نتایج جستجو برای: plant protease inhibitors
تعداد نتایج: 610431 فیلتر نتایج به سال:
Protease inhibitors, which can inhibit insect digestive enzymes, and carbohydrate binding lectins are potential control mechanisms against herbivorous insects. Larval midgut extracts fi-om Eldana saccharina Walker (Lepidoptera: Pyralidae) were assayed for protease activity in the presence of protease inhibitors in order to determine the dominant protease types (serine, aspartic, metalloor cyste...
During germination, the content of the major Bowman-Birk proteinase inhibitor (BB-E) in the cotyledons of soybean (Glycine max [L.] Merrill cv. Fiskeby V) seeds decreases, becoming a minor form by the sixth day of germination. One of the three other minor species (BB-D) of this inhibitor in the dry seed increases to become the major form in six-day cotyledons. The other two minor species (BB-C ...
Inducible defensive responses in plants are known to be activated locally and systemically by signaling molecules that are produced at sites of pathogen or insect attacks, but only one chemical signal, ethylene, is known to travel through the atmosphere to activate plant defensive genes. Methyl jasmonate, a common plant secondary compound, when applied to surfaces of tomato plants, induces the ...
بیماری سپتوریوز برگی گندم بوسیله قارچ mycosphaerella graminicolaایجاد می شود. این بیماری یکی از عوامل مهم کاهش عملکرد گندم در جهان به شمار می رود. در این مطالعه 5 ژن از پنج خانواده ژنی کاندیدای مقاومت به بیماری مورد بررسی قرار گرفتند. پرایمرهای اختصاصی با استفاده از نرم افزار molecular beacon طراحی شدند. بیان افتراقی این ژن ها در زمان های 0، 3، 6، 12 و 24 ساعت بعد از آلودگی در رقم مقاوم ونگشوبا...
The Bowman-Birk protease inhibitors from soybeans and chick peas suppress in vitro malignant transformation. This fluorescent microscopy study is designed to visualize the cellular site of action of these protease inhibitors. Binding and internalization of active protease inhibitors occur over a time course of 2 h. The rate and character of fluorescent micrographs obtained are compared to insul...
Pollen is one of the most common causes of allergy worldwide, making the study of their molecular composition crucial for the advancement of allergy research. Despite substantial efforts in this field, it is not yet clear why some plant pollens strongly provoke allergies while others do not. However, proteases and protease inhibitors from allergen sources are known to play an important role in ...
Midgut hydrolytic enzymes of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) were identified and partially characterized. Km, Vmax, optimum pH, and specific activity were determined for proteolytic enzymes and αamylases. All hydrolytic enzyme activity had an optimum pH value in the alkaline pH range. We observed major serine protease activity, together with minor cysteine-like activity, th...
A diverse range of plant proteases are implicated in pathogen perception and in subsequent signalling and execution of disease resistance. We demonstrate, using protease inhibitors and virus-induced gene silencing (VIGS), that the plant papain cysteine protease cathepsin B is required for the disease resistance hypersensitive response (HR). VIGS of cathepsin B prevented programmed cell death (P...
Defensins are a large family of small, cationic, cysteine-rich proteins that are part of the defense arsenal that plants use for protection against potentially damaging fungal infections. The plant defensin NaD1 from Nicotiana alata is a potent antifungal protein that inhibits growth and kills a variety of fungal pathogens that affect both plant and animal (human) hosts. Some serine protease in...
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