Effect of Water Stress on Growth and Essential Oil Metabolism inCymbopogon martinii(Palmarosa) Cultivars

Autor:	Shabih Fatima, S. R. Ansari, A. H. Abad Farooqi, Srikant Sharma
Rok vydání:	1999
Předmět:	fungi food and beverages General Chemistry Biology biology.organism_classification law.invention chemistry.chemical_compound chemistry Agronomy law Poaceae Proline Cultivar Phosphoenolpyruvate carboxylase Water content Cymbopogon martinii Geraniol Essential oil
Zdroj:	Journal of Essential Oil Research. 11:491-496
ISSN:	2163-8152 1041-2905
DOI:	10.1080/10412905.1999.9701193
Popis:	Whole plants and detached leaves of Cymbopogon martinii cultivars were exposed to water stress for growth and essential oil metabolism studies. The cultivars differed considerably in their response to stress. Plant growth, oil yield, relative water content and water potential decreased while PEP carboxylase activity (PEPC; EC 4.1.1.31) increased in cultivars ‘Tripta,’ Trishna' and ‘PRC1’ grown for 120 days under stress. Similarly in excised leaves of cultivars RRL(B)-77, RRL(B)-69, IW-31245E and RRL(B)-77E water potential and relative water content decreased while proline level increased due to water stress. PEP carboxylase activity was enhanced in all the cultivars except in RRL(B)-69. On inducing water stress in plants or in detached leaves, level of essential oil and geraniol decreased, increased or showed no change in the different genotypes.
Databáze:	OpenAIRE
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