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家庭社会经济地位对初中生学习投入的影响——心理弹性和学业自我概念的链式中介作用 被引量:9
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作者 纪春梅 冯帮 赵慧 《教育与经济》 CSSCI 北大核心 2023年第4期64-71,共8页
为探讨家庭社会经济地位对初中生学习投入的影响及其作用机制,本研究对西部某省3所乡镇初中421名学生进行问卷调查。结果发现,家庭社经地位、心理弹性、学业自我概念和学习投入之间两两显著正相关,家庭社经地位对初中生学习投入的直接... 为探讨家庭社会经济地位对初中生学习投入的影响及其作用机制,本研究对西部某省3所乡镇初中421名学生进行问卷调查。结果发现,家庭社经地位、心理弹性、学业自我概念和学习投入之间两两显著正相关,家庭社经地位对初中生学习投入的直接影响显著;心理弹性和学业自我概念在家庭社经地位与初中生学习投入之间有三条中介路径:一是心理弹性的单独中介作用;二是学业自我概念的单独中介作用;三是心理弹性和学业自我概念的链式中介作用。为减缓低家庭社经地位对个体发展的不利影响,建议通过全方位深化家校合作,增强家庭对初中生的影响;多角度积累积极资源,提升初中生心理弹性;多层次干预,促进初中生学业自我概念的发展。 展开更多
关键词 家庭社经地位 心理弹性 学业自我概念 学习投入
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Studies on diversity of higher fungi in Yunnan, southwestern China:A review 被引量:5
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作者 bang feng Zhuliang Yang 《Plant Diversity》 SCIE CAS CSCD 2018年第4期165-171,共7页
Yunnan is exceedingly rich in higher fungi(Ascomycota and Basidiomycota). Given that the number of fungi(including lichens) occurring in a given area is, as Hawksworth suggested, roughly six times that of local vascul... Yunnan is exceedingly rich in higher fungi(Ascomycota and Basidiomycota). Given that the number of fungi(including lichens) occurring in a given area is, as Hawksworth suggested, roughly six times that of local vascular plants, a total of approximately 104,000 fungal species would be expected in Yunnan.However, to date only about 6000 fungal species, including roughly 3000 species of higher fungi, have been reported from the province. Although studies on Yunnan's fungi started in the late nineteenth century, significant progress has been made only in the last forty-five years. Over the first twenty-five years of this period, studies on fungal diversity in this area have largely been about taxonomy based on morphological characters and partially on geographical distribution. Over the past twenty years, the combination of both morphological and molecular phylogenetic approaches has become the preferred method to help understand the diversity and evolution of higher fungi. This review focuses on our current knowledge of how geological, geographical, and ecological factors may have contributed to the diversity patterns of higher fungi in Yunnan. Based on this knowledge, three aspects for future studies are suggested. 展开更多
关键词 ASCOMYCOTA BASIDIOMYCOTA BIOGEOGRAPHY Evolution Fungal diversity YUNNAN
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Molecular phylogenetic analyses redefine seven major clades and reveal 22 new generic clades in the fungal family Boletaceae 被引量:22
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作者 Gang Wu bang feng +5 位作者 Jianping Xu Xue-Tai Zhu Yan-Chun Li Nian-Kai Zeng MdIqbal Hosen Zhu L.Yang 《Fungal Diversity》 SCIE 2014年第6期93-115,共23页
Mushrooms in the basidiomycete family Boletaceae are ecologically and economically very important.However,due to the morphological complexity and the limited phylogenetic information on the various species and genera ... Mushrooms in the basidiomycete family Boletaceae are ecologically and economically very important.However,due to the morphological complexity and the limited phylogenetic information on the various species and genera of this fungal family,our understanding of its systematics and evolution remains rudimentary.In this study,DNA sequences of four genes(nrLSU,tef1-α,rpb1,and rpb2)were newly obtained from ca.200 representative specimens of Boletaceae.Our phylogenetic analyses revealed seven major clades at the subfamily level,namely Austroboletoideae,Boletoideae,Chalciporoideae,Leccinoideae,Xerocomoideae,Zangioideae,and the Pulveroboletus Group.In addition,59 genus-level clades were identified,of which 22 were uncovered for the first time.These 22 clades were mainly placed in Boletoideae and the Pulveroboletus Group.The results further indicated that the characters frequently used in the morphology-based taxonomy of Boletaceae,such as basidiospore ornamentation,the form of the basidioma,and the stuffed pores each had multiple origins within the family,suggesting that the use of such features for high-level classification of Boletaceae should be de-emphasized and combined with other characters. 展开更多
关键词 BOLETALES CHEMOTAXONOMY Convergent evolution Morphological characters Multi-gene analyses New subfamilies
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Four new genera of the fungal family Boletaceae 被引量:7
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作者 Gang Wu Kuan Zhao +4 位作者 Yan-Chun Li Nian-Kai Zeng bang feng Roy E.Halling Zhu L.Yang 《Fungal Diversity》 SCIE 2016年第6期1-24,共24页
Based on our previous molecular phylogenetic analyses,four new genera are described,namely Baorangia,Lanmaoa,Parvixerocomus,and Rugiboletus,and one known genus,Neoboletus,is re-delimitated.Four new species and nine ne... Based on our previous molecular phylogenetic analyses,four new genera are described,namely Baorangia,Lanmaoa,Parvixerocomus,and Rugiboletus,and one known genus,Neoboletus,is re-delimitated.Four new species and nine new combinations are proposed.Morphological characters of each genus and related eleven species are described and illustrated.Most of species in the genera described from southwestern China are wild edible mushrooms and can be found in free markets. 展开更多
关键词 BOLETACEAE Boletes New lineages TAXONOMY
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Porcini mushrooms(Boletus sect.Boletus)from China 被引量:4
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作者 Yang-Yang Cui bang feng +2 位作者 Gang Wu Jianping Xu Zhu L.Yang 《Fungal Diversity》 SCIE 2016年第6期189-212,共24页
Porcini mushrooms(Boletus sect.Boletus)have both economic and ecological importance.Recent molecular phylogenetic study has uncovered rich species diversity of this group of fungi from China.In this study,the Chinese ... Porcini mushrooms(Boletus sect.Boletus)have both economic and ecological importance.Recent molecular phylogenetic study has uncovered rich species diversity of this group of fungi from China.In this study,the Chinese porcini were characterized by both morphological andmolecular phylogenetic evidence.15 species were recognized,including nine new species,namely B.botryoides,B.fagacicola,B.griseiceps,B.monilifer,B.sinoedulis,B.subviolaceofuscus,B.tylopilopsis,B.umbrinipileus and B.viscidiceps.Three previously described species,viz.B.bainiugan,B.meiweiniuganjun and B.shiyong,were revised,and B.meiweiniuganjun is treated as a synonym of B.bainiugan.A key to the Chinese porcini mushrooms was provided. 展开更多
关键词 Boletes TAXONOMY MORPHOLOGY PHYLOGENY Wild edible mushrooms
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Borofutus, a new genus of Boletaceae from tropical Asia: phylogeny, morphology and taxonomy
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作者 Md.Iqbal Hosen bang feng +3 位作者 Gang Wu Xue Tai Zhu Yan Chun Li Zhu L.Yang 《Fungal Diversity》 SCIE 2013年第1期215-226,共12页
A new monotypic genus in the Boletaceae,Borofutus,typified by B.dhakanus,is described using morphological and molecular evidence.This is a putatively ectomycorrhizal fungus associated with Shorea robusta.Borofutus is ... A new monotypic genus in the Boletaceae,Borofutus,typified by B.dhakanus,is described using morphological and molecular evidence.This is a putatively ectomycorrhizal fungus associated with Shorea robusta.Borofutus is characterized by the combination of the following characters:basidiomata small to medium-sized;pileus grayish brown to cocoa brown;hymenophore subdecurrent,cream then golden brown,with broad,nearly hexagonal pores;basidiospores purple to purplish red in H2O,ornamented with irregular to regular shallow pits;cystidia lageniform,thick-walled.Borofutus is sister to Spongiforma in molecular phylogenetic analyses using DNA nucleotide sequences of single or multiple loci.A description,line drawings,phylogenetic placement and comparison with allied taxa are presented herein. 展开更多
关键词 Boletes DIPTEROCARPACEAE Multiple gene analysis New fungal taxon
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