Iron plays a critical role in stomatal closure in cauliflower

Sharma, Poonam; Tripathi, Alka; Kumar, Nikhil; Gupta, S. C.; Kumar, Praveen; Chatterjee, J.; Tewari, Rajesh Kumar

doi:10.1016/j.envexpbot.2016.07.001

Cited by 7 publications

(3 citation statements)

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“…Therefore, it is not surprising that iron deficiency causes changes in the structure and function of the entire photosynthetic apparatus of higher plants, leading to disturbances in the stoichiometry of photosystems and their lipid composition, and altering the a and b ratio of chlorophyll [ 29 ]. Fe is also essential for the activity of rubisco [ 28 ] and plays a role in stomatal closure [ 30 , 31 ]. However, the application of iron in ionic and chelated forms presents a number of issues compared to iron in the form of NPs.…”

Section: Introductionmentioning

confidence: 99%

Effects of Iron Oxide Nanoparticles (Fe3O4) on Growth, Photosynthesis, Antioxidant Activity and Distribution of Mineral Elements in Wheat (Triticum aestivum) Plants

Ying

Kreslavski

Шмарев

et al. 2022

Plants

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Engineered nanoparticles (NPs) are considered potential agents for agriculture as fertilizers and growth enhancers. However, their action spectrum differs strongly, depending on the type of NP, its concentrations, and plant species per se, ranging from growth stimulation to toxicity. This work aimed to investigate effects of iron oxide (Fe3O4) NPs on growth, photosynthesis, respiration, antioxidant activity, and leaf mineral content of wheat plants. Wheat seeds were treated with NP for 3 h and plants were grown in the soil at two light intensities, 120 and 300 μmol (photons) m−2·s−1, followed by physiological assessment at several time points. High NP treatment (200 and 500 mg·L−1) enhanced plant growth, photosynthesis and respiration, as well as increasing the content of photosynthetic pigments in leaves. This effect depended on both the light intensity during plant growth and the age of the plants. Regardless of concentration and light intensity, an effect of NPs on the primary photochemical processes was not observed. Seed treatment with NP also led to increased activity of ascorbate peroxidase and reduced malondialdehyde (MDA) content in roots and leaves. Treatment with Fe3O4 also led to noticeable increases in the leaf Fe, P, and K content. It is concluded that iron oxide (Fe3O4)-based NP could enhance plant growth by improving photosynthetic performance and the availability of Fe and P.

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Section: Introductionmentioning

confidence: 99%

Effects of Iron Oxide Nanoparticles (Fe3O4) on Growth, Photosynthesis, Antioxidant Activity and Distribution of Mineral Elements in Wheat (Triticum aestivum) Plants

Ying

Kreslavski

Шмарев

et al. 2022

Plants

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“…The increase in stomatal resistance that led to the decrease in transpiration in the Fe-deficient plants (Table 4) can be attributed to the accumulation of H 2 O 2 in the guard cells leading to stomatal closure mediated by abscisic acid (Bright et al, 2006) or involving a Ca-dependent protein kinase that induces stomatal closure (Zou et al, 2015); this increase in H 2 O 2 contents in Fe-deficient plants could be due to the lesser synthesis of antioxidant enzymes, which generated the accumulation of reactive oxygen species (Sharma et al, 2016). The decrease in transpiration caused by the increment in stomatal resistance in the -Mn plants (Table 4) can be associated with the role of Mn in stomatal movement.…”

Section: Transpiration and Stomatal Resistancementioning

confidence: 99%

Physiological Responses of Purple Passion Fruit (Passiflora Edulis Sims F. Edulis) Plants to Deficiencies of the Macronutrients, Fe, Mn, and Zn during Vegetative Growth

Cárdenas-Pira

Torres-Moya

Magnitskiy

et al. 2021

International Journal of Fruit Science

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The purple passion fruit (Passiflora edulis Sims f. edulis) is a promising crop in Colombia because of its high potential for international markets and high profitability. However, without adequate fertilization, the metabolic processes of plant growth can be affected. The objective of this research was to evaluate the effect of macro-and micronutrient deficiencies on growth, photosynthesis, and transpiration in purple passion fruit plants during vegetative development. Seedlings with four to six leaves (three-months-old) were transplanted to a sand culture and subjected to mineral deficiencies using the missing element technique under greenhouse conditions. The plants subjected to Fe deficiency had the lowest maximum photosynthetic rate at saturation by light (1.72 µmol CO 2 m −2 s −1) at 72 days after treatment, while the lowest apparent quantum efficiency (0.008 µmol CO 2 µmol photons −1) was observed in the plants with Mg deficiency. The lowest values of maximum photochemical efficiency of photosystem II, Fv/Fm (0.69) and transpiration rate (2.39 µg H 2 O cm −2 s −1) were found in the plants with P deficiency. The mineral nutrient deficiencies negatively affected metabolic processes in the purple passion fruit plants, with the highest impact on photosynthesis observed with the Fe or Mg deficiencies. The plants subjected to P deficiencies were the most affected plants in terms of transpiration rate.

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“…The value increased in Garnem, while it decreased in GF 677 under Fe deficiency conditions. Sharma et al (2016) reported that stomatal conductance increase in cauliflower under Fe deficiency. Alternatively Mattiello et al (2015) stated that stomatal conductance decreased under zinc (Zn) deficiency.…”

Section: Physiological Responsesmentioning

confidence: 99%

Stomatal Behaviors and Physiological Responses Affected by Iron Deficiency in Peach Plants Grafted onto Garnem and GF 677

Aras

Keleş

Bozkurt

2021

Tekirdağ Ziraat Fakültesi Dergisi

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Iron (Fe) is a pivotal nutrient taking roles in respiration, photosynthesis and many plant metabolisms. Chlorosis caused by Fe deficiency generally occurs in high pH environments and many fruit trees including peach are known sensitive to iron starvation. Fe starvation declines leaf chlorophyll and carotenoid contents, supresses plant growth and declines photosynthetic capacity. Iron deficiency induces responses in plants and different stomatal behaviors and physiological alterations occur to sustain the increased iron uptake capacity of Fe-deficient plants. In this study, the effects of iron deficiency on stomatal morphology and leaf physiological responses in peach variety Rich May grafted onto Garnem and GF 677 rootstocks were investigated. Plants were exposed to Fe deficient conditions for 3 months. End of the experiment, many leaf and stomatal properties were evaluated. The highest decrease in plant growth (relative growth rates of shoot diameter and length) induced by Fe deficiency was found in Rich May grafted onto Garnem. SPAD and relative anthocyanin decreased by 52 and 70% in Fe deficient Rich May/Garnem grafting combination. Decreases in SPAD and relative anthocyanin values were lower with GF 677. In GF 677, LRWC decreased by 1.8% and membrane permeability increased by 10%. Fe controlled stomatal behaviors in peach plants. Stomatal factors were found more sensitive to Fe deficiency in sensitive rootstock, Garnem. The increment in stomatal and pore areas leaded increase in stomatal conductance. The damage by Fe depletion was found higher in Garnem due to higher loss in SPAD, anthocyanin and increasing membrane permeability. Thus, GF 677 can be used in peach orchards under Fe deficiency conditions.

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Iron plays a critical role in stomatal closure in cauliflower

Cited by 7 publications

References 50 publications

Effects of Iron Oxide Nanoparticles (Fe3O4) on Growth, Photosynthesis, Antioxidant Activity and Distribution of Mineral Elements in Wheat (Triticum aestivum) Plants

Effects of Iron Oxide Nanoparticles (Fe3O4) on Growth, Photosynthesis, Antioxidant Activity and Distribution of Mineral Elements in Wheat (Triticum aestivum) Plants

Physiological Responses of Purple Passion Fruit (Passiflora Edulis Sims F. Edulis) Plants to Deficiencies of the Macronutrients, Fe, Mn, and Zn during Vegetative Growth

Stomatal Behaviors and Physiological Responses Affected by Iron Deficiency in Peach Plants Grafted onto Garnem and GF 677

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