The remediation of drought stress under VAM inoculation through proline chemical transformation action

Azmat, Rafia; Moin, Shagufta

doi:10.1016/j.jphotobiol.2019.03.002

Cited by 18 publications

(11 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, there was no differential osmotic adjustment due to the spraying of KPhi, NaHS, and ZS in the present study, which was observed in the results of osmotic potential (Ψ S ) ( Figure 1c), with only an effect of the imposed water regimes. The Pro accumulation is one of the strategies used in collaboration with the osmo-protection, and it act as an antioxidant (Azmat;Moin, 2019). Unlike wheat and soybean plants under WD conditions, which showed an increase in Pro due to treatment with ZS (Ma et al, 2017;Batista et al, 2020), KPhi and H 2 S (Batista et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants

et al. 2020

View full text Add to dashboard Cite

Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and the hydrogen sulfide (H2S) donor sodium hydrosulfide (NaHS) would mitigate the deleterious effects of water deficit on sunflower plants by analyzing physiological and biometric characteristics. The experiment was carried out in a greenhouse using a randomized block design with five replications. The treatments were arranged in a 4 x 2 factorial scheme: [Factor A (Alleviators)] - spraying of KPhi (0.5 L ha-1), ZS (3.2 kg ha-1), NaHS (1.2 g ha-1), and water; [Factor B (substrate humidity, SH)] - 100% (well irrigated) and 30% (water deficit, WD) of field capacity. Under WD conditions, alleviators led to the maintenance of higher values of water potential (ΨW), a lower content of leaf malonaldehyde (MDA), and increased activity of the antioxidant enzyme peroxidase (POX), except for ZS. However, leaf osmotic potential, proline concentration, variables related to gas exchange and chlorophyll a fluorescence, and biometric characteristics differed only according to the SH factor. The results of ΨW and MDA for sunflower plants under WD are indicative of the mitigating capacity of ZS, KPhi, and H2S. Thus, the spraying of these compounds on sunflower plants mitigates the effects of WD, acting specifically in physiological processes related to antioxidant responses and in the maintenance of water in leaf tissues.

show abstract

Section: Resultsmentioning

confidence: 99%

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Previous studies verified that the Pro content in AMF plants is much greater than in NM plants under drought conditions [ 79 , 80 ]. Pro can adjust the osmotic potential and redox reactions, thereby affecting energy transfer and preventing the generation of ROS that act as electron donors [ 82 ]. Furthermore, the accumulation of Pro is regarded as an energy supplement [ 83 ], which can provide nutrients to plants under abiotic stress.…”

Section: Discussionmentioning

confidence: 99%

Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently

Xuefeng

Chen

Liao

et al. 2022

Biology

View full text Add to dashboard Cite

Drought stress is one of the greatest obstacles affecting field crop productivity in arid and semi-arid regions, and its severity and frequency are expected to increase due to human-induced changes to the environment and climate. Drought has led to rocky desertification in Karst regions. Cinnamomum migao is a unique, fast-growing medicinal plant of Southwest China that only thrives in Karst regions. Arbuscular mycorrhizal fungi (AMF) symbiosis alleviates drought stress in plants; however, establishment and function of the symbiotic interaction between AMF host plant in relation to the inoculation method remain unclear. Therefore, we conducted an experiment to investigate the effects of AMF species (Glomus etunicatum and Funneliformis mosseae) and two inoculation methods (seed vs. seedling inoculation) under drought stress on C. migao seedlings, and quantified mycorrhizal colonization, AMF spore density, root vigor, relative water content, C. migao growth, antioxidant enzyme activities, and osmotic adjustment. Inoculation with AMF (G. etunicatum and F. mosseae) positively affected the growth and root vigor of Cinnamomum migao under drought stress, regardless of the inoculation method. Additionally, both AMF species markedly upregulated antioxidant enzyme activities and osmotic adjustment substances, regardless of the inoculation method. Our results showed that the collective stimulatory effect of G. etunicatum is more efficient than that of F. mosseae. AMF application could promote afforestation with C. migao to prevent rocky desertification in Karst regions where water is the greatest limiting factor on plant growth and yield.

show abstract

“…This could be verified in this study through the correlation between the increased concentration of Pro and AST with the ᴪ s of the plants (Figure 3E). In addition to acting as an osmolyte, the antioxidant role of Pro stands out as a non‐enzymatic mechanism against ROS in plants under WD (Rivas et al, 2017), converting the OH radical in water (Azmat & Moin, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Plants have several defense mechanisms against stress due to WD, including physiological, metabolic, and anatomical adjustments. An example is the regulation of stomatal opening, providing greater efficiency of the use of water (Jumrani & Bhatia, 2019), in addition to the osmotic adjustment, which allows for the maintenance of cell turgor due to the accumulation of compounds such as proline, glycine‐betaine, and sucrose (Azmat & Moin, 2019; Iqbal et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Can light intensity modulate the physiological, anatomical, and reproductive responses of soybean plants to water deficit?

Almeida

Costa

Batista

et al. 2021

Physiologia Plantarum

View full text Add to dashboard Cite

Little is known about the role of light intensity in modulating plant responses to stress due to water deficit (WD). Thus, the objective of this study was to determine the WD and contrasting irradiance effects on the physiology, anatomy, and grain yield of soybean plants. The experimental design was a randomized block in a growth chamber and a 2 × 2 factorial treatment arrangement: 90% (well-watered, WW) and 40% (WD) of soil field capacities (FC); and 750 (medium irradiance, MI) and 1500 (higher irradiance, HI) μmol (photons) m −2 s −1 irradiance. The WD caused a lower photosynthetic rateas well as observed in the light curve and in the relative parameters, such as apparent quantum efficiency -, less investment in shoot biomass and pollen grain germination, resulting in lower grain yield. However, there was an increase in non-photochemical energy dissipation, a higher concentration of total soluble sugars, proline, and malondialdehyde. The WD + MI-soybean plants developed thicker spongy parenchyma (related to higher mesophilic conductance of CO 2 ). In the WW + HI condition the palisade parenchyma was thicker, conferring maintenance of photosynthetic efficiency. In addition, there was an increase in the activity of superoxide dismutase, catalase, peroxidase, and ascorbate peroxidase antioxidant enzymes in leaves due to HI, regardless of FC. This induced higher energy expenditure, reflected in the reduction of the number of leaf and branches, leaf area, dry mass of leaves and stem in the WW + HI. Interestingly, these strategies of osmotic adjustment, photoprotection, and antioxidant defenses act together in the WD + HI.

show abstract

The remediation of drought stress under VAM inoculation through proline chemical transformation action

Cited by 18 publications

References 35 publications

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants

Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently

Can light intensity modulate the physiological, anatomical, and reproductive responses of soybean plants to water deficit?

Contact Info

Product

Resources

About