نتایج جستجو برای: plant root
تعداد نتایج: 499052 فیلتر نتایج به سال:
Objective: Bryophyllum pinnatum (Lam.) Kurz. is a medicinal herb commonly used to treat ulcers, cough, diabetes and cancer. In this study, antibacterial and antioxidant activity of aqueous and methanolic extracts of root, stem, leaf and whole plant of Bryophyllum pinnatum (Lam.) Kurz. have been evaluated. Method: In the present study, methanolic and aqueous extracts of root, stem, leaf and whol...
Aeroponic culture is an alternative method for optimizing growth of different plants in controlled conditions. Aeroponic systems are an efficient tool for the root studies and improving medicinal root production. In order to study the feasibility of valerian (Valeriana officinalis L.) production in aeroponic systems and assessing the effects of different NAA concentrations (0, 0.1, 0.3, and 0.5...
Phosphorus deficiency in soil is one of the major limiting factors for plant growth. Plasma membrane H+-ATPase (PM H+-ATPase) plays an important role in the plant response to low-phosphorus stress (LP). However, few details are known regarding the action of PM H+-ATPase in mediating root proton (H+) flux and root growth under LP. In this study, we investigated the involvement and function of di...
Salinity is a major environmental factor limiting plant growth in natural ecosystems. Glycyrrhiza glabra is an important Fabaceae (perennial plant) that its root and rhizome extracts are used in food, health, medical and pharmaceutical industries. To assess the effect of methyl jasmonate (MeJA) and salinity on licorice, an experiment was conducted as factorial based on completely randomiz...
The acquisition of water and nutrients by plant roots is a fundamental aspect of agriculture and strongly depends on root architecture. Root branching and expansion of the root system is achieved through the development of lateral roots and is to a large extent controlled by the plant hormone auxin. However, the pleiotropic effects of auxin or auxin-like molecules on root systems complicate the...
Plants associate—analogous to animals or us humans—with a multitude of microorganisms, which collectively function as a microbiome. A major discovery of the last decade is that numerous organisms of a microbiome (aka microbiota) are not unpretentious background actors. Instead, some microbiota members influence host processes including behavior, appetite, and health in animals (1) and contribut...
The iteration of the Lindenmayer system (L-system) has been used to animate the plant growth, however the development of the plant model at each time step is not smooth and continuous. This paper proposes an animating plant growth in L-system by a time embedded component and growth function for the length, size and position of each component of the plant shoot and root, such as, plant internode...
Arbuscular mycorrhizal (AM) fungi are mainly thought to facilitate phosphorus uptake in plants, but they can also perform several other functions that are equally beneficial. Our recent study sheds light on the factors determining one such function, enhanced plant protection from root pathogens. Root infection by the fungal pathogen Fusarium oxysporum was determined by both plant susceptibility...
As sessile organisms, root plasticity enables plants to forage for and acquire nutrients in a fluctuating underground environment. Here, we use genetic and genomic approaches in a "split-root" framework--in which physically isolated root systems of the same plant are challenged with different nitrogen (N) environments--to investigate how systemic signaling affects genome-wide reprogramming and ...
The mature root system is a vital plant organ, which is critical to plant performance. Commercial maize (Zea mays L.) breeding has resulted in a steady increase in plant performance over time, along with noticeable changes in above ground vegetative traits, but the corresponding changes in the root system are not presently known. In this study, roughly 2500 core root systems from field trials o...
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