检索结果-南通市图书馆

Linking tree growth rate, damage repair, and susceptibility to a genus-specific pest infestation

journal of Forestry Research 2019年第5期30卷 1935-1941页

作者： Kayla N.Boyes Kathryn G.Hietala-Henschell Alexander P.Barton andrew j.storer jordan M.Marshall Department of Biology Purdue University Fort WayneFort WayneIN 46805USA School of Forest Resources and Environmental Science Michigan Technological UniversityHoughtonMI 49931USA

Pest preference and subsequent susceptibility of a host individual is likely related to previous growth patterns in that *** ash borer(Agrilus planipennis Fairmaire)is a pestiferous beetle introduced to North America from *** all species of ash are susceptible to attack,some individual trees appear to survive *** selected ash trees in southeastern Michigan,collected cores and categorized trees as high tolerance to emerald ash borer attack(high overall health,low crown dieback),low tolerance(low overall health,high crown dieback)and intermediate tolerance(in-between the other categories).We artificially wounded trees and measured wound closure after 3 *** width indices were not correlated between high and low tolerance *** slopes comparing growth and years were significantly different between the three tolerance categories,with high tolerance trees having the steepest *** closure was greatest in high tolerance *** tolerance trees demonstrating more rapid(steeper regression slope),consistent(lower variance),and effective(greater wound closure)*** vigorously growing trees likely had more capacity to repair damage caused by emerald ash borer,leading to healthier trees in our *** previous host growth patterns to health may have implications related to identifying individual trees potentially tolerant to attack.

关键词： Agrilus Ash Dendrochronology Emerald ash borer Fraxinus Invasive species

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influences of Biochar and Biochar-Mineral Complex on Mycorrhizal Colonisation and Nutrition of Wheat and Sorghum

引用

Pedosphere 2015年第5期25卷 686-695页

作者： Paul BLACKWELL Stephen jOSEPH Paul MUNROE Hossain M.ANAWAR Paul storer Robert j.GILKES Zakaria M.SOLAIMAN Department of Agriculture and Food Western Australia Geraldton Regional Office School of Materials Science and Engineering University of New South WalesSydney Discipline of Chemistry University of Newcastle University of Wollongong School of Earth and Environment and UWA Institute of Agriculture The University of Western Australia Australian Mineral Fertilisers Pty Ltd. Soil Biology and Molecular Ecology Group School of Earth and Environment and UWA Institute of AgricultureThe University of Western Australia

The high price of synthetic fertilisers and the price barrier for biochar as a soil amendment have encouraged the exploration of using biochar in fertiliser replacement formulations. Biochars coupled with fertilisers can be applied at lower application rates to achieve benefits in plant growth and nutrition, as well as soil biological fertility. It is necessary to evaluate the use of biochar as a fertiliser substitute. Therefore, this study investigated the comparative influences of biochars, including Acacia saligna(AS), Simcoa jarrah(Sj) and Wundowie jarrah(Wj), mineral fertiliser with microbes(MF + M), biochar-mineral complex(BMC) and their combination on mycorrhizal colonisation, growth and nutrition of wheat in a glasshouse experiment and sorghum in field conditions. BMC + MF +M treatment produced higher mycorrhizal colonisation than MF + M alone, indicating that BMC had a significant role in increasing mycorrhizal colonisation. Sj(treated with acetic acid) and MF + M treatments, as well as AS + MF + M application, showed similar effects on mycorrhizal colonisation, but lower colonisation than the BMC + MF + M treatment. Overall, the BMC + MF + M treatment supported the maximum shoot, root and total plant dry weight followed by AS + MF + M and Wj + MF + M. The MF+ M treatment had the maximum shoot N and K concentrations, while BMC + MF + M application had the maximum shoot P concentration. AS + MF + M and Wj + MF + M treatments supported the maximum N uptake by wheat shoots, while BMC + MF+ M supported the maximum P uptake. The results showed that biochars and BMCs could increase mycorrhizal colonisation, plant growth and nutrient uptake of wheat, particularly N, P, K, S and Zn. The field experiment confirmed that BMC application at a rate of 300 kg ha-1could increase the yield of irrigated sorghum on a loam soil and provide better applied P use efficiency compared to a water-soluble fertiliser alone. These results indicated that biochar-based fertilisers might

关键词：生物矿物小麦生长生物炭菌根营养高粱复合物可持续发展能力

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Silvicultural Systems for Restoration of Mahogany in Degraded Landscapes in Africa: Influence of Mixed Rainforest Plantation on Growth and Pest Damage

引用

Open journal of Forestry 2014年第4期4卷 414-425页

作者： Emmanuel Opuni-Frimpong Nana Yaa Nyarko-Duah Ebenezer j. D. Belford andrew j. storer Faculty of Biosciences Kwame Nkrumah University of Science and Technology Kumasi Ghana Forestry Research Institute of Ghana Kumasi Ghana School of Forest Resources and Environmental Science Michigan Technological University Townsend USA

African mahogany, one of the world’s most valuable timber species is threatened by over-exploitation in natural forests and failure of plantations due to attacks by the shoot borer Hypsipyla robusta. Mixed-species plantations has been reported to be an effective component of integrated pest management of major pest in other crops;but there is very limited empirical data on its use for managing Hypsipyla in mahogany mixed stands in West Africa. The aim of this study was to assess the effect of mixed-species stands as management intervention, on the growth of Khaya grandifoliola and Khaya ivorensis in relation to Hypsipyla robusta attack in a 10 ha experimental plantation in the wet evergreen forest type in Ghana. Khaya grandifoliola recorded faster growth than Khaya ivorensis in this forest type though the later naturally grow in this forest type while the former is introduced from the dry forest. Two years after planting, diameter and height growth were greater in the mixed-species stand than the pure stands for K. grandifoliola and K. ivorensis. Hypsipyla damage was less in the mixed stands of both K. grandifoliola and K. ivorensis compared to the pure stands, with the 20% and 10% Khaya mixed stand recording the lowest attack in both species. It can be recommended that mixed stands of the two Khaya species at 20% or lower Khaya density might be ideal for reducing the levels of Hypsipyla attack in this type of forest.

关键词： African Mahogany Hypsipyla robusta Mixed Plantation Planting Density Khaya Species

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Relationship of the Sapstreak Fungus, <i>Ceratocystis virescens</i>, to Sugar Maple Dieback and Decay in Northern Michigan

引用

American journal of Plant Sciences 2013年第2期4卷 436-443页

作者： Tara L. Bal Dana L. Richter andrew j. storer Martin F. jurgensen School of Forest Resources and Environmental Science Michigan Technological University Houghton USA

Unusually high levels of dieback have recently been reported in sugar maple, Acer saccharum Marsh., in Upper Michigan, and a network of plots was established to determine the extent and factors associated with the dieback. A possible contributor to this dieback is sapstreak disease caused by Ceratocystis virescens (Davidson) Moreau. Unhealthy trees with considerable crown dieback were evaluated across the western Upper Peninsula, MI to determine the prevalence of the sapstreak fungus using a minimally destructive sampling technique. Approximately 8% of 90 trees sampled were sapstreak positive and approximately 10% of trees were positive at one site that had recently been harvested. While the high levels of maple dieback present in these forests appear not to be directly caused by widespread sapstreak disease, the occurrence of sapstreak may be significantly impacting trees at some locations. However, even when present on a low number of trees, the biointeraction of sapstreak and decay rates from other fungi could be important for future tree mortality and value to the forest industry. Therefore, the effect of two sapstreak fungal isolates on the amount of decay caused by two common maple white rot fungi, Trametes versicolor (L.:Fr.) Pilat. And Irpex lacteus (Fr.:Fr.) Fr. was tested in the laboratory. Sugar maple wood blocks were precolonized by two native isolates of C. virescens followed by inoculation and incubation with decay fungi. Mean percent weight loss of blocks by white rot decay fungi ranged from 39% to 55%, but decay rates were not significantly affected by the presence of the sapstreak fungus.

关键词： Sapstreak Disease Acer sacharrum Decay Rates Crown Dieback

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In search of effective therapies to overcome resistance to Temozolomide in brain tumours

引用

Cancer Drug Resistance 2019年第4期2卷 1018-1031页

作者： Kaouthar Bouzinab Helen Summers jihong Zhang Malcolm F.G.Stevens Christopher j.Moody Lyudmila Turyanska Neil R.Thomas Pavel Gershkovich Marianne B.Ashford Emily Vitterso Lisa C.D.storer Richard Grundy Tracey D.Bradshaw School of Pharmacy University of NottinghamNottingham NG72RDUK School of Chemistry University of NottinghamNottingham NG72RDUK School of Physics and Astronomy University of NottinghamNottingham NG72RDUK Advanced Drug Delivery Pharmaceutical SciencesR&DAstraZenecaMacclesfield SK104TFUK School of Medicine Queen’s Medical CentreUniversity of NottinghamNottingham NG72UHUK.

Glioblastoma multiforme is the most common and lethal brain *** current standard of care includes Temozolomide(TMZ)***,inherent and acquired resistance to TMZ thwart successful *** direct repair protein methylguanine DNA methyltransferase(MGMT)removes the cytotoxic O6-methylguanine(O6-MeG)lesion delivered by TMZ and so its expression by tumours confers *** mismatch repair(MMR)is essential to process O6-MeG adducts and MMR-deficiency leads to tolerance of lesions,resistance to TMZ and further DNA *** this article,two strategies to overcome TMZ resistance are discussed:(1)synthesis of imidazotetrazine analogues-designed to retain activity in the presence of MGMT or loss of MMR;(2)preparation of imidazotetrazine-nanoparticles to deliver TMZ preferably to the brain and tumour *** promising results encourage belief in a future where better prognoses exist for patients diagnosed with this devastating disease.

关键词： Brain cancer temozolomide-resistance analogues drug delivery apoferritin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：