scholarly journals Studies on Root System Formation in Leguminous Crop Plants : 4. Anatomical observation of vascular system and origination of roots in hypocotyl and main root

1968 ◽  
Vol 37 (3) ◽  
pp. 424-429
Author(s):  
Noriyuki TANAKA
Keyword(s):  
Root System ◽  
Vascular System ◽  
Crop Plants ◽  
Main Root ◽  
System Formation ◽  
Leguminous Crop

scholarly journals Studies on Root System Formation in Leguminous Crop Plants : 5. On the root system of peanut plants

1968 ◽  
Vol 37 (4) ◽  
pp. 656-661 ◽  
Author(s):  
Noriyuki TANAKA ◽  
Yoshihiro FUJII ◽  
Masuo SOEJIMA
Keyword(s):  
Root System ◽  
Crop Plants ◽  
System Formation ◽  
Leguminous Crop

scholarly journals Studies on Root System Formation in Leguminous Crop Plants : VI On the growth of hypocotyl roots in summer legumes

1969 ◽  
Vol 38 (3) ◽  
pp. 547-553 ◽  
Author(s):  
Noriyuki TANAKA ◽  
Yoshinori FUJII ◽  
Masuo SOEJIMA
Keyword(s):  
Root System ◽  
Crop Plants ◽  
System Formation ◽  
Leguminous Crop

scholarly journals From one cell to many: Morphogenetic field of lateral root founder cells inArabidopsis thalianais built by gradual recruitment

2020 ◽  
Vol 117 (34) ◽  
pp. 20943-20949 ◽  
Author(s):  
Héctor H. Torres-Martínez ◽  
Paul Hernández-Herrera ◽  
Gabriel Corkidi ◽  
Joseph G. Dubrovsky
Keyword(s):  
Root System ◽  
Lateral Root ◽  
Vascular System ◽  
Time Lapse ◽  
Morphogenetic Field ◽  
Vascular Connection ◽  
System Formation ◽  
Multistep Process ◽  
Pericycle Cells ◽  
Proliferation Potential

The reiterative process of lateral root (LR) formation is widespread and underlies root system formation. However, early LR primordium (LRP) morphogenesis is not fully understood. In this study, we conducted both a clonal analysis and time-lapse experiments to decipher the pattern and sequence of pericycle founder cell (FC) participation in LR formation. Most commonly, LRP initiation starts with the specification of just one FC longitudinally. Clonal and anatomical analyses suggested that a single FC gradually recruits neighboring pericycle cells to become FCs. This conclusion was validated by long-term time-lapse live-imaging experiments. Once the first FC starts to divide, its immediate neighbors, both lengthwise and laterally, are recruited within the hour, after which they recruit their neighboring cells within a few hours. Therefore, LRP initiation is a gradual, multistep process. FC recruitment is auxin-dependent and is abolished by treatment with a polar auxin transport inhibitor. Furthermore, FC recruitment establishes a morphogenetic field where laterally peripheral cells have a lower auxin response, which is associated with a lower proliferation potential, compared to centrally located FCs. The lateral boundaries of the morphogenetic field are determined by phloem-adjacent pericycle cells, which are the last cells to be recruited as FCs. The proliferation potential of these cells is limited, but their recruitment is essential for root system formation, resulting in the formation of a new vascular connection between the nascent and parent root, which is crucial for establishing a continuous and efficient vascular system.

Mechanisms of pathogenesis in Sclerotium bataticola on sunflowers. 1. Production and translocation of a necrosis-inducing toxin

1969 ◽  
Vol 47 (7) ◽  
pp. 1147-1151 ◽  
Author(s):  
Yu-Ho Chan ◽  
W. E. Sackston
Keyword(s):  
Activated Carbon ◽  
Root System ◽  
Vascular System ◽  
Early Symptom ◽  
Vascular Tissues ◽  
Detached Leaves ◽  
Necrotic Spots ◽  
Whole Plants ◽  
Necrotic Spotting

Necrotic spotting of leaves is an early symptom of attack by Sclerotium bataticola on sunflowers. Spots appear after invasion of vascular tissues by the pathogen, which does not spread appreciably from the point of inoculation.Inoculation of one stem of plants split apically to give twin stems on one root system resulted in necrotic spotting of leaves first on the inoculated, and later on the uninoculated stem. Introducing cell-free filtrates of cultures of S. bataticola into sunflower plants or detached leaves resulted in production of the same type of necrotic spots. Introduction of eosin dye, which is translocated in the vascular system, into whole plants and detached leaves produced patterns of coloration similar to the patterns of necrotic spotting. The necrosis may be attributed to a translocatable toxin produced by the fungus.It is indicated that the toxin is neither an enzyme nor a protein. It has not been eluted after adsorption by activated carbon.

scholarly journals Relationship of Seed Sowing Methods and Feeding Regimen With the Development of Cotton Root

2021 ◽  
Vol 9 (12) ◽  
pp. 1189-1192
Author(s):  
Jalilov Lutfiyor Sotvoldievich
Keyword(s):  
Root System ◽  
Rapid Growth ◽  
Early Growth ◽  
Main Root ◽  
Feeding Regime ◽  
Planting Methods ◽  
Cotton Root ◽  
Feeding Regimen ◽  
Relationship Of ◽  
Different Levels

Annotation: According to the obtained 3-year data, changes in planting methods and feeding regime of the "Sultan" variety lead to rapid growth of the root system, early growth of the main root and different levels of (orderly) roots, better absorption activity, 35-38 cm of biomass. Allows to increase by 1.5-1.8 times.

Sign in / Sign up

Export Citation Format

Share Document