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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A mycological study of decay in the leaves of deciduous trees on the bed of a river. The combination of plating methods and baiting techniques confirmed to be useful to obtain a diversified mycota from leaves submerged in a stream of an Atlantic Rainforest. Fibers with distinctly bordered pits. Colonization of leaves by water-borne hyphomycetes in a tropical stream. Fungi were isolated by the leaf disks washing technique followed by plating on culture media and also by using baiting techniques using substrates alchornnea chitin, keratin and cellulosewhat resulted on fungal registers corresponding to 81 taxa.
Non-crystals in axial parenchyma cells. The role of phylloplane fungi in the early colonization of leaves. So, the taxa registered in July of and July of were isolated from the leaves before the submergence.
Beams 11 – Prospect: The triplinerbia of this paper is to contribute for the knowledge about the diversity of fungi in the succession process during the decomposition of A. Close mobile search navigation Article navigation. Natural Durability This timber is highly susceptible to fungal and insect attacks.
A total of 81 taxa distributed in registers were obtained table 1representing respectively: Euphorbiaceae under distinct light and soil water regimes G. Resistance To Impregnation B.
It seems possible that after some time the conditions of the leaves allow the establishment of a more diversified mycota. Vessel-ray pits larger than the intervessel pits. The most common species found during this study of the fungal succession were Trichoderma viride Pers. A principal component analysis was used to order alfhornea populations as well as to find the higher variance component.
Rays more than 10 per mm abundant. Pollination of an endangered Caladenia species Orchidaceae by nectar-foraging behaviour of a widespread species trpilinervia colletid bee.
A brief summary about the sampling and isolation methods alchorna presented: The ecology of lower freshwater Phycomycetes in the tube experiment at Blehman Tarn.
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.
Once again, the dominance of terrestrial fungi on the submerged substrate may justify these results. Color The sapwood is not differentiated. From the eighth and ninth months on, Catenophlyctis variabilisFusarium lateritium, Mucor hiemalis f. Fungal succession on leaves of Alchornea triplinervia Spreng.
Alchoornea the first period of the experiment, the highest number of fungal specimens was registered in January of 38 registers and the lowest in August of 13 registers.
Key words – Fungal succession, leaf decomposition, Atlantic Rainforest, aquatic system. Zoosporic fungi and aquatic Hyphomycetes showed a tendency to occur in an intermediate phases of the succession.
Fungi were isolated by the leaf disk washing technique Pugh et al. These populations developed different response levels to the environmental factors studied, namely light and soil water regime. Sign In or Create an Account.
Vessels solitary and in short radial multiples. The fungi were isolated from the dry leaves in July of and in July of to provide knowledge about the composition of the mycota before submergence in the stream, as a startpoint to follow further changes of the successional fungal communities.
Trichoderma aclhornea 23 registersFusarium oxysporum 23Triplinerviz hirsutum 21Alternaria alternata 10Mucor hiemalis 16Epicoccum purpurascens 10Aspergillus clavatus 13 and Fusarium graminearum 7 were isolated from the recently fallen leaves and were present even after the submergence of the substrate.
In The fungal community: On table 1 the fungi isolated from the submerged leaves were disposed according to their occurrences, following the fungal succession, since before the submergence of the leaves in the stream. Therefore, the results presented here are showing the adequacy of considering the autochthonous fungi, present in the recent fallen leaves as a startpoint mycota for the fungal succession in the aquatic environment.
Although triplineevia aquatic Hyphomycetes, as well as some zoosporic fungi may be considered initial decomposers, with high capacity to degrade cellulose and lignin compounds Willoughbytheir presence in the leaves of A.
The failure of many species to grow on culture media and the necessity to use baiting techniques to detect their presence on the substrates, make the study of the activity of zoosporic fungi very difficult, justifying their absence in the studies mentioned above. Aspergillus alutaceusCladosporium herbarum, Gelasinospora cerealis and Rhizophydium elyensis were isolated since the seventh month of decomposition.
Machining This species is easy to machine. Botanical Description It is a dominant tree, it attains triplinrrvia from 15 to 30 m. Trichoderma virideFusarium oxysporumPenicillium hirsutumAlternaria alternataMucor hiemalisEpicoccum purpurescens and Aspergillus clavatus were components of the mycota isolated from the leaves prior the submergence until intermediate stages of the decomposition table 1.
Chaetomium globosumMucor circinelloides f. Curvularia brachyspora, Fusarium clamydosporum, F. Breakdown and colonization of Nothofagus leaves in a New Alcgornea stream. The occurrence of R.