and disease, history, and conservation. 2 Pteridium is a complex genus comprising a number of species, subspecies and varieties. The treatment here is based on a recent revision that incorporates both morphological and molecular data, and is related to its geographical distribution. 3 Pteridium is thought to be a woodland genus, but it can grow in the open. It is cosmopolitan and occurs on all continents except Antarctica. It responds to human disturbance and is often found in open spaces after forest clearance and cultivation. In some situations it can be a troublesome weed, causing problems for land managers. Moreover, its abundance and distribution in Britain are predicted to increase as a result of global climate change. 4 Pteridium aquilinum ssp. aquilinum, the most common taxon in the British Isles, occurs in many plant communities, and it is apparently limited by frost and waterlogging. Its abundance has probably increased in the relatively recent past as a result of changing land management, and this increase impinges on plant communities with a high conservation interest. The changed land management reflects changing use of agricultural land and also a reduction in the use of Pteridium as a resource. Accordingly, in many places Pteridium is viewed as a weed and management is needed to control it and restore more desirable vegetation. These management techniques are summarized.

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Acidiphily in pteridophytes: Assessment of the role of root cation‐exchange properties

Cited by 9 publications

References 14 publications

Land‐use Change Dynamics, Soil Type and Species Forming Mono‐dominant Patches: the Case of Pteridium aquilinum in a Neotropical Rain Forest Region

Land‐use Change Dynamics, Soil Type and Species Forming Mono‐dominant Patches: the Case of Pteridium aquilinum in a Neotropical Rain Forest Region

Interaction between sucrose and pH during in vitro culture of Nephrolepis biserrata (Sw.) Schott (Pteridophyta)

Biological Flora of the British Isles: Pteridium aquilinum (L.) Kuhn

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