نتایج جستجو برای: صنوبرpopulus deltoides
تعداد نتایج: 694 فیلتر نتایج به سال:
Diseases of poplar caused by the native fungal pathogen Sphaerulina musiva and related species are of growing concern, particularly with the increasing interest in intensive poplar plantations to meet growing energy demands. Sphaerulina musiva is able to cause infection on leaves, resulting in defoliation and canker formation on stems. To gain a greater understanding of the different responses ...
Uredinia of poplar leaf rust, Melampsora medusae Thüm f.sp. deltoides, appeared in late July 1998, June 1999, and August 2000 in a cottonwood (Populus deltoides Bartr.) stand in Ames, Iowa. Seedlings of the alternate host (eastern larch, Larix laricina (Du Roi) K. Koch) set out at the site in spring 2000 formed aecia 3 months before uredinia appeared. Using three PCR-based microsatellite marker...
سنک صنوبر Monosteira unicostata یکی از آفات مهم درختان خانوادةSalicaceae بهویژه درختان صنوبر در نهالستانها و صنوبرکاریها میباشد. طی سالهای 1381 تا 1384، خسارت این آفت روی 15 کلن بومی و غیربومی صنوبر که در دو قطعة آزمایشی در قالب طرح بلوکهای کامل تصادفی با سه تکرار در مرکز تحقیقات البرز کرج کاشته شده بودند، مورد ارزیابی قرار گرفت. این کلنها متعلق به گونههای Populus alba L.، Populus nigra L...
Analyses of individuals classically treated as Juniperus oxycedrus L. var. oxycedrus from Morocco, Portugal, Spain, France, Italy, Greece and Turkey, using DNA sequencing of nrDNA (ITS 1, 5.8S, ITS 2) plus RAPDs, leaf terpenoids and morphology revealed that two cryptic, genetically distinct but morphologically almost identical species are present. These species, J. oxycedrus L. var. oxycedrus a...
Node, internode, and leaf explants of Populus deltoides Bartr. ex Marsh. × Populus deltoides Bartr. ex Marsh. hybrid poplar clone (89 M 066) tissue culture regenerated plantlets were used for direct and indirect somatic embryogenesis. Direct somatic embryos were differentiated on node, internode and leaf explants on Murashige and Skoog basal medium (MS) supplemented with N 6 -Benzyladenine (BA)...
Discovery and annotation of small proteins using genomics, proteomics, and computational approaches.
Small proteins (10-200 amino acids [aa] in length) encoded by short open reading frames (sORF) play important regulatory roles in various biological processes, including tumor progression, stress response, flowering, and hormone signaling. However, ab initio discovery of small proteins has been relatively overlooked. Recent advances in deep transcriptome sequencing make it possible to efficient...
Background The development of fast-growing hardwood trees as a source of lignocellulosic biomass for biofuel and biomaterial production requires a thorough understanding of the plant cell wall structure and function that underlie the inherent recalcitrance properties of woody biomass. Downregulation of GAUT12.1 in Populus deltoides was recently reported to result in improved biomass saccharific...
شته برگ صنوبر از آفات مکنده صنوبر در کشور بحساب می‌آید. این شته از اکثر مناطق کشور گزارش شده و در بعضی از مناطق و سالها به عنوان آفت خسارتزا تلقی می‌گردد. این حشره با ترشح عسلک فراوان و اختلال در فتوسنتز موجب ضعف درختان میزبان می‌شود. نظر به تاثیری که گونه‌ها و کلن‌های میزبان روی فرایند رفتاری و تغذیه حشرات دارند، برخی از مولفه‌های رشد و نمو این حشره روی 11 کلن صنوبر متعلق به سه گونه Populus ni...
Abstract. Lands mined for coal and reclaimed under the Surface Mining Control and Reclamation Act (SMCRA) can be used to produce woody biomass. This study evaluates woody biomass production on SMCRA-reclaimed lands after ripping to reduce soil compaction. Four species treatments were established at two planting densities on three Wise County, Virginia, mine sites. Here, we review experimental t...
Acquired MeticillinResistant S. aureus Maria Teresa Rosanova, PhD; Sandra Gimenez; Rosa Bologna; Ana Buchovsky; Griselda Berberian, MD; Natalia Escudé; Guadalupe Perez; Claudia Sarkis; Jose L Pinheiro; Roberto Lede; Epídemiology and Infectious Diseases, Hospital de Pediatria JP Garrahan, Buenos Aires, Argentina; Hospital J P Garrahan, Buenos Aires, Argentina; Epidemiology and Infectious Disease...
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