Auxin as Part of the Wounding Response in Plants

2012 ◽  
pp. 115-124 ◽  
Author(s):  
Claudia A. Casalongué ◽  
Diego F. Fiol ◽  
Ramiro París ◽  
Andrea V. Godoy ◽  
Sebastián D‘Ippólito ◽  
...  
Keyword(s):  
Wounding Response

Induction of Germination in Dormant Barnyardgrass (Echinochloa crus-galli) Seeds by Wounding

Weed Science ◽  
1987 ◽  
Vol 35 (6) ◽  
pp. 753-757 ◽  
Author(s):  
Shi-Jean S. Sung ◽  
Gerald R. Leather ◽  
Maynard G. Hale
Keyword(s):  
Ethylene Production ◽  
Mechanical Resistance ◽  
Wounding Response

Various surgical cuts were used to induce germination of dormant barnyardgrass [Echinochloa crus-galli(L.) Beauv. # ECHCG] caryopses. Greater percentages of germination were obtained when the cuts were made closer to the embryo. However, removal of only the caryopsis coat covering the coleoptile or midembryo axis induced up to 10% germination compared to 70% germination for caryopses with the coat covering the radicle removed. Dormancy of barnyardgrass was not caused by the inability of the embryo to imbibe, imposed mechanical resistance of the caryopsis coat, or presence of an inhibitor. A wounding response, other than ethylene production, by the cut caryopses was possibly responsible for stimulating germination. Similar responses to cutting observed in afterripened caryopses were consistent with the suggested hypothesis.

The Wounding Response of Dormant Barnyardgrass (Echinochloa crus-galli) Seeds

Weed Science ◽  
1992 ◽  
Vol 40 (2) ◽  
pp. 200-203 ◽  
Author(s):  
Gerald R. Leather ◽  
Shi-Jean Sung ◽  
Maynard G. Hale
Keyword(s):  
Carbon Dioxide ◽  
Abscisic Acid ◽  
Volatile Compound ◽  
Gradual Increase ◽  
Fourfold Increase ◽  
Twofold Increase ◽  
Wounding Response ◽  
Fivefold Increase

Induction of germination in dormant barnyardgrass seeds by wounding was investigated. Previous research indicated that a volatile compound was emitted during imbibition of wounded caryopses. When wounded caryopses were submerged in agar, total germination and speed of germination were stimulated, and the stimulation was dependent upon the concentration of agar. A twofold increase in germination occurred in 1% agar versus water, and a fivefold increase with caryopses placed in 5% agar. When wounded caryopses were imbibed, there was a fourfold increase in respiration over that of intact caryopses after 1 h. This increased rate of respiration of wounded caryopses continued for 7 h, while there was a gradual increase in respiration of intact caryopses. Carbon dioxide induced intact dormant caryopses to germinate but was not effective in stimulating germination of the seed (spikelet). High levels of abscisic acid found in the hulls of dormant seeds may have prevented the action of carbon dioxide. These results suggest that increased respiration resulting from wounding provides elevated levels of carbon dioxide in the microenvironment of the seed, thus stimulating germination. Removal of the hulls is necessary for germination even in high levels of carbon dioxide.

scholarly journals At ERF #111/ ABR 1 is a transcriptional activator involved in the wounding response

2019 ◽  
Vol 100 (5) ◽  
pp. 969-990 ◽  
Author(s):  
Judith Bäumler ◽  
Willi Riber ◽  
Maria Klecker ◽  
Leon Müller ◽  
Nico Dissmeyer ◽  
...  
Keyword(s):  
Transcriptional Activator ◽  
Wounding Response

INFLUENCE OF PRE-TREATMENTS ON METABOLISM AND WOUNDING RESPONSE OF FRESH CUT POTATOES EVALUATED WITH ISOTHERMAL CALORIMETRY

2005 ◽  
pp. 1833-1838 ◽  
Author(s):  
P. Rocculi ◽  
S. Romani ◽  
M. Dalla Rosa ◽  
F. Gómez ◽  
M. Sjöholm ◽  
...  
Keyword(s):  
Isothermal Calorimetry ◽  
Wounding Response ◽  
Fresh Cut

Observations on the physiological mechanisms and chemical constituents of induced oleoresin synthesis in Pinusresinosa

1984 ◽  
Vol 14 (3) ◽  
pp. 452-458 ◽  
Author(s):  
Karl E. Wolter ◽  
Duane F. Zinkel
Keyword(s):  
Acid Content ◽  
Abietic Acid ◽  
Chemical Constituents ◽  
Fold Increase ◽  
Phloem Transport ◽  
Ethylene Synthesis ◽  
Physiological Mechanisms ◽  
Wounding Response ◽  
Levopimaric Acid ◽  
Stimulation Of

The stimulation of lightwood formation (oleoresin soaking) in Pinusresinosa Ait. treated with the bipyridylium salt, paraquat (1,1′-dimethyl-4,4′-bipyridylium dichloride), affected various physiological parameters. Respiration, transpiration, and ethylene synthesis were markedly increased and were correlated with the increased production of rosin and turpentine. Photosynthesis, however, was severely inhibited, and phloem transport was not necessary for oleoresin deposition. These marked changes in function reflect a typical wounding response. Ethylene (supplied as Ethrel (2-chloroethylphosphonic acid)) was capable of replacing the stimulatory effect of paraquat, with a 14-fold increase in rosin over controls and a 25-fold increase in turpentine. This increase in turpentine content was accomplished by a significant enhancement in β-pinene content. Ethrel-treated trees also showed an increased abietic acid content, with a concomitant decrease in levopimaric acid.

scholarly journals Wounding Response in Relation to Polar Transport of Radiocalcium in Isolated Root Segments of Zea mays

1966 ◽  
Vol 41 (7) ◽  
pp. 1145-1151 ◽  
Author(s):  
Evan C. Evans ◽  
Burton E. Vaughan
Keyword(s):  
Zea Mays ◽  
Polar Transport ◽  
Root Segments ◽  
Wounding Response

Relationship between H2O2 and jasmonic acid in pea leaf wounding response

2008 ◽  
Vol 55 (6) ◽  
pp. 765-775 ◽  
Author(s):  
Y. Liu ◽  
Q. -H. Pan ◽  
H. -R. Yang ◽  
Y. -Y. Liu ◽  
W. -D. Huang
Keyword(s):  
Jasmonic Acid ◽  
Wounding Response

scholarly journals Etanercept decreases the innate immune wounding response in psoriasis

2013 ◽  
Vol 22 (9) ◽  
pp. 599-608 ◽  
Author(s):  
Tissa R. Hata ◽  
Maryam Afshar ◽  
Jeremiah Miller ◽  
Aimee M. Two ◽  
Paul Kotol ◽  
...  
Keyword(s):  
Innate Immune ◽  
Wounding Response
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