Plant response to drought stress simulated by ABA application: Changes in chemical composition of cuticular waxes

2013 ◽  
Vol 86 ◽  
pp. 70-75 ◽  
Author(s):  
Jana Macková ◽  
Martina Vašková ◽  
Petr Macek ◽  
Marie Hronková ◽  
Lukas Schreiber ◽  
...  
Keyword(s):  
Drought Stress ◽  
Chemical Composition ◽  
Plant Response ◽  
Cuticular Waxes

scholarly journals Chemical composition and antimicrobial activities of essential oils of Ruta graveolens plants treated with salicylic acid under drought stress conditions

2018 ◽  
Vol 4 (2) ◽  
pp. 254-264 ◽  
Author(s):  
Eman Zekry Attia ◽  
Rehab Mahmoud Abd El-Baky ◽  
Samar Yehia Desoukey ◽  
Mahmoud Abd El Hakeem Mohamed ◽  
Mokhtar Mohamed Bishr ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Activities ◽  
Stress Conditions ◽  
Ruta Graveolens

scholarly journals The Response of Soybean (glycine max (l.) Meer.) Varieties from the Tropical Region to Five Watering Regimes under a Controlled Environment

2018 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Stomatal Conductance ◽  
Water Supply ◽  
Dry Season ◽  
Plant Response ◽  
Tropical Region ◽  
Transpiration Efficiency ◽  
Wide Range ◽  
Glycine Max L

In some rice dominated tropical regions, such as in Indonesia, soybeans are an increasingly important dry season crop which are often exposed to periods of drought stress. The morphological and physiological responses, which could lead to some tolerance to water stress, may vary between varieties. By better understanding the plant response to drought stress and finding if these responses vary between varieties better dry season production could be achieved. An experiment was conducted to compare the response of four varieties of soybean (glycine max (l.) Meer.) to five watering regimes, with the objective of determining the response of common soybean varieies across a wide range of water supply. Plant response to water supply was measured using gas exchange measurement with the rate of photo synthesis decreasing progressively from well watered to dry conditions across the four varieties. A correlation of stomatal conductance and transpiration rate has a close relationship with photosynthetic rate, where stomatal conductance of Burangrang variety has higher value than other varieties. Varieties Burangrang and Argomulyo stomatal conductances are higher value than those of Anjasmoro and Grobogan varieties. In a deficit of water condition, the Argomulyo varieties have a higher value of transpiration efficiency and significantly different than the other three varieties. The transpiration efficiency significantly declined for treatments watered once every two or three weeks. The transpiration efficiency values of Agromulyo and Burangrang varieties were significantly higher than another varieties.

Comparative study on epicuticular leaf waxes of Araucaria araucana, Agathis robusta and Wollemia nobilis (Araucariaceae)

2008 ◽  
Vol 56 (8) ◽  
pp. 644 ◽  
Author(s):  
Simona Dragota ◽  
Markus Riederer
Keyword(s):  
Chemical Composition ◽  
Comparative Study ◽  
Chemical Compositions ◽  
Cuticular Waxes ◽  
Leaf Waxes ◽  
Leaf Surfaces ◽  
Epicuticular Wax Crystals ◽  
Araucaria Araucana ◽  
Main Components ◽  
Wax Crystals

The present study describes fine structure and chemical composition of the epicuticular leaf waxes of three Araucariaceae species. The leaf surfaces of samples from greenhouse-grown juvenile trees of Araucaria araucana K.Koch and Agathis robusta F.Muell. were investigated by scanning electron microscopy (SEM) and compared with data for a young greenhouse-grown Wollemia nobilis W.G.Jones, K.D.Hill & J.M.Allen cutting characterised earlier. The chemical compositions of the epicuticular waxes selectively removed from the adaxial and abaxial leaf surfaces of A. araucana, A. robusta and W. nobilis were studied by gas chromatography combined with mass spectroscopy (GC–MS). The main components of the leaf cuticular waxes of A. araucana, A. robusta and W. nobilis are members of the following three major compound classes: n-alkanes, secondary alcohols and alkane diols. It was shown earlier that the latter two classes contribute to the formation of the tubular epicuticular-wax crystals on the leaf surfaces. The present comparative study also revealed differences in the crystalline microstructure and chemical composition of the epicuticular leaf waxes among the three species.

Cuticular waxes—A shield of barley mutant in CBP20 (Cap-Binding Protein 20) gene when struggling with drought stress

Plant Science ◽  
2020 ◽  
Vol 300 ◽  
pp. 110593
Author(s):  
Agata Daszkowska-Golec ◽  
Jagna Karcz ◽  
Tomasz Plociniczak ◽  
Krzysztof Sitko ◽  
Iwona Szarejko
Keyword(s):  
Drought Stress ◽  
Binding Protein ◽  
Cuticular Waxes ◽  
Barley Mutant

scholarly journals The Arabidopsis paralogs, PUB46 and PUB48, encoding U-box E3 ubiquitin ligases, are essential for plant response to drought stress

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Guy Adler ◽  
Zvia Konrad ◽  
Lyad Zamir ◽  
Amit Kumar Mishra ◽  
Dina Raveh ◽  
...  
Keyword(s):  
Drought Stress ◽  
Ubiquitin Ligases ◽  
Plant Response ◽  
E3 Ubiquitin Ligases

Elevated CO2and drought stress effects on the chemical composition of maize plants, their ruminal fermentation and microbial diversityin vitro

2012 ◽  
Vol 66 (6) ◽  
pp. 473-489 ◽  
Author(s):  
Birgit Meibaum ◽  
Susanne Riede ◽  
Bernd Schröder ◽  
Remy Manderscheid ◽  
Hans-Joachim Weigel ◽  
...  
Keyword(s):  
Drought Stress ◽  
Chemical Composition ◽  
Ruminal Fermentation ◽  
Stress Effects ◽  
Maize Plants

Cuticular Waxes and Flavonol Aglycones of Mistletoes

2003 ◽  
Vol 58 (7-8) ◽  
pp. 464-470 ◽  
Author(s):  
Klaus Haas ◽  
Markus Bauer ◽  
Eckhard Wollenweber
Keyword(s):  
Chemical Composition ◽  
Viscum Album ◽  
Quantitative Composition ◽  
Minor Components ◽  
Cuticular Waxes ◽  
Male And Female ◽  
Flavonoid Aglycones ◽  
Small Areas ◽  
Methyl Derivatives ◽  
Long Chain

Abstract Cuticular waxes of Viscum album subspecies and of V. cruciatum have been examined for their micromorphology and chemical composition. Wax crystalloids occur preferably as irregular platelets and rodlets, while deviant structures are found in small areas. Among the triterpenoids forming the wax layer, oleanolic acid is prevailing with some 80%. The quantitative composition of the long-chain aliphatics, which comprise several classes, is rather variable. Flavonoid aglycones, occurring as very minor components of the cuticular waxes, comprise the flavonols kaempferol and quercetin and a series of their methyl derivatives, in some taxa also the flavanone naringenin. Neither the crystalloid structures nor the chemical composition of the wax allow to discriminate the 2 species, or male and female plants, or plants grown on conifers or on dicotyledoneous hosts.

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