Physiological and molecular responses of maize (Zea mays L.) plants  to drought and rehydration

Voronin, P. Yu.; Maevskaya, S. N.; Nikolaeva, M. K.

doi:10.32615/ps.2019.101

Cited by 22 publications

(6 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, contents of the soluble protein, soluble sugar, and Pro, as well as the activities of SOD, CAT, and POD, increased under drought stress, decreased rapidly upon rehydration and then increased gradually with the extension of rehydration ( Figure 3 ). These dynamic changes were consistent with the results of previous investigations on corn, cotton, and other crops ( Furlan et al, 2016 ; Voronin et al, 2019 ; Xu et al, 2019 ). Fluctuations in ROS are sensed by receptor proteins NADPH cytochrome P450 reductase (NPR) and heat stress response ( HSF ), redox-sensitive transcription factors, or phosphatases.…”

Section: Discussionsupporting

confidence: 92%

Rehydration Compensation of Winter Wheat Is Mediated by Hormone Metabolism and De-Peroxidative Activities Under Field Conditions

et al. 2022

View full text Add to dashboard Cite

Water deficit and rehydration frequently occur during wheat cultivation. Previous investigations focused on the water deficit and many drought-responsive genes have been identified in winter wheat. However, the hormone-related metabolic responses and de-peroxidative activities associated with rehydration are largely unknown. In this study, leaves of two winter wheat cultivars, “Hengguan35” (HG, drought-tolerant cultivar) and “Shinong086” (SN, drought-sensitive cultivar), were used to investigate water deficit and the post-rehydration process. Rehydration significantly promoted wheat growth and postponed spike development. Quantifications of antioxidant enzymes, osmotic stress-related substances, and phytohormones revealed that rehydration alleviated the peroxidation and osmotic stress caused by water deficit in both cultivars. The wheat cultivar HG showed a better rehydration-compensation phenotype than SN. Phytohormones, including abscisic acid, gibberellin (GA), jasmonic acid (JA), and salicylic acid (SA), were detected using high-performance liquid chromatography and shown to be responsible for the rehydration process. A transcriptome analysis showed that differentially expressed genes related to rehydration were enriched in hormone metabolism- and de-peroxidative stress-related pathways. Suppression of genes associated with abscisic acid signaling transduction were much stronger in HG than in SN upon rehydration treatment. HG also kept a more balanced expression of genes involved in reactive oxygen species pathway than SN. In conclusion, we clarified the hormonal changes and transcriptional profiles of drought-resistant and -sensitive winter wheat cultivars in response to drought and rehydration, and we provided insights into the molecular processes involved in rehydration compensation.

show abstract

Section: Discussionsupporting

confidence: 92%

Rehydration Compensation of Winter Wheat Is Mediated by Hormone Metabolism and De-Peroxidative Activities Under Field Conditions

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In general, plant responses to drought and rehydration vary with stress duration, intensity, plant growth stage, and rehydration rate (Giorio et al, 2018;Hao et al, 2019;Georgieva et al, 2020). Recently, studies on the effects of drought and rehydration on plants have focused on various agricultural and cash crops, e.g., wheat, rice, soybean, and medicinal herbs (Wu et al, 2016;Dong et al, 2019;Voronin et al, 2019;Auler et al, 2021). Arid and mesophytic plants are the major .…”

Section: Introductionmentioning

confidence: 99%

Morphological and physiological changes in Artemisia selengensis under drought and after rehydration recovery

Huang

Cao²,

Xin³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Changes in global climate and precipitation patterns have exacerbated the existing uneven distribution of water, causing many plants to face the alternate situation of drought and water flooding. We studied the growth and physiological response of the wetland plant Artemisia selengensis to drought and rehydration. In this study, Artemisia selengensis seedlings were subjected to 32.89% (SD), 47.36 % (MD), 60.97% (MID), and 87.18 % (CK) field water holding capacity for 70 days, followed by 14 days of rehydration. The results showed that drought inhibited the increase of plant height, basal diameter, and biomass accumulation under SD and MD, but the root shoot ratio (R/S) increased. Drought stress also decreased the content of total chlorophyll (Chl), chlorophyll a (Chl-a), chlorophyll b (Chl-b), and carotenoid (Car). Soluble sugar (SS) and proline (Pro) were accumulated rapidly under drought, and the relative water content (RWC) of leaves was kept at a high level of 80%. After rehydration, the plant height, basal diameter, biomass, and R/S ratio could not be recovered under SD and MD, but these indicators were completely recovered under MID. The RWC, Chl, Chl-a, Chl-b, Car, and osmotic substances were partially or completely recovered. In conclusion, Artemisia selengensis not only can improve drought resistance by increasing the R/S ratio and osmotic substances but also adopt the compensatory mechanism during rehydration. It is predictable that A. selengensis may benefit from possible future aridification of wetlands and expand population distribution.

show abstract

“…Screening for drought tolerance (Figure 2) requires the existence of considerable genetic variability in available germplasms. Many researchers have assessed the drought tolerance of maize by studying photosynthesis, hormone regulation, gene expression, and osmotic regulation [45,46]. Crop resilience refers to the adaptive ability to drought stress at a certain level.…”

Section: Screening Of Drought Tolerance In Maizementioning

confidence: 99%

Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

et al. 2023

View full text Add to dashboard Cite

As a most significant cereal crop, maize provides vital nutritional components to humans and livestock. Drought stress curtails maize growth and yield by impairing several morphological, physiological, and biochemical functions. The rising threats of drought stress significantly affect global food security and increase the ratio of hunger and starvation. The use of molecular breeding techniques has enabled maize researchers to deeply examine the genetic control of drought tolerance and the genetic differences between genotypes to drought stress. Despite the significant progress in molecular genetics, the drought tolerance mechanism is still not fully understood. With the advancements in molecular research, researchers have identified several molecular factors associated with maize tolerance to drought stress. Quantitative trait loci (QTL) mapping and genome-wide association study (GWAS) analysis have led to identifying QTL, and genes linked to drought tolerance in maize that can be further exploited for their possible breeding applications. Transcriptome and transcription factors (TFs) analysis has revealed the documentation of potential genes and protein groups that might be linked to drought tolerance and accelerate the drought breeding program. Genetic engineering has been used to develop transgenic maize cultivars that are resistant to drought stress. Clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) is a new ray of hope to edit the gene of interest to enhance drought tolerance in maize and save both time and cost in cultivar development. In the current review article, we have tried to present an updated picture of the advancements of drought tolerance in maize and its future prospects. These organized pieces of information can assist future researchers in understanding the basis of drought tolerance to adopt a potential breeding tool for breeding drought-tolerant maize cultivars.

show abstract

Physiological and molecular responses of maize (Zea mays L.) plants to drought and rehydration

Cited by 22 publications

References 41 publications

Rehydration Compensation of Winter Wheat Is Mediated by Hormone Metabolism and De-Peroxidative Activities Under Field Conditions

Rehydration Compensation of Winter Wheat Is Mediated by Hormone Metabolism and De-Peroxidative Activities Under Field Conditions

Morphological and physiological changes in Artemisia selengensis under drought and after rehydration recovery

Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

Contact Info

Product

Resources

About