نتایج جستجو برای: پالونیا paulownia fortunei

تعداد نتایج: 712  

پالونیا شان­تونگ(Paulownia shantong) درختی تند‌رشد، صنعتی و زینتی با خواص دارویی است. به‌دلیل مشکلات جوانه‌زنی ضعیف بذر و تکثیر دشوارتر قلمه‌های ساقه، تکثیر آن از طریق کشت بافت ضروری است. پژوهش حاضر به­منظور بررسی پینه‌زایی، جنین‌زایی رویشی و باززایی غیرمستقیم این گیاه صورت گرفت. آزمایش به‌صورت فاکتوریل در قالب طرح کاملاٌ تصادفی با پنج تکرار اجرا شد. عامل‌های مورد بررسی شامل نوع ریزنمون...

2014
Xibing Cao Guoqiang Fan Minjie Deng Zhenli Zhao Yanpeng Dong

DNA methylation is believed to play important roles in regulating gene expression in plant growth and development. Paulownia witches' broom (PaWB) infection has been reported to be related to gene expression changes in paulownia plantlets. To determine whether DNA methylation is associated with gene expression changes in response to phytoplasma, we investigated variations in genomic DNA sequenc...

2016
Yanpeng Dong Minjie Deng Zhenli Zhao Guoqiang Fan

Polyploidy plays a very important role in speciation and plant evolution by way of genomic merging and doubling. In the process of polyploidy, rapid genomic, and transcriptomic changes have been observed and researched. However, proteomic divergence caused by the effects of polyploidization is still poorly understood. In the present study, we used iTRAQ coupled with mass spectrometry to quantit...

Paulownia tomentosa (Thunb.) Steud. is a very important hard woody plant, an extremely fast-growing tree and produce timber. Therefore, there is a demand to produce transgenic Paulownia plant resistant to bacterial infection. Microbial infection (especially bacterial one) is serious sever and cause a loss in plant productivity as they bear upon the character and amount of plan...

Journal: :Revista Brasileira De Zootecnia 2021

The study aimed to evaluate the potential use of dried or ensiled paulownia (Paulownia spp.) leaves as roughage source for ruminants. Paulownia tree were collected from one-year-old hybrid (C-125, CAR, and TF-33 clones) trees. Dried clones different in dry matter (DM), crude ash (CA), protein (CP), ether extract (EE), fiber (CF), nitrogen-free (NfE) similar neutral detergent (NDF), acid (ADF), ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2009
G Darrigran W Boeger C Damborenea M Maroñas

The golden mussel Limnoperna fortunei (Dunker, 1857) (Mytilidae) is an invading species in continental waters in the Neotropical Region. L. fortunei is transported by human activities. Differing from fresh water bivalves native to the region, this mytilid has external fertility and a planktonic larval development similar to marine mytilids (Monteiros-Ribas et al., 2006). The impact produced by ...

در این بررسی استفاده از چوب پالونیا در ساخت تخته خرده‌چوب مورد توجه قرار گرفته است. مقدار درصد ترکیب ساخت در 4 سطح 25 ، 50 ، 75 و 100 درصد خرده‌چوب پالونیا و سه سطح زمان پرس 4، 5 و 6 دقیقه بعنوان عوامل متغیر در نظر گرفته شدند. سایر عوامل ساخت بعنوان عوامل ثابت در نظر گرفته شدند.پس از ساخت تخته خرده‌چوب خواص فیزیکی و مکانیکی آنها اندازه‌گیری شده است. سپس با استفاده از طرح فاکتوریل (2 عامله) کامل...

Journal: :Journal of environmental biology 2010
M Hakan Akyildiz Hamiyet Sahin Kol

The aim of this study is to determine some physical and mechanical properties of Paulownia tomentosa wood grown in Turkey. The samples trees harvested from Kargi in Corum. Physical properties including air-dry density oven-dry density basic density swelling, shrinkage and oven-dry and air-dry thermal conductivity coefficients; mechanical properties including bending strength, modulus of elastic...

Journal: :Acta Limnologica Brasiliensia 2021

Abstract: We optimized a methodology for plankton environmental DNA detection of the invasive golden mussel and validated it in samples from Southern Brazil reservoir. Limnoperna fortunei is successful alien species that causes significant impacts on freshwater ecosystems. adjusted to detect L. samples, with SYBR Green assay. Based standard curve analysis, observed theoretical minimal qPCR leve...

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