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Schima wallichii

About: Schima wallichii is a(n) research topic. Over the lifetime, 160 publication(s) have been published within this topic receiving 1382 citation(s).

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Journal ArticleDOI
Xiaoniu Xu1, Xiaoniu Xu2, Eiji Hirata3Institutions (3)
01 Jun 2005-Plant and Soil
Abstract: Litter decomposition, governing nutrient and C cycling, is strongly influenced by the chemical litter quality. In order to determine the interspecific variation in leaf decomposition rates and to understand the chemical basis for such variation, decomposition dynamics of seven common canopy species was investigated over 2 year using the litterbag technique in a subtropical evergreen broad-leaved forest on Okinawa Island, Japan. The species studied are representatives of the vegetation in the study area and differed significantly in their chemical litter quality. Dry mass loss at the end of study varied in the order: Distylium racemosum< Quercus miyagii< Rapanea neriifolia< Symplocos confusa< Castanopsis sieboldii< Schima wallichii< Daphniphyllum glaucescens. All species showed a pattern characterized by a rapid initial decomposition followed by lower rates except for D. glaucescenswhich decomposition rate appeared to be rather constant. In the late phase, decomposition rates were correlated positively to initial N and ash contents and negatively to lignin content, lignin:N, C:N, and C:P ratios. The effects of N and lignin content or lignin:N ratio were stronger than other quality parameters. There was a wide range in patterns of N and P concentrations, from a net accumulation to a rapid loss in decomposition. The correlation between N and P release suggests that N and P dynamics may have influenced each other during litter decomposition. Analysis of initial quality for species showed that the C:P ratios were extremely high (range 1639–3811) but the N:P ratios were from 28 to 56, indicating a likely P-limitation for this forest. Our results suggest that P is an important control of litter decomposition and N and P dynamics.

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90 citations


Journal ArticleDOI
Ajeng Diantini, Anas Subarnas1, Keri Lestari1, Eli Halimah1  +9 moreInstitutions (2)
01 May 2012-Oncology Letters
TL;DR: This study isolated kaempferol-3-O-rhamnoside as an active compound from the leaves of Schima wallichii Korth, a plant commonly consumed by non-human primates, and its anti-cancer activities, including its ability to induce apoptotic mechanisms, were investigated in MCF-7 breast cancer cells.

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Abstract: Plants consumed by non-human primates represent potential drug sources for human disease management. In this study, we isolated kaempferol-3-O-rhamnoside as an active compound from the leaves of Schima wallichii Korth., a plant commonly consumed by non-human primates. Its anti-cancer activities, including its ability to induce apoptotic mechanisms, were investigated in MCF-7 breast cancer cells. Results showed that in MCF-7 cells, kaempferol-3-O-rhamnoside inhibits cell proliferation in a dose-dependent manner and promotes apoptosis via the activation of the caspase signaling cascade, which includes caspase-9, caspase-3 and PARP. Our results provide a basis for further exploration of kaempferol-3-O-rhamnoside as an active compound for potential anti-cancer therapeutics.

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72 citations


Journal ArticleDOI
Laode Alhamd1, Syoko Arakaki1, Akio Hagihara1Institutions (1)
Abstract: The leaf litter decomposition of four indigenous tree species, such as Castanopsis sieboldii, Schima wallichii, Elaeocarpus japonicus, and Daphniphyllum teijsmannii, was monthly monitored using the litterbag technique over a 12-month period in a subtropical evergreen broad-leaved forest of Okinawa Island, Japan. The decomposition rate constant (k) was 1.19 ± 0.19 for D. teijsmannii, 1.09 ± 0.07 for C. sieboldii, 0.94 ± 0.05 for E. japonicus, and 0.66 ± 0.05 (S.E.) yr−1 for S. wallichii. The decomposition rate constant was significantly lower in S. wallichii than the other three species (P

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61 citations


Journal ArticleDOI
Maki Fukushima1, Mamoru Kanzaki1, Masatoshi Hara2, Tatsuhiro Ohkubo3  +2 moreInstitutions (4)
Abstract: As controls over swidden cultivation have tightened since the 1980s, the number of abandoned fallow fields has increased in mountainous areas of Northern Thailand. The objective of this study was to investigate the recovery of species composition, diversity (Shannon's H'), and aboveground biomass in secondary forests that were abandoned after swidden cultivation for more than 20 years. A census of trees in secondary forest abandoned after upland rice cultivation or poppy cultivation and in uncultivated forest stands was conducted in a Karen village in Doi Inthanon National Park. Castanopsis acuminatissima and other Fagaceae species were the dominant species in uncultivated forest stands, while Schima wallichii was the most dominant species in secondary forest stands. The dominance of S. wallichii, Machilus bombycia, and Eurya acuminate var. wallichiana was higher in stands that had experienced poppy cultivation, resulting in the lower species diversity. Aboveground biomass in stands abandoned after upland cultivation with no history of poppy cultivation was higher than in stands that had a history of poppy cultivation. This is probably because tree stumps, which act as reservoirs for rapid recovery, were left after abandonment of upland rice cultivation. Cluster analysis revealed three different stand groups, based on presence/absence data of each species. Stands used only for upland rice cultivation were found in the stand group characterized by Fagaceae species, while stands abandoned after poppy cultivation and stands abandoned after upland rice cultivation that were located in the area where poppy had been cultivated in the past tended to be included in the stand group characterized by E. acuminate var. wallichiana. The species presence/absence composition results in stands with a history of poppy cultivation show that these areas take more time to reach climax species composition.

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61 citations


Journal ArticleDOI
B. P. Bhatt1, J.M.S Tomar1Institutions (1)
Abstract: Quantitative analysis of 26 indigenous mountain fuelwood species of North-Eastern Himalayan region was carried out to identify trees with potential for fuelwood production A fuelwood value index (FVI) was defined as calorific value x density/ash content Betula nitida, Machilus bombycina, Itea macrophylla, Cryptomeria japonica, Gmelina arborea, Simingtonia populnea, Macaranga denticulata and Schima wallichii were shown to have promising firewood production

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56 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202114
20208
20198
20187
20176
20168

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Topic's top 5 most impactful authors

Yagya Prasad Adhikari

5 papers, 65 citations

Kitichate Sridith

4 papers, 39 citations

Aki Sinkkonen

4 papers, 39 citations

Lal B. Thapa

4 papers, 39 citations

Eiji Hirata

4 papers, 193 citations