scholarly journals Mutants in Arabidopsis thaliana Altered in Epicuticular Wax and Leaf Morphology

1996 ◽  
Vol 110 (2) ◽  
pp. 377-385 ◽  
Author(s):  
M. A. Jenks ◽  
A. M. Rashotte ◽  
H. A. Tuttle ◽  
K. A. Feldmann
Keyword(s):  
Arabidopsis Thaliana ◽  
Leaf Morphology ◽  
Epicuticular Wax

Insect Egg Deposition Induces Indirect Defense and Epicuticular Wax Changes in Arabidopsis thaliana

2012 ◽  
Vol 38 (7) ◽  
pp. 882-892 ◽  
Author(s):  
Beatrice Blenn ◽  
Michele Bandoly ◽  
Astrid Küffner ◽  
Tobias Otte ◽  
Sven Geiselhardt ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Epicuticular Wax ◽  
Indirect Defense ◽  
Insect Egg ◽  
Egg Deposition

Isolation and characterization of eceriferum (cer) mutants induced by T-DNA insertions in Arabidopsis thaliana

Genome ◽  
1993 ◽  
Vol 36 (3) ◽  
pp. 610-618 ◽  
Author(s):  
John P. McNevin ◽  
Wendy Woodward ◽  
Abdelali Hannoufa ◽  
Kenneth A. Feldmann ◽  
Bertrand Lemieux
Keyword(s):  
Arabidopsis Thaliana ◽  
Length Distribution ◽  
Transformation Method ◽  
Epicuticular Wax ◽  
Primary Alcohols ◽  
Chain Length Distribution ◽  
Isolation And Characterization ◽  
Mutant Phenotypes ◽  
Mutant Lines ◽  
Fatty Aldehydes

Thirteen Arabidopsis thaliana mutants with deviating epicuticular wax layers (i.e., cer mutants) were isolated by screening 13 000 transformed lines produced by the seed transformation method. After crossing the 13 mutants to some of the previously known cer mutant lines, 12 of our mutants mapped to 6 of the 21 known complementation groups (cer1 through cer4 as well as cer6 and cer10), while the other mutant corresponded to a previously unknown locus, cer21. Mutant phenotypes of 6 of the 13 mutant lines were caused by T-DNA insertions within cer genes. We also analyzed the chemical composition of the epicuticular wax layers of the cer mutants isolated in this study relative to that of Arabidopsis wild-type plants. Our results suggest that the five genes we tagged regulate different steps in wax biosynthesis, i.e., the decarbonylation of fatty aldehydes to alkanes, the elongation of hexacosanoic acid to octacosanoic acid, the reduction of fatty aldehydes to primary alcohols and the production of free aldehydes, while an insertion in the fifth gene causes an alteration in the chain length distribution of the different classes of wax compounds.Key words: epicuticular wax, glossy mutants, gas chromotography – mass spectroscopy.

scholarly journals Leaf morphology, wax composition, and residual (cuticular) transpiration of four poplar clones

Trees ◽  
2021 ◽  
Author(s):  
Paul Grünhofer ◽  
Lena Herzig ◽  
Lukas Schreiber
Keyword(s):  
Central Asia ◽  
Leaf Morphology ◽  
Growing Season ◽  
Epicuticular Wax ◽  
Cuticular Wax ◽  
Primary Alcohols ◽  
Hybrid Species ◽  
Cuticular Transpiration ◽  
Ecophysiological Traits ◽  
Poplar Clones

Abstract Key message We identified two poplar clones of the same species as highly comparable, yet clones of two further species of the same genus to be distinctly different regarding multiple morphological and ecophysiological traits. Abstract Leaf morphology, wax composition, and residual (cuticular) transpiration of four poplar clones (two clones of the hybrid species P. × canescens, P. trichocarpa, and P. euphratica) were monitored from the beginning to end of the growing season 2020. A pronounced epicuticular wax coverage was found only with P. euphratica. As the most prominent substance classes of cuticular wax primary alcohols, alkanes and esters were identified with P. × canescens and P. trichocarpa, whereas esters and alkanes were completely lacking in P. euphratica. Wax amounts were slightly decreasing during the season and significantly lower wax amounts were found for newly formed leaves in summer compared to leaves of the same age formed in spring. Residual (cuticular) transpiration was about five to tenfold lower for P. × canescens compared with the two other poplar species. Interestingly, with three of the four investigated species, newly formed leaves in summer had lower wax coverages and lower rates of residual (cuticular) transpiration compared to leaves of exactly the same age formed in spring. Our findings were especially surprising with P. euphratica, representing the only one of the four investigated poplar species naturally growing in very dry and hot climates in Central Asia. Instead of developing very low rates of residual (cuticular) transpiration, it seems to be of major advantage for P. euphratica to develop a pronounced epicuticular wax bloom efficiently reflecting light.

Expression of lavender AGAMOUS-like and SEPALLATA3-like genes promote early flowering and alter leaf morphology in Arabidopsis thaliana

Planta ◽  
2021 ◽  
Vol 254 (3) ◽  
Author(s):  
Ayelign M. Adal ◽  
Elinor Binson ◽  
Lisa Remedios ◽  
Soheil S. Mahmoud
Keyword(s):  
Arabidopsis Thaliana ◽  
Leaf Morphology ◽  
Early Flowering

The role of phytochrome C in gravitropism and phototropism in Arabidopsis thaliana

2008 ◽  
Vol 35 (4) ◽  
pp. 298 ◽  
Author(s):  
Prem Kumar ◽  
Crystal E. Montgomery ◽  
John Z. Kiss
Keyword(s):  
Arabidopsis Thaliana ◽  
Blue Light ◽  
Leaf Morphology ◽  
Red Light ◽  
Phytochrome A ◽  
Inflorescence Stems ◽  
Root Gravitropism ◽  
Positive Effect ◽  
Rosette Leaf

The phytochrome (phy) photoreceptors, which consist of a small gene family PHYA-E in dicot plants, play important roles in regulating many light-induced responses in plants. Although the best characterised phytochromes are phytochrome A (phyA) and phytochrome (phyB), the functions of phyD and phyE have been increasingly studied. Phytochrome C (phy C) has been the most poorly understood member of the photoreceptor family, since isolation of phyC mutants only has been accomplished within the last few years. Recent reports show that phyC functions in hypocotyl elongation, rosette leaf morphology, and timing of flowering. In the present study, we show that phyC plays a role in tropisms in seedlings and inflorescence stems of light-grown Arabidopsis thaliana (L.) Heynh. (Wassilewskija ecotype). Phytochrome C has a positive effect on gravitropism in hypocotyls and stems, but it has a limited role in root gravitropism. In contrast, phyC attenuates the positive phototropic response to blue light in hypocotyls and the red-light-based positive phototropism in roots. Phytochrome D (phy D) also mediates gravitropism in hypocotyls and inflorescence stems and attenuates positive phototropism in response to blue in hypocotyls and stems. Thus, phyC can be added to the list of the other four phytochromes, which play various roles in both gravitropism and phototropism in plant organs. This report also supports the growing body of evidence demonstrating cross talk between phytochromes and blue-light photoreceptors.

Epicuticular wax variation in ecotypes of Arabidopsis thaliana

1997 ◽  
Vol 45 (2) ◽  
pp. 251-255 ◽  
Author(s):  
Aaron M. Rashotte ◽  
Matthew A. Jenks ◽  
Thanh D. Nguyen ◽  
Kenneth A. Feldmann
Keyword(s):  
Arabidopsis Thaliana ◽  
Epicuticular Wax
Sign in / Sign up

Export Citation Format

Share Document