+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Physiological conjunction of allelochemicals and desert plants



Physiological conjunction of allelochemicals and desert plants



Plos One 8(12): E81580



Plants exchange signals with other physical and biological entities in their habitat, a form of communication termed allelopathy. The underlying principles of allelopathy and secondary-metabolite production are still poorly understood, especially in desert plants. The coordination and role of secondary metabolites were examined as a cause of allelopathy in plants thriving under arid and semiarid soil conditions. Desert plant species, Origanum dayi, Artemisia sieberi and Artemisia judaica from two different sources (cultivar cuttings and wild seeds) were studied in their natural habitats. Growth rate, relative water content, osmotic potential, photochemical efficiency, volatile composition and vital factors of allelopathy were analyzed at regular intervals along four seasons with winter showing optimum soil water content and summer showing water deficit conditions. A comprehensive analysis of the volatile composition of the leaves, ambient air and soil in the biological niche of the plants under study was carried out to determine the effects of soil water conditions and sample plants on the surrounding flora. Significant morpho-physiological changes were observed across the seasons and along different soil water content. Metabolic analysis showed that water deficit was the key for driving selective metabolomic shifts. A. judaica showed the least metabolic shifts, while A. sieberi showed the highest shifts. All the species exhibited high allelopathic effects; A. judaica displayed relatively higher growth-inhibition effects, while O. dayi showed comparatively higher germination-inhibition effects in germination assays. The current study may help in understanding plant behavior, mechanisms underlying secondary-metabolite production in water deficit conditions and metabolite-physiological interrelationship with allelopathy in desert plants, and can help cull economic benefits from the produced volatiles.

(PDF emailed within 0-6 h: $19.90)

Accession: 055001560

Download citation: RISBibTeXText

PMID: 24339945

DOI: 10.1371/journal.pone.0081580


Related references

Eco physiological studies on desert plants 10. contribution to the aut ecology of the desert chasmophyte stachys aegyptiaca. Oecologia (Berlin) 50(3): 422-426, 1981

Eco-physiological studies on desert plants X. Contribution to the autecology of the desert chasmophyte Stachys aegypticca Pers. Oecologia 50(3): 422-426, 1981

Eco physiological studies on desert plants part 7 water relations of leptadenia pyrotechnica growing in the egyptian desert. Oecologia (Berlin) 10(1): 79-91, 1972

Eco-physiological studies on desert plants. VII. Water relations of Leptadenia pyrotechnica (Forsk.) Decne. growing in the Egyptian Desert. Oecologia 0 (1) 79-91, 1972

Eco-physiological studies on desert plants : VII. Water relations ofLeptadenia pyrotechnica (Forsk.) Decne. growing in the Egyptian Desert. Oecologia 10(1): 79-91, 1972

Eco-physiological studies on Indian desert plants. II. Physiological response to heavy metals in Sorghum vulgare Pers. Transactions of Indian Society of Desert Technology: 59-67, 1988

Eco-physiological studies on desert plants. I. Oecologia 7 (2) 170-183, 1971

Morphological and physiological characteristics of desert plants. US/IBP Synthesis Series (11): 59-74, 1981

Physiological adaptations of plants in desert ecosystems. Central Arid Zone Research Institute, CAZRI Monograph (1): 223-236, 1977

Eco physiological studies of sonoran desert plants. Journal Of The Arizona Academy Of Scienceppl: 18, 1977

Eco-physiological attributes of drought avoidance in desert plants. Advancing frontiers plant sciences 1983: symposium proceedings National Symposium on Advancing Frontiers of Plant Sciences Jodhpur November 26-30-1983 edited by HC Arya et al: 8, 1983

Mycorrhizal status of some desert plants and their physiological significance. Trends in mycorrhizal research Proceedings of the National Conference on Mycorrhiza, held at Haryana Agricultural University, Hisar, India, Feb 14-16, 1990: 160-161, 1990

Desert rodents and desert agriculture: the ecological and physiological relationships of a desert rodent community to native and modified environments. Dissertation Abstr(B): 783-784, 1974

Primary production of lower plants lichens in the desert and its physiological basis. Cooper, J P (Ed ) International Biological Programme, No 3 Photosynthesis And Productivity in Different Environments Congresses Aberystwyth, Wales, April, 1973 Xxiv+715p Illus Cambridge University Press: New York, N Y , U S A ; Cambrdige, England ISBN 0-521-20573-5: 133-143, 1975

Eco-physiological studies on desert plants : I. Autecology of Egyptian Zygophyllum species. Oecologia 7(2): 170-183, 1971