Protease inhibitors, a class of proteins which reversibly, stoichiometrically and competitively inhibit the catalytic activity of proteolytic enzymes, are widespread in plants, animals and microorganisms. They are abundant in the reproductive and storage organs and vegetative tissues of most plant families (Ryan, 1990). These proteins, apart from regulating proteolytic processes, are also invol...

Most plant biomass allocation studies have focused on allocation to shoots versus roots, and little is known about drivers of allocation for aboveground plant organs. We explored the drivers of within-and between-species variation of aboveground biomass allocation across a strong environmental resource gradient, i.e., a long-term chronosequence of 30 forested islands in northern Sweden across w...

Plant growth and carbon metabolism are closely associated since carbohydrate in the form of sucrose generated by photosynthesis, provides the primary source of building blocks and energy for the production and maintenance of biomass. Regulation of carbon partitioning between source and sink tissues is important because it has a vast influence on both plant growth and development. The regulation...

Most plant seeds tolerate desiccation, but vegetative tissues are intolerant to drastic dehydration, except in the case of resurrection plants. Therefore, changes in the regulation of genes normally expressed in seeds are thought to be responsible for the evolutionary origin of desiccation tolerance in resurrection plants. Here, we show that constitutive overexpression of the seed-specific HSFA...

Little is understood about the nutritional status of manganese (Mn) in oil palm (Elaeis guineensis Jacq.), further research needed to provide technological support for greater productivity, especially on dynamics accumulation, recycling, immobilization and export. Thus, objective this work was evaluate immobilization, exportation efficiency Mn use plants at different ages. The experiment carrie...

The internal anatomical structure of the above-ground vegetative organs S. nigrum  from Georgian flora - a rich source physiologically active compounds, has been examined using conventional laboratory methods used in microtechnics. study revealed diagnostic markers prospective medicinal plant. nigrum's aboveground are covered with conical, multicellular, hooked villis and rare spheroidal g...

Turions are frost resistant, vegetative dormant organs produced by aquatic plants. Tissue N, P, K, Ca, and Mg content was estimated in turions of 5 rooting, non-carnivorous plant species of the genera Caldesia, Hydrocharis, and Potamogeton and in 7 rootless carnivorous plant species of the genera Aldrovanda and Utricularia, and compared with concentrations of these nutrients in ambient waters e...

Anatomical structure of the common in forests and meadows Georgian subalpine zone plant - Aconitum nasutum Fisch. ex Reichenb underground aerial vegetative organs, rich diterpene alkaloids, was studied. A set diagnostic features has been established using accepted microtechnical methods. The conductive system axial organs A. nasutum, root, twig leaf stalk, a separated collateral structure. Casp...

Helicoverpa armigera is a pest insect with large dispersal range, high degree of polyphagy in the larval stage, and difficult control. The pest's ability to survive due availability food persist grain production systems present several Brazilian regions allows it infest wide range crops, including soybeans invasive plants during off-season. There general knowledge that larva prefers feed on pla...

MicroRNAs (miRNAs) are post-transcriptional regulators of growth and development in both plants and animals. Flowering is critical for the reproduction of angiosperms. Flower development entails the transition from vegetative growth to reproductive growth, floral organ initiation, and the development of floral organs. These developmental processes are genetically regulated by miRNAs, which part...