Mechanisms of Boron Tolerance and Accumulation in Plants: a Physiological Comparison of the Extremely Boron-Tolerant Plant Species, Puccinellia Distans, with the Moderately Boron-Tolerant Gypsophila Arrostil
Yükleniyor...
Dosyalar
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
AMER CHEMICAL SOC
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The physiological characteristics of the extremely boron (B)tolerant plant species, Puccinellia distans, were compared with those of the moderately tolerant Gypsophila arrostil, two species collected from a B-mining area of Eskisehir, Turkey. Boron was supplied to plants hydroponically at B concentrations ranging from 0.5 to 50 mg B/L for G. arrostil, and from 0.5 to 2000 mg B/L for P. distans. The results show that P. distans has a strikingly greater tolerance to B than G. arrostil. While G. arrostil was unable to survive B supply concentrations greater than 50 mg B/L, P. distans grew at B supply concentrations exceeding 1250 mg B/L. Our research supports the conclusion that from 0.5 to 50 mg B/L, P. distans is better able to restrict the accumulation of B in the whole plant, and the transport of B from root to shoot, than G. arrostil. We propose that P. distans uses several strategies to achieve B tolerance including the ability to restrict the accumulation of B relative to its accumulation of biomass, the ability to restrict the transport of B from root to shoot, and, to a lesser extent, the ability to tolerate high concentrations of B in its shoot and root tissues.
Açıklama
Anahtar Kelimeler
Kaynak
Enviromental Science & Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
44
Sayı
18
Künye
Atalay, E., Bautista, D., Stiles, A. R., Terry, N., Babaoğlu, M., (2010). Mechanisms of Boron Tolerance and Accumulation in Plants: a Physiological Comparison of the Extremely Boron-Tolerant Plant Species, Puccinellia Distans, with the Moderately Boron-Tolerant Gypsophila Arrostil. Enviromental Science & Technology, 44(18), 7089-7095. DOI:10.1021/es1016334
