Results 121 to 130 of about 1,121 (160)
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Functions of passage cells in the endodermis and exodermis of roots
Physiologia Plantarum, 1996Passage cells frequently occur in the endodermis and exodermis but are not ubiquitous in either layer. Passage cells occur in the form of short cells in the dimorphic type of exodermis. In both layers, Casparian bands are formed in all cells, but the subsequent development of suberin lamellae and thick, cellulosic walls are delayed or absent in the ...
Carol A. Peterson, Daryl E. Enstone
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Impact of the exodermis on infection of roots by Fusarium culmorum
Plant and Soil, 1994Patterns of infection withFusarium culmorum (W G Smith) Saccardo were observed in seedling roots of barley (Hordeum vulgare L.), wheat (Triticum aestivum L.), maize (Zea mays L.) and asparagus (Asparagus officinalis L). Apical regions of the main roots were not infected.
Susan A. Kamula +2 more
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Water Retention Capacity in Root Segments Differing in the Degree of Exodermis Development [PDF]
Annals of Botany, 1999 Water loss from roots back into drying soil is a problem of practical importance in plants growing under conditions of very low substrate water potential, such as dry or saline areas. Root exodermis is relatively impermeable and has been suggested to play a protective role against water loss.
Edith Taleisnik
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Spatial and temporal deposition of suberin during maturation of the onion root exodermis
Botany, 2011Suberin is a complex biopolymer composed of a poly(aliphatic) domain (SPAD) and a poly(phenolic) domain (SPPD). Suberin is typically confined to specialized cell types including root exodermal cells, but its synthesis in a maturing exodermis is still not well understood.
Mark Bernards +2 more
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Apoplastic transport across young maize roots: effect of the exodermis
Planta, 1998The uptake of water and of the fluorescent apoplastic dye PTS (trisodium 3-hydroxy-5,8,10-pyrenetrisulfonate) by root systems of young maize (Zea mays L.) seedlings (age: 11–21 d) has been studied with plants which either developed an exodermis (Casparian band in the hypodermis) or were lacking it.
Ernst Steudle
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Root Endodermis and Exodermis: Structure, Function, and Responses to the Environment
Journal of Plant Growth Regulation, 2002Roots of virtually all vascular plants have an endodermis with a Casparian band, and the majority of angiosperm roots tested also have an exodermis with a Casparian band. Both the endodermis and exodermis may develop suberin lamellae and thick, tertiary walls. Each of these wall modifications has its own function(s).
Daryl E. Enstone +2 more
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Morphological Identity of the Velamen and Exodermis in Orchids
Botanical Gazette, 19441. Historical concepts of the velamen and exodermis are reviewed. 2. Twenty species and hybrids, representing thirteen genera of orchids, were investigated to determine the origins of the velamen and exodermis. 3. Fourteen orchid root tips belong to the category of histogens known as type I; the other six belong to Haberlandt's type VI. 4.
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Analysis of aliphatic waxes associated with root periderm or exodermis from eleven plant species [PDF]
Phytochemistry, 2015 Aliphatic waxes can be found in association with suberized tissues, including roots. Non-polar lipids were isolated by rapid solvent extraction of mature regions of intact roots from eleven angiosperms, including both monocots and dicots. The majority of roots analyzed were taproots or tuberous taproots that had undergone secondary growth and thus were
Dylan Kosma, Mike Pollard
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Infection of barley roots by Chaetomium globosum: evidence for a protective role of the exodermis
Mycological Research, 2003Plant pathogenesis by fungi is known to be dependent on the host genotype, the virulence of the pathogen and certain environmental conditions influencing fungal establishment. Previously, it has been shown that Chaetomium globosum, a fungus well-characterized for its biocontrol potential, causes necrosis on barley roots grown in Murashige and Skoog (MS)
Annette, Reissinger +4 more
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Significance of the exodermis in root function
1989An exodermis is a specialized type of hypodermis which often occurs in roots. The hypodermis, like the endodermis, is part of the cortex since it is derived from the ground meristem. The hypodermis and endodermis form the outer and inner boundaries of the cortex, respectively.
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