The response of the xerophytic plant Gypsophila aucheri to salt and drought  stresses: the role of the antioxidant defence system

Esen, Aşkım Hediye Sekmen; Özgür, Rengin; Uzilday, Barış; Tanyolaç, Zehra Özgecan; Dinç, Ahmet

doi:10.3906/bot-1201-5

Cited by 21 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, it was also suggested that SOD activity is correlated with increased oxidative stress [31]. In xerophytic plants SOD activity was also increased under salt and drought stress [17]. The 7-fold increase in Cu/Zn-SOD gene expression in cultivar Solar Yellow suggested its ability to activate its molecular machinery in response to drought stress (Fig.…”

Section: Based On the Ndings Of Biochemical Analyses Of Carrot Cultiv...mentioning

confidence: 93%

Investigation of Drought Induced Biochemical and Gene Expression Changes in Carrot Indicate Cultivar Specific Resilience

Junaid

Gökçe

2022

Preprint

View full text Add to dashboard Cite

Background: Carrot is the most important vegetable in Apiaceae family, and it is consumed globally due to its high nutritional quality. Drought stress is major environmental constraint for vegetables especially carrot. Limited data is available regarding the mechanisms conferring drought tolerance in carrot. Methods and Results: Eight commercial carrot cultivars were used in this study and subjected to drought stress under semi-controlled greenhouse conditions. Biochemical, antioxidant enzymatic activity and changes in transcript level of drought related genes was estimated in comparison to their control plants. Gene expression analysis was done by using qRT-PCR. Results revealed that cultivars Coral Orange, Tendersweet and Solar Yellow were resilient to drought stress, which was supported by their higher transcript levels of catalase gene (CAT), superoxide dismutase genes (Cu/ZN-SOD, Cu/Zn-SDC) in these cultivars. The downregulation of PDH1 gene (Proline dehydrogenase 1) was also observed that was associated with upregulation of proline accumulation in carrot plants. Moreover, results also suggested that PRT genes (Proline transporter genes) played a key role in drought tolerance in carrot cultivars.Conclusions: Among the cultivars studied, Coral Orange showed overall resilience under drought stress conditions, whereas cultivars Cosmic Purple and Eregli Black were sensitive. According to our knowledge, this is the first comparative study on drought resilience in several carrot cultivars. It will provide a background for carrot breeding to understand biochemical and molecular responses of carrot plant to drought stress and mechanisms behind it.

show abstract

Section: Based On the Ndings Of Biochemical Analyses Of Carrot Cultiv...mentioning

confidence: 93%

Investigation of Drought Induced Biochemical and Gene Expression Changes in Carrot Indicate Cultivar Specific Resilience

Junaid

Gökçe

2022

Preprint

View full text Add to dashboard Cite

show abstract

Investigation of drought induced biochemical and gene expression changes in carrot cultivars

Junaid

Gökçe

2022

Mol Biol Rep

View full text Add to dashboard Cite

Reactive oxygen species regulation and antioxidant defence in halophytes

Özgür

Uzilday

Sekmen

et al. 2013

Functional Plant Biol.

276

176

View full text Add to dashboard Cite

Production of reactive oxygen species (ROS), which are a by-product of normal cell metabolism in living organisms, is an inevitable consequence of aerobic life on Earth, and halophytes are no exception to this rule. The accumulation of ROS is elevated under different stress conditions, including salinity, due to a serious imbalance between their production and elimination. These ROS are highly toxic and, in the absence of protective mechanisms, can cause oxidative damage to lipids, proteins and DNA, leading to alterations in the redox state and further damage to the cell. Besides functioning as toxic by-products of stress metabolism, ROS are also important signal transduction molecules in controlling growth, development and responses to stress. Plants control the concentrations of ROS by an array of enzymatic and non-enzymatic antioxidants. Although a relation between enzymatic and non-enzymatic antioxidant defence mechanisms and tolerance to salt stress has been reported, little information is available on ROS-mediated signalling, perception and specificity in different halophytic species. Hence, in this review, we describe recent advances in ROS homeostasis and signalling in response to salt, and discuss current understanding of ROS involvement in stress sensing, stress signalling and regulation of acclimation responses in halophytes. We also highlight the role of genetic, proteomic and metabolic approaches for the successful study of the complex relationship among antioxidants and their functions in halophytes, which would be critical in increasing salt tolerance in crop plants.

show abstract

The response of the xerophytic plant Gypsophila aucheri to salt and drought stresses: the role of the antioxidant defence system

Cited by 21 publications

References 41 publications

Investigation of Drought Induced Biochemical and Gene Expression Changes in Carrot Indicate Cultivar Specific Resilience

Investigation of Drought Induced Biochemical and Gene Expression Changes in Carrot Indicate Cultivar Specific Resilience

Investigation of drought induced biochemical and gene expression changes in carrot cultivars

Reactive oxygen species regulation and antioxidant defence in halophytes

Contact Info

Product

Resources

About