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Aerenchyma in stem cross section of a typical wetland plant. Aerenchyma or aeriferous parenchyma [1] or lacunae, is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. [2]
Limnobium laevigatum is a floating aquatic plant, which can be mistaken for water hyacinth (Eichornia crassipes) due to their superficial similarity.Juvenile plants grow in rosettes of floating leaves that lie prostrate upon the water surface, a distinguishing character of the juvenile plant is the presence of spongy aerenchyma tissue upon the abaxial surface (underside) of the leaf.
Parenchyma is a versatile ground tissue that generally constitutes the "filler" tissue in soft parts of plants. It forms, among other things, the cortex (outer region) and pith (central region) of stems, the cortex of roots, the mesophyll of leaves, the pulp of fruits, and the endosperm of seeds.
SCORE: SCORE is a nonprofit organization providing free mentoring and educational resources for small business owners. Its network of volunteers offers guidance on all aspects of business ...
Get advice on starting a business started.
Tools used for controlling and improving business processes. Tools used for data consolidation and decision making. Nowadays, management tools have evolved dramatically in the last decade thanks to fast technology advances, so fast that it is difficult to select the best business tools for any situation in any company. [4]
Service Corps of Retired Executives (SCORE) is a non-profit organization of volunteer counselors who provide free mentoring, education programs, workshops, and webinars to small businesses. [2] SCORE is a resource partner of the U.S. Small Business Administration (SBA) who administers a Congressional grant which provides SCORE with funding.
Small business owners have had a mostly positive reaction to a judge's decision to strike down an overtime rule that would have qualified more workers for overtime pay. On Nov. 15, a federal judge ...