TAILIEUCHUNG - Development of the successive cambia in Sesuvium verrucosum Raf (Aizoaceae)

The structure and development of successive cambia and its products were studied in the stems of the halophyte Sesuvium verrucosum Raf. The young stem has several collateral vascular bundles arranged in a circle and separated by interfascicular zones. The secondary thickening begins with the differentiation of fascicular and interfascicular cambia which give rise to secondary xylem, phloem and lignified cells. | Annals of Agricultural Science 2015 60 2 203 208 H O S T E D BY Faculty of Agriculture Ain Shams University Annals of Agricultural Science locate aoas ORIGINAL ARTICLE Development of the successive cambia in Sesuvium verrucosum Raf Aizoaceae Ola H. Abd Elbar Agric. Botany Dept. Fac. Agric. Ain Shams Univ. 68 Hadayek Shoubra 11241 Cairo Egypt Received 29 June 2015 accepted 26 July 2015 Available online 11 November 2015 KEYWORDS Abstract The structure and development of successive cambia and its products were studied in the Sesuvium verrucosum stems of the halophyte Sesuvium verrucosum Raf. The young stem has several collateral vascular Successive cambia bundles arranged in a circle and separated by interfascicular zones. The secondary thickening begins Stem anatomy with the differentiation of fascicular and interfascicular cambia which give rise to secondary xylem phloem and lignified cells. This normal cambium ceases to divide after a limited period of activity. A new segment of anomalous cambium was developed from the phloem parenchyma cells outside the normal previous cambium. These cells are served as a site for the origin of the anomalous cambium and subjected to repeated periclinal divisions. This cambium has fusiform cells with semi-storied appearance. The activity of this anomalous cambium produces secondary xylem phloem fibers and soft parenchyma as conjunctive tissues. The formation of subsequent cambia followed a similar pattern of development and causes vascular increments in the old stem. So the old stem of S. ver- rucosum is constructed of concentric fibrovascular bands separated from each other by cylinders of conjunctive parenchyma tissue. This internal structure has a great adaptive potential to the halo- phyte S. verrucosum. This can be detected by the following points 1 Production of large number of vessels and sieve tubes elements increases the conductive activity 2 Occurrence of fibers along- side the vessels increases the .

• Sinh học
• Agricultural science
• Development of the successive cambia
• Sesuvium verrucosum Raf
• Sesuvium verrucosum
• Successive cambia
• Stem anatomy
• Report for Asian development bank
• Strategy agricultural science
• Strategy technology
• The agricultural research
• Agricultural Development
• Major Agricultural
• General Goal
• General Roadmap
• Technology Development
• Nutrition of basil
• Ocimum basilicum L
• Soilless agricultural systems
• Traditional agricultural systems
• Journal of Vietnam Agricultural Science and Technology
• Tạp chí Khoa học Công nghệ Nông nghiệp Việt Nam
• Agricultural cooperation research
• Agricultural products
• China Myanmar cooperation
• Intra industry trade
• Agricultural research scholars
• Internet of agriculture science
• Agriculture science
• Different search engines
• Getting information
• Internet on other media
• Research scholar
• Attitude and Utilization
• Agriculture science in MPUAT
• Agricultural Sciences
• Research Contributions
• Agricultural Productivity
• International Dimensions
• Agricultural Scientist
• Science technology
• Agricultural economy
• High tech agriculture
• High tech agriculture of Vietnam
• Agricultural structure shift
• Agro food value chain
• Trade policy Vietnam
• Vietnam’s agricultural export
• The agricultural market
• Economics science
• Business science
• Livelihood models
• Clean agricultural products
• Sustainable development
• Tạp chí khoa học
• Tạp chí Công nghệ
• Quản lý công nghệ
• Science technology solution
• Forestry agricultural production
• Agriculture of mountainous regions
• North mountainous regions
• Research articles
• Internet and preference
• Preference of location
• Access to internet
• Rajasthan and agriculture
• Socio psychological
• Educational constraints constraints faced
• Agricultural research scholars while
• Food Supplies
• Agricultural Research
• Subjective Reflections
• Vadis International
• Water Management
• Current Status
• Cassava Mealybug
• Rain Forests
• Global Partnership
• Costa Rica
• Vietnam Journal of Science and Technology
• Kinetics of pyrolysis reaction
• Agricultural residues in Vietnam
• Corn cob and sugarcane bagasse
• Pyrolysis or gasification
• Climate indicators on agricultural yields
• Son La province
• The Winter Spring crop
• Total annual rainfall tend
• Journa science
• International journal of financial research
• Green trade barrier
• Trade protectionism
• Environment protection
• Good agricultural practices
• Driving agricultural products
• Vietnam Mekong Delta Area
• Socio economic development
• Aquatic products demonstrated
• Non concentrated cultivation
• Potato staple food
• Consumption oriented collaborative extension model
• Agricultural machinery
• Food self sufficiency rate
• Family farming policy
• Agricultural policy
• Household economics
• Vietnamese agriculture reforms
• science and technology
• economic policy
• agricultural projects
• agro forestry techniques
• livestock farming
• agribusiness
• air pollution
• agriculture
• standards
• development
• Reconciling Science
• Standard Setting
• Environmental science
• Renewable energy sources
• Biodiversity issues
• Agricultural methods
• Solid waste management
• Resource Base
• Rural Livelihoods
• Project Assessments