Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (Glycine max L.)

Vasconcelos, Marta W.; Grusak, Michael A.

doi:10.1007/s11104-013-1842-6

Cited by 54 publications

(53 citation statements)

References 52 publications

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“…Nitric oxide treatment with or without As III stress enhanced Fe accumulation in the shoots, while As III alone treatment enhanced the Fe accumulation only in the roots but not in the shoots. Fe deficiency results in chlorosis (Vasconcelos and Grusak 2014). In the present study, As III stressed leaves becomes chlorotic, though there was no change in the concentration of Fe in shoots in comparison to control.…”

Section: Accepted Manuscriptcontrasting

confidence: 52%

A protective role for nitric oxide and salicylic acid for arsenite phytotoxicity in rice ( Oryza sativa L.)

Singh

Dixit

Kumar

et al. 2017

Plant Physiology and Biochemistry

133

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Nitric oxide (NO) and salicylic acid (SA) are important signaling molecules in plant system. In the present study both NO and SA showed a protective role against arsenite (As) stress in rice plants when supplied exogenously. The application of NO and SA alleviated the negative impact of As on plant growth. Nitric oxide supplementation to As treated plants greatly decreased arsenic (As) accumulation in the roots as well as shoots/roots translocation factor. Arsenite exposure in plants decreased the endogenous levels of NO and SA. Exogenous supplementation of SA not only enhanced endogenous level of SA but also the level of NO through enhanced nitrate reductase (NR) activity, whether As was present or not. Exogenously supplied NO decreased the NR activity and level of endogenous NO. Arsenic accumulation was positively correlated with the expression level of OsLsi1, a transporter responsible for As uptake. The endogenous level of NO and SA were positively correlated to each other either when As was present or not. This close relationship indicates that NO and SA work in harmony to modulate the signaling response in As stressed plants.

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Section: Accepted Manuscriptcontrasting

confidence: 52%

A protective role for nitric oxide and salicylic acid for arsenite phytotoxicity in rice ( Oryza sativa L.)

Singh

Dixit

Kumar

et al. 2017

Plant Physiology and Biochemistry

133

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“…I ron deficiency is a common abiotic stress that occurs mostly in alkaline soil with high pH and occasionally in soil with a high cation‐exchange capacity (Vasconcelos and Grusak, 2014). Iron deficiency has become a yield‐limiting factor in many agricultural areas, often leading to large areas of Fe chlorosis, growth retardation, yield decrease, or even no harvest (Ivanov et al, 2012; Briat et al, 2015).…”

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confidence: 99%

Physiological Regulation Associated with Differential Tolerance to Iron Deficiency in Soybean

et al. 2018

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Iron deficiency has become a yield‐limiting factor in many agricultural areas. This study was conducted to elucidate the relationship between physiological traits and soybean [Glycine max (L.) Merr.] tolerance in the presence of different FeEDTA concentrations. Two hydroponic experiments using prescreened Fe‐efficient (FeE) and Fe‐inefficient (FeI) soybean genotypes were performed in 2014 and 2015, respectively. Various chlorophyll fluorescence parameters, antioxidant enzyme activities, and the dry weight of the plants were determined and analyzed by canonical correlation analysis, stepwise regression, and logistic equation. The effective quantum yield of photosystem II (PSII) (PhiPSII), maximal photochemical efficiency of PSII (Fv/Fm), superoxide dismutase (SOD), and peroxidase (POD) activity of the FeE genotypes were significantly higher than those of the FeI genotypes (P < 0.05). High catalase (CAT) and POD activities could improve photoprotection and PhiPSII under Fe deficiency. High POD and CAT activities and high Fv/Fm are conducive to increasing the chlorophyll content of E genotypes, and high CAT activity and longer ∆t are also conducive to increasing dry matter accumulation in FeE genotypes under Fe deficiency. In particular, in the presence of 0.02 mM FeEDTA, FeE genotypes exhibit higher PhiPSII, electron transport rate (ETR), and Fv/Fm values as well as higher SOD, POD, and CAT activities than FeI genotypes. Moreover, FeE genotypes show greater dry matter accumulation because of the longest ∆t in the presence of 0.02 mM FeEDTA. Thus, FeE genotypes have stronger tolerance to Fe deficiency because of their higher antioxidant, photochemical, and photoprotection abilities as well as their increased dry matter accumulation resulting from their longer ∆t in the presence of 0.02 mM FeEDTA.

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“…Soybean ( Glycine max ), the most economically significant crop, can provide a considerable source of vegetative protein and edible oil to human beings and animals (Vasconcelos & Grusak, ; Zhang, Song, Cregan, & Jiang, ). As a typical legume, soybean can interact symbiotically with a variety of nitrogen‐fixing soil bacteria known as rhizobia, which can form nodules at the roots of the host and then fix atmospheric nitrogen into ammonia.…”

Section: Introductionmentioning

confidence: 99%

Identification of a gene encoding a sugar transporter as a potential target of a novel LysR‐type transcriptional regulator rluD from rhizobium required for symbiotic nodulation in soybean (Glycine max Merr.)

Chang

Zhu

et al. 2019

Plant Breeding

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Rhizobia can fine‐tune activating key genes involved in background regulation network of nodulation in effective symbiosis processes. Detecting the mechanism of the soybean‐rhizobium interaction plays a pivotal role in aiding the agricultural environment. Here, we report that LysR family transcriptional factor rluD is a novel putative gene that supports symbiosis of broad host‐range strain Sinorhizobium fredii HH103 (S. fredii HH103) during soybean nodulation. The nodule numbers (NN) and nodule dry weight (NDW) of ‘Charleston’ and ‘Dongnong594’ (parents of recombinant inbred line [RIL] population) were reduced after inoculation with S. fredii HH103ΩrluD compared to HH103. To further elucidate the mechanism of rluD in the establishment of symbiosis, unconditional and conditional quantitative trait loci (QTLs) underlying NN and NDW were detected via a high‐generation RILs inoculated with HH103ΩrluD and wild‐type HH103. A major locus of the overlapping region between unconditional and conditional QTLs on Chromosome 6 was identified. The candidate gene Glyma.06g166800 encodes a novel sugar transporter, which might interact with rluD based on qRT‐PCR analysis. This result is valuable for elucidating the mechanism of symbiosis.

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Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (Glycine max L.)

Abstract: Morpho-physiological parameters affecting iron deficiency Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (chlorosis in soybean (Glycine max Glycine max L.) L.

Cited by 54 publications

References 52 publications

A protective role for nitric oxide and salicylic acid for arsenite phytotoxicity in rice ( Oryza sativa L.)

A protective role for nitric oxide and salicylic acid for arsenite phytotoxicity in rice ( Oryza sativa L.)

Physiological Regulation Associated with Differential Tolerance to Iron Deficiency in Soybean

Identification of a gene encoding a sugar transporter as a potential target of a novel LysR‐type transcriptional regulator rluD from rhizobium required for symbiotic nodulation in soybean (Glycine max Merr.)

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