منابع مشابه
Symbiosis, inventiveness by recruitment?
With one notable exception, namely the genus Parasponia in the elm family, the ability to form nitrogen-fixing symbiosis with gram-negative soil bacteria known as rhizobia is restricted to the legume family, Leguminosae. It has been well established that initiation of successful nodular symbiosis requires strict compatibility between rhizobial-secreted Nod factors and a perception machinery of ...
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I admit to having a soft spot for the bacterial phenomenon of host-specific modification and restriction. I vividly remember first learning about this mechanism to stave off marauding DNA as a beginning graduate student in the mid1970s. Preceding the discovery of its modern-day defensive counterpart, CRISPR (clustered regularly interspaced short palindromic repeats) by about 50 years, restricti...
متن کاملSymbiosis
What is in store for the guppy? Variation is essential to understanding the genetics underlying biological processes. The guppy provides a huge amount of natural variation that can be studied genetically. This variation has not been produced by mutagenesis screens, but instead has been shaped by natural selection. Thus, combined with emerging genomic resources, the guppy is an ideal organism fo...
متن کاملRecruitment of novel calcium-binding proteins for root nodule symbiosis in Medicago truncatula.
Legume rhizobia symbiotic nitrogen (N2) fixation plays a critical role in sustainable nitrogen management in agriculture and in the Earth's nitrogen cycle. Signaling between rhizobia and legumes initiates development of a unique plant organ, the root nodule, where bacteria undergo endocytosis and become surrounded by a plant membrane to form a symbiosome. Between this membrane and the encased b...
متن کاملE-recruitment in Iran
Abstract In recent years, the practice of using corporate websites to recruit job applicants has increased steadily. The aim of this paper is to review and analyze the E- recruitment in Iran. in this article, we examine e-recruitment situation in premier 100 Iranian organizations through websites content analysis. These top 100 organizations were introduced by the IMI in 1390. This ranking is ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2003
ISSN: 1532-2548,0032-0889
DOI: 10.1104/pp.017186