丛枝菌根真菌对鸢尾的促进作用研究     

陈媛  王立  马放  姜晓峰  董静 《农业环境与发展》2014,(3)

为高效利用水陆两栖植物鸢尾修复污染水体,本研究通过测定不同的丛枝菌根真菌(AMF)与鸢尾构建共生体系的生长指标、土壤理化性质及植物光合作用指标,探讨不同AMF对水生植物鸢尾的促进作用。结果表明:AMF对鸢尾的促进作用主要体现在地上及地下两部分,其中地下部分通过利用其庞大的菌丝网络吸收土壤中的营养物质,进而促进了鸢尾的生长,其中对比无菌剂侵染的空白植物,摩西球囊霉作用的鸢尾对氮元素的吸收率提高71.75%,磷元素的吸收率提高8.36%,而根内球囊霉作用的鸢尾对氮元素的吸收率提高42.55%,磷元素的吸收率提高9.5%;而地上部分则是通过加强叶片气孔导度的开启来调控植物净光合速率与蒸腾速率之间的平衡,进而提高了鸢尾的最优水资源利用率,加快植物的新陈代谢,最终促进植物的生长发育。其中对于鸢尾光合作用的调节摩西球囊霉的促进效果显著好于(P0.05)根内球囊霉。  相似文献   

球根鸢尾的病毒鉴定及试管脱毒成球技术   总被引：7，自引：0，他引：7  

袁梅芳 《园艺学报》1998,25(2):175-178

对上海地区球根鸢尾进行了病毒病害调查。经检测初步确定球根鸢尾普遍存在鸢尾重花叶病毒、鸢尾轻花叶病毒、水仙潜隐病毒３种病毒的复合侵染。对带毒种球进行茎尖组培脱毒,得出了茎尖诱导成芽、芽成球及小球生根的培养基配方。将组培苗在试管苗、成球苗、移栽苗等不同时期进行病毒检测,结果表明,小于１．０ｍｍ的茎尖诱导的幼苗可脱去上述３种病毒。  相似文献   

丛枝菌根真菌对鸢尾的促进作用研究   总被引：1，自引：1，他引：0  

陈媛  王立  马放  姜晓峰  董静 《农业环境科学学报》2014,31(3):265-272

为高效利用水陆两栖植物鸢尾修复污染水体,本研究通过测定不同的丛枝菌根真菌(AMF)与鸢尾构建共生体系的生长指标、土壤理化性质及植物光合作用指标,探讨不同AMF对水生植物鸢尾的促进作用。结果表明:AMF对鸢尾的促进作用主要体现在地上及地下两部分,其中地下部分通过利用其庞大的菌丝网络吸收土壤中的营养物质,进而促进了鸢尾的生长,其中对比无菌剂侵染的空白植物,摩西球囊霉作用的鸢尾对氮元素的吸收率提高71.75%,磷元素的吸收率提高8.36%,而根内球囊霉作用的鸢尾对氮元素的吸收率提高42.55%,磷元素的吸收率提高9.5%;而地上部分则是通过加强叶片气孔导度的开启来调控植物净光合速率与蒸腾速率之间的平衡,进而提高了鸢尾的最优水资源利用率,加快植物的新陈代谢,最终促进植物的生长发育。其中对于鸢尾光合作用的调节摩西球囊霉的促进效果显著好于(P<0.05)根内球囊霉。  相似文献   

Effects of Dual Microalgal Species Biofilms on New Zealand Black-Footed Abalone (Hailotis iris) Larval/Post-Larval Processes     

Che-Huang Tung 《Journal Of Applied Aquaculture》2013,25(1):14-31

Dual microalgal species biofilms with distinct amino acid characteristics were tested for their effects on abalone (Haliotis iris) initial attachment, metamorphosis, settlement, and survival. Nine microalgal species, isolated from around Auckland, New Zealand, were grown in the laboratory, and used to produce nine dual microalgal species biofilms. Abalone larvae were exposed to the different biofilm treatments and controls (no biofilms) for seven (attachment and metamorphosis) and 14 (settlement and survival) days. The larvae performed significantly better in the dual microalgal biofilms compared to controls, and some biofilms resulted in better attachment, metamorphosis, settlement, and survival than others. For example, the best-performing biofilms almost always contained cyanobacteria (Oscillatoria cf. erythrata, Anacystis cf. aeruginosa, and Schizothrix cf. calcicola), which are attributed with better nutritional values. However, the amino acid profiles did not produce a clear pattern with regard to their effects on the four larval processes. Instead, total amino acid (TAA) content was positively correlated with percentage of attachment and metamorphosis. Greater TAA contents are likely to reflect greater amounts of extra-cellular polymers within the biofilms, which are suggested to improve larval performance.  相似文献   

Cloning of vacuolar H<Superscript>+</Superscript>-ATPase subunit c genes from Japanese iris,and functional characterization in yeast     

Ai-min Zhou  Duo Wu  Dai-di Che  Shen-kui Liu  Chuan-ping Yang  Jin-gang Wang 《林业研究》2011,22(3):361-366

Five different isoforms (IrlVHA-c1-c5) of V-ATPase subunit c (VHA-c) were cloned from a Japanese iris (Iris lactea Pall. var. chinensis Fisch. Koidz) cDNA library using degenerate primers PCR and the 5'-RACE technique. The sequence analysis showed the open reading frame (ORF) of the IrlVHA-c1 c5 to be 495 bp, corresponding to a protein of 164 amino acids. Among the five isoforms, IrlVHA-c1 and IrlVHA-c2 are completely homologous. The IrlVHA-c protein is localized at the vacuolar membrane as indicated by a g...  相似文献   

Cytokinins in iris bulb-scales under flower-inducing conditions     

Giovanna Gregorini 《Scientia Horticulturae》1983,21(2):155-158

Cytokinin activity was detected by means of the soybean callus test in the scales of Iris hollandica Hoog cultivar ‘Prof. Blaauw’ during the cold treatment for flower formation. A component of the biological activity extracted from the bulb scales coeluted with zeatin riboside when subjected to high-performance liquid chromatography. It is suggested that the cytokinins in the scales may be involved in flower formation.  相似文献   

黄鸢尾对牛场养殖废水肥用过程中的耐受性研究     

丁飞飞  张克强  渠清博  赵芙  杨鹏  沈晨 《农业环境科学学报》2019,36(2):214-220

为更有效地利用水生植物黄鸢尾处理牛场养殖废水,初步探明黄鸢尾净化牛场养殖废水过程中的关键影响因素,以不同稀释比例牛场废水水培黄鸢尾为研究对象,通过探究黄鸢尾的生长速率与稀释浓度的关系,分析黄鸢尾生长速率与各个污染物指标去除率之间相关性,研究黄鸢尾在牛场废水不同稀释浓度下的耐受性。结果表明：黄鸢尾作为水质净化系统中常见的植物,能有效降低牛场废水中的氮磷,净化水质。当牛场废水浓度高于T3水平（15∶1稀释）时,表现出生长受抑制,一周之后,黄鸢尾对COD、NH₄⁺-N、TN和TP的去除率可以达到57.1%、59.49%、82.59%和72.39%,其中对TN、TP去除效果最为显著。研究表明,当牛场废水稀释之后,控制稀释比例在T3水平时,黄鸢尾生长不会受到抑制,对牛场粪污废水中的污染物表现出较好的消纳和去除效果。  相似文献   

Physiological characterization of ocular melanosis‐affected canine melanocytes     

Ethan M. Dawson‐Baglien  Erica L. Noland  Dodd G. Sledge  Matti Kiupel  Simon M. Petersen‐Jones 《Veterinary ophthalmology》2019,22(2):132-146

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Population dynamics of iris yellow spot virus in onion fields and lisianthus greenhouses in Japan          下载免费PDF全文

S. Fuji  S. Zen  I. Sato  H. Kishi  H. Furuya  M. Okuda 《Plant pathology》2015,64(4):808-816

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Iris abscesses with and without intralenticular fungal invasion in the horse     

Dennis E. Brooks  David P. Taylor†  Caryn E. Plummer  Rick Quinn‡  Maria E. Kallberg  Barbara Sheppard†  Kathleen P. Barrie  Sarah E. Blackwood  Catherine M. Nunnery  Gil Ben-Shlomo  Carol J. Clark§  Avery A. Woodworth 《Veterinary ophthalmology》2009,12(5):306-312

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