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4. Phloem I 5. Sclerenchyma 6. Cortex 7. Epidermis. In botany, a cortex is an outer layer of a stem or root in a vascular plant, lying below the epidermis but outside of the vascular bundles. [1] The cortex is composed mostly of large thin-walled parenchyma cells of the ground tissue system and shows little to no structural differentiation. [2]
[2] [3] It is the outer layer of a plant's cortex. [1] [4] The exodermis serves a double function as it can protect the root from invasion by foreign pathogens and ensures that the plant does not lose too much water through diffusion through the root system and can properly replenish its stores at an appropriate rate. [5]
With increased demand from the herbal medicine industry, locals have over-harvested the plant in the wild. [4] The species is slow-growing, taking around 10 years to reach maturity. [ 3 ] Larger-scale commercial farming operations have been affected by theft of the plants. [ 5 ]
Root hair cells improve plant water absorption by increasing root surface area to volume ratio which allows the root hair cell to take in more water. The large vacuole inside root hair cells makes this intake much more efficient. Root hairs are also important for nutrient uptake as they are main interface between plants and mycorrhizal fungi.
There are two types of apical meristem tissue: shoot apical meristem (SAM), which gives rise to organs like the leaves and flowers, and root apical meristem (RAM), which provides the meristematic cells for future root growth. SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status.
President Ngo Dinh Diem and family at his home in Hue (Central Viet Nam).jpg; President Ngo Dinh Diem on an inspection tour 350 km from Saigon (December, 1956).jpg; Portrait of Ngô Đình Diệm, from the book Ngo Dinh Diem of Viet-Nam.jpg; President Ngo Dinh Diem with the troops who defeated the Binh-Xuyen at Rung-Sat (May, 1955).jpg
Most words are created by either compounding or reduplicative derivation. Affixation is a relatively minor derivational process. Older styles of Vietnamese writing wrote polysyllabic words with hyphens separating the syllables, as in cào-cào "grasshopper", sinh-vật-học "biology", or cà-phê "coffee".
Nguyễn Thái Học, founder and leader of the VNQDD, 1930. Nguyễn Thái Học (Vietnamese pronunciation: [ŋwiən˦ˀ˥ tʰaːj˧˦ hawk͡p̚˧˨ʔ]; chữ Hán: 阮 太 學; 1 December 1902 – 17 June 1930) was a Vietnamese revolutionary and independent activist who was the founding leader of the Việt Nam Quốc Dân Đảng, namely the Vietnamese Nationalist Party.