The acute effect of copper on the levels of indole-3-acetic acid and lignin in peanut roots

2001 ◽  
Vol 28 (4) ◽  
pp. 329 ◽  
Author(s):  
Tsai-Chi Li ◽  
Teng-Yung Feng ◽  
Wen-Shaw Chen ◽  
Zin-Huang Liu
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Root Growth ◽  
Arachis Hypogaea ◽  
Lignin Content ◽  
Acute Effect ◽  
Significant Inhibition ◽  
Arachis Hypogaea L ◽  
Effect Of Copper ◽  
Indole 3 Acetic Acid

Cu-treated peanut (Arachis hypogaea L.) seedlings showeda significant inhibition in peanut root growth, and a decrease in endogenousindole-3-acetic acid (IAA) content. The decline of IAA content in Cu-treatedtissue was accompanied by an increase in the activity of cationic peroxidase(POD) isozyme P8.5, which was correlated with an increase in cationic PODtranscripts. Cu might suppress the growth of peanut roots by inducing thesynthesis of the cationic POD isozyme that degrades endogenous IAA. Theincrease in the activity of anionic POD isozyme P3.5 was correlated with therise in lignin content in Cu-treated roots. We suggest that the increase inanionic POD isozyme P3.5 induced by Cu might be responsible for ligninsynthesis in peanut roots, and may also remove excess hydrogen peroxide causedby Cu, thus playing a detoxifying role during Cu treatment.

The peanut gynophore: a developmental and physiological perspective

2003 ◽  
Vol 81 (3) ◽  
pp. 183-190 ◽  
Author(s):  
Edgar Moctezuma
Keyword(s):  
Acetic Acid ◽  
Arachis Hypogaea ◽  
Growth Rates ◽  
Growth And Development ◽  
Plant Hormone ◽  
Physiological Changes ◽  
Light Touch ◽  
Peanut Plant ◽  
Arachis Hypogaea L ◽  
Indole 3 Acetic Acid

The peanut plant (Arachis hypogaea L.) produces flowers aerially, but it is able to "sow" its own seeds as a result of the growth of a specialized organ called the gynophore. The peanut gynophore is sensitive to light, touch, and gravity, and it is capable of transporting the recently fertilized ovules into the soil. For gynophore growth to occur, many physiological changes in plant hormone accumulation and distribution take place throughout its development. The unique characteristics and physiological events occurring during the gynophore's growth and development, such as its growth rates and indole-3-acetic acid redistribution during gravistimulation, will be reviewed. The peanut gynophore illustrates that the study of the odd or unusual can often provide valuable answers about the typical.Key words: Arachis hypogaea, geocarpy, gravitropism, gynophore, indole-3-acetic acid (IAA), peanut.

scholarly journals Hydrogen peroxide is a mediator of indole-3-acetic acid/horseradish peroxidase-induced apoptosis

FEBS Letters ◽  
2006 ◽  
Vol 580 (5) ◽  
pp. 1439-1446 ◽  
Author(s):  
Dong-Seok Kim ◽  
Sang-Eun Jeon ◽  
Yun-Mi Jeong ◽  
So-Young Kim ◽  
Sun-Bang Kwon ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Horseradish Peroxidase ◽  
Induced Apoptosis ◽  
Indole 3 Acetic Acid

Mitigation of arsenate toxicity by indole-3-acetic acid in brinjal roots: Plausible association with endogenous hydrogen peroxide

2020 ◽  
pp. 124336
Author(s):  
Saud Alamri ◽  
Manzer H. Siddiqui ◽  
Bishwajit Kumar Kushwaha ◽  
Vijay Pratap Singh ◽  
Hayssam M. Ali
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Indole 3 Acetic Acid

Characterization of Lesser Cornstalk Borer Injury to the Root-Hypocotyl Region of Peanut Plants1

1990 ◽  
Vol 17 (2) ◽  
pp. 58-61
Author(s):  
T. P. Mack ◽  
L. D. Buckelew ◽  
C. M. Peterson
Keyword(s):  
Root Growth ◽  
Arachis Hypogaea ◽  
Tissue Loss ◽  
Insect Feeding ◽  
Feeding Sites ◽  
Arachis Hypogaea L ◽  
Elasmopalpus Lignosellus ◽  
Lepidoptera Pyralidae ◽  
Significant Injury

Abstract Lesser cornstalk borer, Elasmopalpus lignosellus (Zeller) (Lepidoptera: Pyralidae), larval injury to the root-hypocotyl region of greenhouse-reared ‘Florunner’ peanut, Arachis hypogaea L., plants was investigated by determining the size and distribution of feeding sites. The percent injury to periderm, cortex, phloem, and xylem tissues also was estimated. Tissue loss due to insect feeding was measured for only the most prominent of several wound sites on each stem axis. Percent injury to principal tissues was estimated by planimetric methods. The lesser cornstalk borer caused significant injury to the periderm, cortex, and the phloem on mainstems of peanut plants. Mean percent injury was 31.67% for the periderm and cortex, 16.78% for phloem, and only 0.19% for the xylem. Approximately 91% of all feeding sites occurred on the mainstem or were contiguous with the mainstem and a branch. The frequently of plants with feeding sites declined linearly with increasing number of sites. These data support the hypothesis that root growth declines with increasing larval injury to phloem and xylem (food and water conducting tissues, respectively) in the root-hypocotyl region.

In Vitro Culture of Arachis hypogaea Peg Tips1

1992 ◽  
Vol 19 (2) ◽  
pp. 78-82 ◽  
Author(s):  
Tallury P. S. Rau ◽  
H. T. Stalker ◽  
H. E. Pattee ◽  
P. Reece
Keyword(s):  
Arachis Hypogaea ◽  
Interspecific Hybrid ◽  
Embryo Rescue ◽  
Basal Medium ◽  
Early Growth ◽  
Growth Stages ◽  
Globular Stage ◽  
Arachis Hypogaea L ◽  
Indole 3 Acetic Acid

Abstract Arachis hypogaea L. cv. NC 4 was used as a model plant system in an effort to develop an in vitro embryo rescue protocol which could have application to interspecific hybrid embryos, which often abort at very early growth stages. Embryo growth and development was studied in 1- to 4-day-old peg tips containing proembryos equivalent to a stage where many interspecific hybrid embryos abort. Three independent experiments were conducted to 1) determine the most favorable basal media, 2) evaluate the effects of auxins and cytokinins on growth, and 3) determine a favorable combination of auxins and cytokinins for in vitro peanut embryo growth. The results indicated that MS (Murashige and Skoog) medium with 3% sucrose was the most favorable basal medium among seven media and two sucrose concentrations analyzed. IAA (indole-3-acetic acid) at 1.5 mg L-1 in combination with a range of KN (kinetin) levels from 0.5 to 1.25 mg L-1 were the growth regulator combinations of choice. Proembryo growth reached the multicellular globular stage, but differentiation into heart-shaped embryos did not occur.

Elevated indole-3-acetic acid peroxidase activity is involved in the cadmium-induced hydrogen peroxide production in barley root tip

2010 ◽  
Vol 62 (1) ◽  
pp. 59-64 ◽  
Author(s):  
L’ubica Halušková ◽  
Katarína Valentovičová ◽  
Jana Huttová ◽  
Igor Mistrík ◽  
Ladislav Tamás
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Peroxidase Activity ◽  
Barley Root ◽  
Root Tip ◽  
Hydrogen Peroxide Production ◽  
Indole 3 Acetic Acid ◽  
Barley Root Tip
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