نتایج جستجو برای: populus alba l

تعداد نتایج: 626684  

Journal: :Plant physiology 2000
C Chen H Meyermans B Burggraeve R M De Rycke K Inoue V De Vleesschauwer M Steenackers M C Van Montagu G J Engler W A Boerjan

Caffeoyl coenzyme A-3-O-methyltransferase (CCoAOMT) plays an important role in lignin biosynthesis and is encoded by two genes in poplar (Populus trichocarpa). Here, we describe the expression pattern conferred by the two CCoAOMT promoters when fused to the gus-coding sequence in transgenic poplar (Populus tremula x Populus alba). Both genes were expressed similarly in xylem and differentially ...

Journal: :Tree physiology 2006
Hao Wei Richard Meilan Amy M Brunner Jeffrey S Skinner Caiping Ma Steven H Strauss

Transgenic sterility is a desirable trait for containment of many kinds of transgenes and exotic species. Genetically engineered floral sterility can be imparted by expression of a cytotoxin under the control of a predominantly floral-tissue-specific promoter. However, many otherwise desirable floral promoters impart substantial non-floral expression, which can impair plant health or make it im...

2012
Robert D. Swanson

The law surrounding the patentability of computer-implemented inventions is extraordinarily unclear. Thankfully, the Federal Circuit has granted rehearing en banc to CLS Bank v. Alice to determine the test for computer-implemented inventions under § 101. This Note identifies three current approaches in Federal Circuit doctrine, and finds each lacking. In their place, this Note proposes and defe...

ژورنال: پژوهش های گیاهی 2017

درختان صنوبر کبوده (Populus alba) و پده (P. euphratica) از گونه‌های بومی کشور می‌باشند. صنوبر کبوده به لحاظ سازگاری و تولید چوب و فرم کیفی تنه وگونه صنوبر پده نیز به‌دلیل مقاومت به شرایط اقلیمی گرم و خشک و شوری خاک از پتانسیل‌ مناسبی جهت زراعت چوب برخوردارند. هدف این تحقیق ارزیابی رشد چهار کلن صنوبر (P. alba 58.57, P. alba 44.9, P. euphratica و هیبرید P. euphratica x P. alba 44/9) درعرصه-های...

2018
Antonio I Arroyo Yolanda Pueyo M Luz Giner Ana Foronda Pedro Sanchez-Navarrete Hugo Saiz Concepción L Alados

Many studies have reported the phytotoxicity of allelopathic compounds under controlled conditions. However, more field studies are required to provide realistic evidences for the significance of allelopathic interference in natural communities. We conducted a 2-years field experiment in a semiarid plant community (NE Spain). Specifically, we planted juvenile individuals and sowed seeds of Sals...

2007
Guillermo Guerao Christoph D. Schubart CHRISTOPH D. SCHUBART

Complete larval development and first crab stages of the sesarmid crabs Armases roberti (H. Milne Edwards, 1853) and A. ricordi (H. Milne Edwards, 1853) from Jamaica were obtained from laboratory culture. All larval stages (four zoeal stages and the megalopa) and the first juvenile crab stage of A. roberti are described and illustrated in detail for the first time, and a previous description of...

ریزازدیادی دورگ‌های دو طرفه پده ((Populus euphratica و کبوده(P. alba) با برداشت سرشاخه از پایه‌های دورگ‌های تولید شده مستقر در مزرعه تحقیقاتی مؤسسه تحقیقات جنگل‌ها و مراتع کشور مورد ارزیابی قرار گرفت. پس از پیش سترون‌سازی توسط برس‌کشی با آب و ما‌یع ظرفشویی، جوانه‌های جدا شده به همراه بخشی از ساقه (1 تا 5/1 سانتی متر) توسط کلرور مرکوریک 1/0% (W/V) به مدت 1 دقیقه سترون گشته و در محیط کشت MS همراه...

2003
Michael P. Cummings

19 20 21 Pimm, S.L. (1982) Food Webs, Chapman &Hall Lawton, J.H. (1989) Ecological Concepts (Cherrett, J.M., ed.), pp. 43-78, Blackwell Pimm, S.L., Lawton, J.H. and Cohen, J.E. (1991) Nature 350,669-674 Martinez, N.D. (1991) Ecol. Monogr. 61,367-392 Paine, R.T. (1988) &o/o9 69,1648-1654 Pimm, S.L. (1984) Nafure 307,321-326 Pimm, S.L. (1991) The Balance ofNature? University of Chicago Press Hall...

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