Some physiological changes in strawberry (<i>Fragaria</i>×<i>ananassa</i>‘Camarosa’) plants under heat stress

Gülen, Hatice; Eri̇ş, A.

doi:10.1080/14620316.2003.11511715

Cited by 56 publications

(37 citation statements)

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“…The ev i dences show ed that the ac tiv ity of four ba sic isoperoxidases in cas tor bean (Ricinus communis L.) (Bruce and West 1989) and one ba sic isoperoxidase in pear/quince graft com bi na tions (Gulen et al 2002) were cor re lated to lignin de posi tion. In ad di tion a ba sic isoperoxidase band was cor re lated to heat tol er ance in straw berry plants by Gulen and Eris (2003). In the pres ent study, one basic isoperoxidase band (Rf=0.27) was ob served com monly with dif fer ent band in ten sity in all the treat ments (Fig.…”

Section: Discussionmentioning

confidence: 96%

Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress

2006

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1 Uludag Uni ver sity, Fac ulty of Ag ri cul ture, De part ment of Hor ti cul ture, Ab stractEf fects of salt stress on the ac tiv ity of peroxidase (PRX) isozyme and leaf pro teins were stud ied in the three straw berry va ri et ies, Camarosa, Tioga and Chan dler. Plants were wa tered with mod i fied 1/3 Hoagland nu tri ent so lu tion con tain ing 0 (con trol), 8.5, 17.0 and 34.0 mM NaCl for 30 days fallowing 20 days ac cli ma tion. PRX ac tiv ity was as sayed in leaf ex tracts and PRX pro files of con trol and salt treated plants were performed by na tive polyacrylamide gel elec tro pho re sis (PAGE).Dur ing the salt stress Tioga and Camarosa tol er ated the cel lu lar dam age with less elec tro lyte leak age while Chandler ex hib ited a se vere cel lu lar dam age with the high est (87.5 % in 34.0 mM NaCl treat ment) elec tro lyte leak age. To tal sol uble pro tein con tent was de creased by sa lin ity in Tioga (from 11.35 to 5.86 mg·g -1 DW) and Chan dler (from 9.35 to 3.90 mg·g -1 DW) while it was al most un changed in Camarosa. Salt stress in creased to tal and spe cific PRX ac tiv ity as com pared with the con trol in all the va ri et ies. In na tive PAGE, one ba sic isoperoxidase band (Rf=0.27) was ob served com monly with dif fer ent band in ten sity in all the treat ments. There fore, it might be as so ci ated with lig ni fi ca tion and re cov ery of cell mem brane dam age in straw berry plants un der salt stress.

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Section: Discussionmentioning

confidence: 96%

Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress

2006

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“…Sudden, not the gradual, heat stress greatly hampered the leaf relative water content and pressure potential. Plants gradually exposed to heat stress indicated an accumulation of several heat stable proteins, which appeared to be associated with heat tolerance in strawberry (Gulen and Eris 2003). Likewise, preconditioned tomato plants with heat indicated a better osmotic adjustment and maintained leaf water potential than non-preconditioned ones (Morales et al 2003).…”

Section: Introductionmentioning

confidence: 95%

Expression of dehydrins under heat stress and their relationship with water relations of sugarcane leaves

2007

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The heat stress-induced dehydrin proteins (DHNs) expression and their relationship with the water relations of sugarcane (Saccharum officinarum L.) leaves were studied. Sugarcane seedlings were subjected to heat stress (day/night temperature of 40/35 °C) under relative humidity 60/65 % to avoid aerial desiccation and determinations made at 4, 12, 24, 36, 48, 60 and 72 h. The leaves showed a sharp decline in the water and osmotic potentials, and relative water content during first 12 h of heat stress, but a regain in their values in 24 h. The pressure potential (ψ p ) decreased initially but increased later and approached control leaves. The increase in ψ p was tightly correlated to the accumulation of free proline, glycinebetaine and soluble sugars, indicating their possible involvement in the osmotic adjustment under heat stress. Immunological detection revealed the expression of three DHNs with an apparent molecular mass of 21, 23 and 27 kDa under heat stress (48 to 72 h) and their expression was independent of the changes in the water relations of leaves.Additional key words: compatible osmotica, heat shock proteins, osmotic adjustment, relative humidity, water potential.

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“…The leaf discs were then placed in a new dry petri dish with a lid and located in an oven at 70°C for 48 hours. After incubation, the leaf discs were weighed (Gulen and Eris 2003). The RWC and LOT are calculated as follows:…”

Section: Growth Conditions and Salt Treatmentmentioning

confidence: 99%

Physiological, biochemical and mineral dimensions of green beangenotypes depending on Zn priming and salinity

Gulmezoglu

Aydogan

Turhan

2016

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The effects of salinity and zinc (Zn) priming on the physical and mineral composition of green bean genotypes were investigated on two green bean genotypes ('Şeker Fasulye' and 'Local Genotype') by soaking seeds in 0.05% Zn (ZnSO 4 .7H 2 O) solution and by exposing to salt stress by applying 50, 100 and 150 mM NaCl after first true leaf emergence. Plants not exposed to salt stress were treated as control. The effects of Zn priming on the salt tolerance of genotypes, fresh and dry weight of plant leaf relative water content (RWC), loss of turgidity (LOT), Na, K, Ca and Zn concentrations in the leaves, stem and root portions of plants were evaluated. The NaCl concentrations led to significant variations in the examined parameters. The highest concentration of salt (150 mM) caused fading in leaves and led to inhibition of growth and development. Salt application generally reduced the fresh and dry weights of plants of both genotypes where Zn priming showed an amendatory effect. Leaf RWC decreased with salt applications while LOT increased but Zn priming had no amendatory effect on these parameters. 'Şeker Fasulye' genotype was found to be relatively more salt tolerant than 'Local Genotype' on the basis of the investigated parameters. Zinc priming decreased the Na and Ca concentrations in plant organs; however, a decrease in K concentration was observed due to increase in NaCl.

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Some physiological changes in strawberry (Fragaria×ananassa‘Camarosa’) plants under heat stress

Cited by 56 publications

References 0 publications

Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress

Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress

Expression of dehydrins under heat stress and their relationship with water relations of sugarcane leaves

Physiological, biochemical and mineral dimensions of green beangenotypes depending on Zn priming and salinity

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