نتایج جستجو برای: گروه های عملکردی گیاهی pfts
تعداد نتایج: 521501 فیلتر نتایج به سال:
Pathogenic bacteria secrete various virulence factors, including toxins, lipases and proteases that allow them to infect, breakdown and colonize host tissue. Among various modes of action that the pathogenic bacteria use to damage the host, pore formation (by pore forming toxins (PFTs)) and lipid hydrolysis (by phospholipases) modes are common in damaging the eukaryotic cell membrane. PFTs in t...
Marine ecosystem models used to investigate how global change affects ocean ecosystems and their functioning typically omit pelagic plankton diversity. Diversity, however, may affect functions such as primary production and their sensitivity to environmental changes. Here we use a global ocean ecosystem model that explicitly resolves phytoplankton diversity by defining subtypes within four phyt...
Coronary artery disease (CAD) is the most common form of heart disease which gets precipitated by increasing stress, dietary habits and urban sedentary lifestyle. Pulmonary functions are found to be influenced in congestive heart failure, left ventricular dysfunction and after cardiac surgery. Pranayama breathing exercises & yogic postures play an impressive role in strengthening of respiratory...
Background: Many studies have shown that Hypertension is a chronic disease affecting many organs in the body. However, very few studies have been done to analyze the association between lung function and hypertension. It must be considered that antihypertensive treatment might have an effect on lung function, too. With this background the study was undertaken. Objectives: To assess and compare ...
The advent of pharmacological therapies for lymphangioleiomyomatosis (LAM) has made early diagnosis important in women with tuberous sclerosis complex (TSC), although the lifelong cumulative radiation exposure caused by chest computer tomography (CT) should not be underestimated. We retrospectively investigated, in a cohort of TSC outpatients of San Paolo Hospital (Milan, Italy) 1) the role of ...
بررسی و پایش ساختار و عملکرد اکوسیستم جهت پی بردن به مدیریت موجود امری ضروری به نظر می رسد. هدف از تحقیق حاضر، بررسی تأثیر ساختار مرتع بر شاخص¬های سطحی و ویژگی های عملکردی مراتع فتح¬آباد شهرستان فردوس با استفاده از روش تحلیل عملکرد چشم¬انداز (lfa) می¬باشد. در این روش سه ویژگی عملکردی پایداری، نفوذپذیری و چرخه مواد غذایی خاک با استفاده از ارزیابی 11 شاخص سطحی خاک شامل: حفاظت در برابر پاشمان، پوش...
Monitoring and forecasting of natural vegetation succession is essential for optimal management of river floodplain ecosystems in Western Europe. For example the development of woody vegetation types (e.g., softwood forest) increases the hydraulic resistance of the floodplain and can have negative effects on the discharge capacity of the river. However, from a biodiversity point-of-view this de...
in arid and semi-arid rangelands, grazing as one of the natural or human induced processes has direct and indirect effects on structure and dynamics of plant community and ecosystems. a study was done to analyze the effects of grazing on plant species diversity and plant functional types‘ (pfts) diversity of arid and semi-arid rangelands. we analyzed plant richness and diversity data from 75 sa...
در این آزمایش، مقایسه اثرات عصاره‌های اتانولی آویشن و رزماری بر خصوصیات عملکردی، فراسنجه‌های بیوشیمیایی خون، ریخت شناسی روده کوچک در جوجه‌های گوشتی مبتلا به آفلاتوکسیکوزیس مزمن انجام شد. بدین منظور، از 300 قطعه جوجه گوشتی سویه راس 308 در قالب طرح پایه کاملاً تصادفی استفاده شد، در قالب 4 گروه آزمایشی شامل: گروه آزمایشی اول، شاهد منفی: (جیره پایه بدون آفلاتوکسینB1)؛ گروه آزمایشی دوم، شاهد مثبت (جی...
Pore forming proteins are a broad class of pathogenic secreted by organisms as virulence factors due to their ability form pores on the target cell membrane. Bacterial pore toxins (PFTs) belong subclass widely implicated in bacterial infections. Although action PFTs cells have been investigated, underlying membrane response lipids during binding and formation has received less attention. With a...
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