Alchornea triplinervia (Spreng.) Müll. Arg. (Euphorbiaceae) is a tree which occurs in a broad range of habitats in Brazil. In the State of Rio de Janeiro, it occurs. CONTEXT: Alchornea triplinervia (Spreng.) Müll. Arg. (Euphorbiaceae) is a tree widespread in many Brazilian states. This plant naturally occurs. Find technical and marketing information for lesser-used tropical timber species, LUS. Learn more on our Tapia (Alchornea triplinervia) page.

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These populations developed different response levels to the environmental factors studied, namely light and soil water regime.

Trichoderma viride 23Fusarium oxysporum 23 and Penicillium hirsutum Microscopical slides prepared with cotton blue and sealed with nail polish were also kept for observation. Fungi were isolated by the leaf disks washing technique followed by plating on culture media and also by using baiting techniques using substrates with chitin, keratin and cellulosewhat resulted on fungal registers corresponding to 81 taxa.

Tangential diameter of vessel lumina to micras medium. From the first month on, Aspergillus niger, Cladosporium sphaerospermumCylindrocladium scopariumColletotrichum orbiculare, Fusarium solaniPaecilomyces javanicus, Pestalotia clavataand Rhizopus arrhizus were isolated. The first papers about fungal succession on submerged leaves in Brazil were concerned with the decomposition of Ficus microcarpa L.

Alchornea triplinervia

Drying Defects Ease of Drying: The presence of typical terrestrial fungi belonging to Deuteromycotina, seems to be connected with the initial stages of the decomposition of the leaves, whereas the presence of species of Zygomycotina may be expected at the end of the process. Fibers with distinctly bordered pits.

Once again, the dominance of terrestrial fungi on the submerged substrate may justify these results. How to cite this article. Cylindrocladium scoparium Morgan, Triscelophorus monosporus Ingold and Polychytrium aggregatum Ajello. So, the taxa registered in July of and July of were isolated from the leaves before the submergence. Leaves of Alchornea triplinervia Spreng. On the ecology of heterotrophic micro-organisms in freshwater. In July of and recently fallen leaves of A. Rays more than 10 per mm abundant.

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Aquatic Hyphomycetes on oak leaves: According to Garrett the success of the fungi to reach and colonize organic substrates may be mainly determined by their competitive saprophytic ability, expressed by fast mycelial growth, spores production, presence of an efficient enzymatic systems and tolerance to antibiotics. Colonization of leaves by water-borne hyphomycetes in a tropical stream. During the second period, the highest number was registered in April of 40 registers and the lowest in July of 10 registersbefore the leaves were submerged in the stream.

Tapia (Alchornea triplinervia) | ITTO

So, the occurrence of several fungal groups, each with specific competitive saprophytic abilities, during the decomposition of leaves may result in a process known as fungal succession Frankland Curvularia brachyspora, Fusarium clamydosporum, F. Sawing Cutting resistance is generally low.

Light accounted for the variations found in palisade and spongy parenchyma while the combination of light and soil water determined the variations found regarding the outer epidermal cell wall of the abaxial surface, the percentage of sclerenchymatous area in relation to the total midrib area and the compaction of the spongy parenchyma.

Karlingia rosea and Nowakowskiella elegans have been considered cellulolytic fungi, while Polychytrium aggregatum has demonstrated a high affinity with keratin substrates Willoughby Abstract Alchornea triplinervia Spreng.

BOLD Systems: Taxonomy Browser – Alchornea triplinervia {species}

In the laboratory, the tgiplinervia were air dried oCdivided in samples of approximately 20 g and placed into nylon net 1 mm diam. Fungal succession on leaves of Alchornea triplinervia Spreng. The distance among the collection points was around 5 m, being three and two points respectively chosen for each site of the stream.

Alchornea triplinervia is found alcgornea rain forests from the sea level up until 1, m of altitude, it is also found in the Atlantic rain forest. Atlantic forestintraspecific variationtropical tree. Although the aquatic Hyphomycetes, as well as some zoosporic fungi may tripkinervia considered initial decomposers, with high capacity to degrade cellulose and lignin compounds Willoughbytheir presence in the leaves of A.


The number of fungal species and the total number of registers increased in function of the time of decomposition of the leaves. Checking, cupping and twisting are reported. Chaetomium globosumMucor circinelloides f. It seems possible that after some time the conditions of the leaves allow the establishment of a more diversified mycota.

Gray and Fusarium oxysporum Schlecht emend. On certain species of Mucor with a key to all accepted species. Aspergillus alutaceusCladosporium herbarum, Gelasinospora cerealis and Rhizophydium elyensis were isolated rriplinervia the seventh month of decomposition.

Drying is fairly slow. The usually diversified and competitive mycota present in the leaf tissues, before submergence, may include “autochthonous” fungi, that resist to drastic environmental changes and triiplinervia on further decomposition processes, until some of the native aquatic fungi are able to colonize and dominate the substrate Park The colonies of Deuteromycotina, Zygomycotina and Ascomycotina that grew around the leaf disks were isolated after seven days of incubation o Cwhile the zoosporic fungi were observed after five days of incubation.

Receive exclusive offers and updates from Oxford Academic. Tukey tests were carried out for multiple comparisons, while one-way factor variance analysis was used to test for differences among ecological populations. Casehardening is also reported.

Joists 12 – Tropical timbers of the world. Vessels per mm2 6 to 10 medium. Close mobile search navigation Article navigation. Forty litter bags were submerged at each of five collection points along the stream. A principal component analysis was used to order the alchhornea as well as to find the higher variance component.

In the leaves of A.