Root apical organization inArabidopsis thaliana ecotype ?WS? and a comment on root cap structure

1996 ◽  
Vol 187 (1) ◽  
pp. 91-95 ◽  
Author(s):  
Thomas L. Rost ◽  
Stuart F. Baum ◽  
Susan Nichol
Keyword(s):  
Root Cap ◽  
Apical Organization

Root apical organization inArabidopsis thaliana 1. Root cap and protoderm

PROTOPLASMA ◽  
1996 ◽  
Vol 192 (3-4) ◽  
pp. 178-188 ◽  
Author(s):  
S. F. Baum ◽  
T. L. Rost
Keyword(s):  
Root Cap ◽  
Apical Organization

Localization of acid phosphatases in root cap of rice plant

1991 ◽  
Vol 49 ◽  
pp. 224-225
Author(s):  
Y. R. Chen ◽  
Y. F. Huang ◽  
W. S. Chen
Keyword(s):  
Rice Plant ◽  
Developmental Stages ◽  
Uranyl Acetate ◽  
Root Cap ◽  
Plant Tissues ◽  
Acid Phosphatases ◽  
Root Tips ◽  
Buffer Solution ◽  
Cacodylate Buffer ◽  
Ethanol Series

Acid phosphatases are widely distributed in different tisssues of various plants. Studies on subcellular localization of acid phosphatases show they might be present in cell wall, plasma lemma, mitochondria, plastid, vacuole and nucleus. However, their localization in rice cell varies with developmental stages of cells and plant tissues. In present study, acid phosphatases occurring in root cap are examined.Sliced root tips of ten-day-old rice(Oryza sativa) seedlings were fixed in 0.1M cacodylate buffer containing 2.5% glutaraldehyde for 2h, washed overnight in same buffer solution, incubated in Gomori's solution at 37° C for 90min, post-fixed in OsO4, dehydrated in ethanol series and finally embeded in Spurr's resin. Sections were doubly stained with uranyl acetate and lead citrate, and observed under Hitachi H-600 at 75 KV.

A Local Auxin Gradient Regulates Root Cap Self-Renewal and Size Homeostasis

2018 ◽  
Author(s):  
Carole Dubreuil ◽  
Xu Jin ◽  
Andreas Grrnlund ◽  
Urs Fischer
Keyword(s):  
Root Cap ◽  
Self Renewal ◽  
Auxin Gradient

Root cap and root growth

Planta ◽  
1972 ◽  
Vol 106 (2) ◽  
pp. 169-171 ◽  
Author(s):  
Paul-Emile Pilet
Keyword(s):  
Root Growth ◽  
Root Cap

Modelling of the root cap of Zea mays L in relation to temperature

1988 ◽  
Vol 108 (3) ◽  
pp. 259-262 ◽  
Author(s):  
F. A. L. CLOWES ◽  
R. WADEKAR
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Root Cap

Preparation of rat epididymal α-l-fucosidase free from other glycosidases: its action on root-cap slime from Zea mays L

1976 ◽  
Vol 47 (1) ◽  
pp. 141-150 ◽  
Author(s):  
Kenneth Wright ◽  
D.H. Northcote ◽  
Robin M. Davey
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Root Cap

Cytological and histochemical characteristics of the axenic root surface of Alnus glutinosa

1986 ◽  
Vol 64 (10) ◽  
pp. 2216-2226 ◽  
Author(s):  
Yves Prin ◽  
Mireille Rougier
Keyword(s):  
Cell Wall ◽  
Root Hair ◽  
Root Hairs ◽  
Root Apex ◽  
Alnus Glutinosa ◽  
Root Surface ◽  
Infection Process ◽  
Root Cap ◽  
A Cell ◽  
Histochemical Tests

The aim of the present study was to investigate the Alnus root surface using seedlings grown axenically. This study has focused on root zones where infection by the symbiotic actinomycete Frankia takes place. The zones examined extend from the root cap to the emerging root hair zone. The root cap ensheaths the Alnus root apex and extends over the root surface as a layer of highly flattened cells closely appressed to the root epidermal cell wall. These cells contain phenolic compounds as demonstrated by various histochemical tests. They are externally bordered by a thin cell wall coated by a thin mucilage layer. The root cap is ruptured when underlying epidermal cells elongate, and cell remnants are still found in the emerging root hair zone. Young emerging root hairs are bordered externally by a cell wall covered by a thin mucilage layer which reacts positively to the tests used for the detection of polysaccharides, glycoproteins, and anionic sites. The characteristics of the Alnus root surface and the biological function of mucilage and phenols present at the root surface are discussed in relation to the infection process.

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