منابع مشابه
The evaluation of Murray's law in Psilotum nudum (Psilotaceae), an analogue of ancestral vascular plants.
Previous work has shown that the xylem of seed plants follows Murray's law when conduits do not provide structural support to the plant. Here, compliance with Murray's law was tested in the stem photosynthesizer Psilotum nudum, a seedless vascular plant. Psilotum nudum was chosen because the central stele does not provide structural support, which means that Murray's law is applicable, and beca...
متن کاملTwo separate genes encode the catalytic 70 kDa V-ATPase subunit in Psilotum and Equisetum.
Vacuolar type ATPases have been found on various endomembranes of eukaryotic cells, e.g. lysosomes, chromaffin granules, vesicles derived from the Golgi apparatus, endosomes and vacuoles. Although this ATPase type is targeted to different compartments in one cell, only one gene for each subunit had been found per genome. Using PCR across intron-exon boundaries we show that two different genes e...
متن کاملاولین گزارش گونه (Psilotum nudum (Psilotaceae از ایران
طی یک برنامه جمع‌آوری جهت احداث هرباریومی در غرب مازندران، نمونه‌هایی از گونه Psilotum nudum از رویشگاهی طبیعی جمع‌آوری گردید. نمونه های جمع‌آوری شده به صورت اپیفیت در حفره‌های روی درختان انجیلی (Parrotia persica) که با پسمانده گیاهان پر شده بود، یافت گردید. پس از جمع‌آوری نمونه‌ها، کتابهای در دسترس مربوط به پتریدوفیت‌های ایران بازبینی و مشاهده شد، چنین گیاهی از ایران گزارش نشده بود. این نمونه ...
متن کاملThe Effectiveness of Teaching Daring Behavioral Skills Training on Critical Thinking and Happiness in Secondary Secondary School Students in Bushehr
The purpose of this study was to investigate the effectiveness of teaching courage behavior skills on critical thinking and happiness among high school students in Bushehr. The research method is a quasi-experimental design with pre-test and post-test design. The statistical population of this study was 8238 secondary school students in Bushehr. 40 students were selected through multistage clus...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1904
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1904.tb05839.x