Genetic Dissection of Root Formation in Maize (Zea mays) Reveals Root-type Specific Developmental Programmes
نویسندگان
چکیده
منابع مشابه
Root-type-specific plasticity in response to localized high nitrate supply in maize (Zea mays).
BACKGROUND AND AIMS Shoot-borne roots contribute to most of the nutrient uptake throughout the life cycle of maize (Zea mays). Compared with numerous studies with embryonic roots, detailed information on the phenotypic plasticity of shoot-borne roots in response to a heterogeneous nitrogen supply is scarce. The present study therefore provides a comprehensive profile of fine-scale plastic respo...
متن کاملSloughing of root cap cells decreases the frictional resistance to maize (Zea mays L.) root growth
Root caps provide a protective layer in front of the meristem that protects the meristem from abrasion by soil particles. The continuous production and sloughing of the root cap cells may be an adaptation to decrease the friction at the soil-root interface by acting as a low-friction lining to the channel formed by the root. Experiments were performed which provide the first direct evidence tha...
متن کاملRoot cap removal increases root penetration resistance in maize (Zea mays L).
The root cap assists the passage of the root through soil by means of its slimy mucilage secretion and by the sloughing of its outer cells. The root penetration resistance of decapped primary roots of maize (Zea mays L. cv. Mephisto) was compared with that of intact roots in loose (dry bulk density 1.0 g cm-3; penetration resistance 0.06 MPa) and compact soil (1.4 g cm-3; penetration resistance...
متن کاملRoot anatomical phenes predict root penetration ability and biomechanical properties in maize (Zea Mays)
The ability of roots to penetrate hard soil is important for crop productivity but specific root phenes contributing to this ability are poorly understood. Root penetrability and biomechanical properties are likely to vary in the root system dependent on anatomical structure. No information is available to date on the influence of root anatomical phenes on root penetrability and biomechanics. R...
متن کاملBrassinolide interacts with auxin and ethylene in the root gravitropic response of maize (Zea mays)
University College, Department of Biology, Yonsei University, Seoul 120-749, Korea, Department of Life Science, Chung-Ang University, Seoul 156–756, Korea Department of Biological Science, Ewha Woman’s University, Seoul 120-750, Korea Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109-1048, USA Department of Biological Science, Andong Natio...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2004
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mch056