Physiological and biochemical responses and fruit production of noni (Morinda citrifolia L.) plants irrigated with brackish water

Cova, Alide Mitsue Watanabe; Neto, André D. Azevedo; Silva, Petterson Costa Conceição; Menezes, Renata Velasques; Ribas, Rogério Ferreira; Gheyi, Hans Raj

doi:10.1016/j.scienta.2019.108852

Cited by 15 publications

(11 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…µmol g -1 DM) of BRS323 represented, respectively, 0.04 and 0.05% of the carbohydrates content (1,892 and 2,744 µmol g -1 DM), indicating that the contribution of proline to sunflower osmoregulation is negligible when compared to that of carbohydrates. These findings are in agreement with those obtained by other authors (Sacramento et al, 2014;Gheyi, 2019;Cova et al, 2020).…”

Section: Resultssupporting

confidence: 94%

“…The extensive genetic variability in plant species allows developing a good breeding program of new stress-tolerant genotypes (Sakina et al, 2016). Breeding of crops for salt tolerance has been studied for a long time and different methodologies have been used for this purpose based on the physiological responses of plants (Shahzad et al, 2015;Sakina et al, 2016;Cova et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Loss of water from the cells is another recurrent problem for plants cultivated under salinity. To maintain turgor and cell volume under this condition, plants perform the osmotic adjustment, which involves the accumulation of organic solutes of low molecular mass, such as soluble carbohydrates, proline, amino acids, and quaternary ammonium compounds (Cova et al, 2020;van Zelm;Zhang;Testerink, 2020). The accumulation of organic solutes, in addition to osmotic adjustment, also contributes to the protection of macromolecule and membranes from the deleterious effects of salinity Gheyi, 2019).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Selection of sunflower genotypes for salt stress and mechanisms of salt tolerance in contrasting genotypes

et al. 2020

Self Cite

View full text Add to dashboard Cite

Salinity is one of the main limiting factors for crop growth. The metabolic responses to salt stress are variable and depend on species characteristics. This study aimed to select sunflower genotypes tolerant to salt stress and evaluate some mechanisms of salt tolerance in two contrasting (salt-tolerant and salt-sensitive) genotypes. In the first assay, the biomass production and the accumulation of Na+ and K+ in 26 sunflower genotypes were evaluated. Genotypes AG963, AG967, AG972, BRS321, BRS324, H251, H360 and H863 showed lower biomass production and were characterized as salt-sensitive and the genotypes BRS323, Catisol, EXP11-26, EXP44-49, EXP60050, EXP887, HLA860HO and Olisun 5 showed higher biomass production and were considered salt-tolerant. The high K+ content and the low Na+ content in the leaves were the ion traits related to salt tolerance and can be used in sunflower breeding programs for this purpose. In the second assay, the plants of salt-tolerant BRS323 had lower Na+ and Cl- contents and higher levels of K+ than plants of salt-sensitive AG967. A better homeostasis in the mechanisms of transport, distribution and accumulation of inorganic solutes in conjunction with a more efficient osmoregulation mechanism through the synthesis of organic solutes may, at least in part, explain the greater salt-tolerance of BRS323 genotype in comparison to AG967.

show abstract

Section: Resultssupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Selection of sunflower genotypes for salt stress and mechanisms of salt tolerance in contrasting genotypes

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…In contrast, the increase observed at 35 days, in H 2 O 2 -primed plants may be because the chloroplast protein associated with chlorophyll is unexcited, facilitating the process of chlorophyll extraction under salt stress conditions (Liang et al, 2018). Cova et al (2019) and Silva et al (2019) also found that salinity increased the Chl a content in noni (Morinda citrifolia) and basil (Ocimum basilicum) plants, respectively.…”

Section: Discussionmentioning

confidence: 96%

Salt-tolerance induced by leaf spraying with H2O2 in sunflower is related to the ion homeostasis balance and reduction of oxidative damage

Silva

Neto

Gheyi

et al. 2020

Heliyon

Self Cite

View full text Add to dashboard Cite

Salinity is still one of the main factors that limit the growth and production of crops. However, currently, hydrogen peroxide (H 2 O 2) priming has become a promising technique to alleviate the deleterious effects caused by salt. Therefore, this study aimed to test different leaf spraying strategies with H 2 O 2 for acclimation of sunflower plants to salt stress, identifying the main physiological and biochemical changes involved in this process. The experiment was conducted in a completely randomized design, with four replications. Initially, four concentrations of H 2 O 2 were tested (0.1; 1; 10 and 100 mM) associated with different applications: 1AP-one application (48 h before exposure to NaCl); 2AP-two applications (1AP þ one application 7 days after exposure to NaCl) and 3AP-three applications (2AP þ one application 14 days after exposure to NaCl), besides this two reference treatments were also added: control (absence of NaCl and absence of H 2 O 2) and salt control (presence of 100 mM of NaCl and absence of H 2 O 2). The experiment was conducted in hydroponic system containing Furlani's nutrient solution. Salt stress reduced the growth of sunflower plants, however, the H 2 O 2 priming through leaf spraying was able to reduce the deleterious effects caused by salt, especially in the 1 mM H 2 O 2 treatment with one application. H 2 O 2 acts as a metabolic signal assisting in the maintenance of ionic and redox homeostasis, and consequently increasing the tolerance of plants to salt stress.

show abstract

“…The direct effects of high contents of soluble salts on the physiology, growth, and productivity of plants usually include the increase of osmotic stress, which increases water absorption and ion toxicity or the imbalanced accumulation of specific ions, such as Cland Na + , among others (Minhas, Ramos, Ben-Gal, & Pereira, 2020). In this manner, plants subjected to abiotic stress can present photosynthetic inhibition, chloroplast photooxidation, enzyme inactivation, degradation of photosynthetic pigments, and lipidic peroxidation of membranes (Cova et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Physiological changes and growth of soursop plants under irrigation with saline water and H2O2 in post-grafting phase

Veloso¹,

Lima²,

Azevedo³

et al. 2020

Semina: Ciênc. Agrár.

View full text Add to dashboard Cite

The low availability of water associated with high salt concentrations in irrigation water has become one of the leading challenges for agricultural production in the semiarid region of Northeastern Brazil. Thus, the study of strategies to enable the use of saline water in agriculture is essential. From this perspective, this study aimed to evaluate alterations in gas exchange, chloroplast pigments, and cell damage in soursop (Anonna muricata L.) irrigated with saline water and under exogenous application of hydrogen peroxide (H2O2) in the post-grafting phase. A study was conducted in Campina Grande, PB, under greenhouse conditions. The treatments were distributed in a randomized block design, in a 4 × 2 factorial arrangement, consisting of four levels of electrical conductivity of water (ECw; 1.6; 2.4; 3.2 and 4.0 dS m-1) and two concentrations of H2O2 (0 and 20 µM) with four replications. Irrigation water salinity from 1.6 dS m-1 caused changes in the stomatal conductance, respiration, and internal CO2 concentration of soursop plants. A 20 µM concentration of H2O2 reduced the effects of salinity on transpiration and CO2 assimilation values, in addition to promoting the biosynthesis of photosynthetic pigments and reducing cell damage in soursop plants, at 150 days after transplantation. The exogenous application of 20 µM H2O2 reduced the deleterious effects of salinity on the stem diameter of both rootstock and scion in soursop plants irrigated with ECw of 1.6 dS m-1. The exogenous application of 20 µM H2O2 was not efficient in mitigating the damage caused by salinity on the stem diameter of the soursop at grafting point.

show abstract

Physiological and biochemical responses and fruit production of noni (Morinda citrifolia L.) plants irrigated with brackish water

Cited by 15 publications

References 32 publications

Selection of sunflower genotypes for salt stress and mechanisms of salt tolerance in contrasting genotypes

Selection of sunflower genotypes for salt stress and mechanisms of salt tolerance in contrasting genotypes

Salt-tolerance induced by leaf spraying with H2O2 in sunflower is related to the ion homeostasis balance and reduction of oxidative damage

Physiological changes and growth of soursop plants under irrigation with saline water and H2O2 in post-grafting phase

Contact Info

Product

Resources

About