Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings

Zhang, Xiaoqian; Li, Kecheng; Song, Le; Xing, Ronge; Yu, Huahua; Chen, Xiaolin; Li, Pengcheng

doi:10.1016/j.carbpol.2015.11.050

Cited by 55 publications

(49 citation statements)

References 32 publications

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“…Under drought conditions, the hybrid showed lower values for YII, qP, ETR in the stressed treatment (SC), corroborating other studies with sensitive genotypes (Souza et al 2013b;Saglam et al 2014). Ahmad et al (2017), Zou et al (2015), and Zhang et al (2016) suggested in their study with Mentha piperita L. and wheat that chitosan oligomers may play a role as elicitors in light use efficiency, due to the positive modifications of these molecules in chlorophyll fluorescence.…”

Section: Discussionsupporting

confidence: 88%

Action of N-Succinyl and N,O-Dicarboxymethyl Chitosan Derivatives on Chlorophyll Photosynthesis and Fluorescence in Drought-Sensitive Maize

Reis

Magalhães²,

Almeida

et al. 2018

J Plant Growth Regul

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Chitosan induces plant tolerance to various abiotic stresses, including water deficit. However, its use may be limited, due to its constitution and low solubility in water. Thus, chemical modifications were proposed in this study with the objective of potentializing its biological effects in maize plants. The derivatives were semi-synthesized (N-succinyl and N,O-dicarboxymethyl) and, together with chitosan, they were applied, via the leaf, in a drought-sensitive maize hybrid (BRS1030) under pre-flowering water deficit. The water deficit was maintained for 15 days and the analyses were performed at the beginning and end of stress, and also in rehydration. Leaf water potential, gas exchange, chlorophyll fluorescence, and content of chloroplastidic pigments were evaluated. The use of the derivatives modulated photosynthesis parameters, affecting the involved mechanisms, such as stomatal activity, water use efficiency and photosystem II activity. Chlorophyll fluorescence indicated that the antenna complex was damaged by the water deficit condition, with a decrease in the energy flux in the electron transport chain and in the photochemical phase of photosynthesis. However, the spraying of chitosan derivatives induced tolerance to water deficit, suggesting that chitosan derivatives are more bioavailable to plants. Water stress decreases pigment content, but both the application of chitosan and derivatives increased these contents. It is concluded that chitosan derivatives improved the photosynthetic parameters in maize susceptible to drought, inducing tolerance to this stress, and the possible reasons and consequences are discussed.

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Section: Discussionsupporting

confidence: 88%

Action of N-Succinyl and N,O-Dicarboxymethyl Chitosan Derivatives on Chlorophyll Photosynthesis and Fluorescence in Drought-Sensitive Maize

Reis

Magalhães²,

Almeida

et al. 2018

J Plant Growth Regul

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“…The net photosynthetic (Pn) and transpiration rate (Tr) ( Fig. 5A; 5B) were also increased and inconsistent with previous studies (He et al, 2001;Zhang et al, 2010;Li, 2012), this might be due to the difference in periods of shading or could be associated with the plant growth and development characterization in the adzuki bean plants in response to the photoperiod. Endogenous hormones play an important role in regulating the plant development and flowering process under varied photoperiods (Metzger, 1995).…”

contrasting

confidence: 62%

Short-day Photoperiod Effects on Plant Growth, Flower Bud Differentiation, and Yield Formation in Adzuki Bean (Vigna angularis)

Dong¹,

Zhang²,

Zhang³

et al. 2016

IJAB

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Adzuki bean, a typical short-day plant (SDP) has high value of pharmaceutical and health care. This study investigated the SD photoperiod effects on plant morphological traits, physiological parameters, flower bud differentiation characterization and yield formation. For the purpose, a subset of SD photoperiod treatments was set up in a SD sensitive cultivar Tangshanhongxiaodou. The results indicated that the SD photoperiod affected largely the plant growth traits, decreased the duration from flowering to seed-filling stage which can modify the plant dry mass allocations. The SD photoperiod treatments increased the contents of chlorophyll and soluble protein at late growth stages, the net photosynthetic rate (Pn) and transpiration rate (Tr) also increased at the three growth stages. The GA1+3 content reduced and the ABA content increased under SD photoperiod treatments. Under SD photoperiod treatments, the flower bud differentiation processes were promoted. The SD photoperiod treatments reduced the yield components and yield, but not affected significantly the yield components and yield under SD-12 h treatment compared with SD-8 h treatment. Experimental results of present study conclude that SD-12 h treatment can be shortened and without penalty on yield components and yield in North China and similar ecological region, which fit for breeding and cultivation technique practice improvement of adzuki bean.

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“…Some authors reported that a higher water status may favors a greater stomatal conductance causing a CO 2 flow and also a leaf cooling (canopy) by transpiration in plants under water stress. Ahmad et al (2017) and Zhang et al (2016) suggested that oligomers of chitosan can affect the efficiency of light use because these molecules induce positive modifications in chlorophyll fluorescence. Drought-tolerant maize genotypes tend to have higher electron transport rate (ETR), photochemical quenching (qP), and effective photochemical quantum yield of PS II (YII) (Souza et al, 2013b;Saglam et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Leaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction

et al. 2020

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It is a fact that the regions that cultivate the most maize crop do not have fully adequate technologies to measure productivity losses caused by irregularities in water availability. The objective of this study was to evaluate the physiological characteristics of maize hybrids tolerant (DKB 390) and sensitive (BRS 1030) to drought, at V5 growth stage and under water restriction, in order to understand the mechanisms involved in the induction of tolerance to drought by chitosan in contrasting maize genotypes. Plants were cultivated in pots at a greenhouse, and chitosan 100 ppm was applied by leaf spraying. The water restriction was imposed for 10 days and then leaf gaseous exchange and chlorophyll fluorescence were evaluated. The tolerant hybrid (DKB 390) showed higher photosynthesis, stomatal conductance, carboxylation efficiency, electron transport rate, and non-photochemical quenching when chitosan was used. Plants from tolerant genotype treated with chitosan were more tolerant to water stress because there were more responsive to the biopolymer.

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Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings

Cited by 55 publications

References 32 publications

Action of N-Succinyl and N,O-Dicarboxymethyl Chitosan Derivatives on Chlorophyll Photosynthesis and Fluorescence in Drought-Sensitive Maize

Action of N-Succinyl and N,O-Dicarboxymethyl Chitosan Derivatives on Chlorophyll Photosynthesis and Fluorescence in Drought-Sensitive Maize

Short-day Photoperiod Effects on Plant Growth, Flower Bud Differentiation, and Yield Formation in Adzuki Bean (Vigna angularis)

Leaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction

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