Photosynthesis, cellulose contents and ultrastructure changes of mutant rice leading to screw flag leaf

Alamin, Md.; Zeng, Dongdong; Sultana, Most. Humaira; Qin, Ran; Jin, Xiaogang; Shi, Chao

doi:10.1007/s10725-018-0369-5

Cited by 11 publications

(5 citation statements)

References 59 publications

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“…Previous studies demonstrated that photosynthesis parameters were reduced by WL in many crops, such as rice (Winkel et al 2014, Anandan et al 2015, wheat (Shao et al 2013), maize , and pigeon pea (Bansal and Srivastava 2015). The factors affecting the photosynthetic rate are mainly divided into two types: stomatal and nonstomatal inhibition (Alamin et al 2018). Firstly, CO2 deficiency is the rate-limiting factor for photosynthesis because of stomatal closure (Anandan et al 2015, Alamin et al 2018.…”

Section: Introductionmentioning

confidence: 99%

“…The factors affecting the photosynthetic rate are mainly divided into two types: stomatal and nonstomatal inhibition (Alamin et al 2018). Firstly, CO2 deficiency is the rate-limiting factor for photosynthesis because of stomatal closure (Anandan et al 2015, Alamin et al 2018. Additionally, long-term WL results in a severe damage to chloroplast structure and function, representing a nonstomatal component.…”

Section: Introductionmentioning

confidence: 99%

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Differential response of growth and photosynthesis in diverse cotton genotypes under hypoxia stress

Pan¹,

Jiang²,

Wang³

et al. 2019

Photosynt.

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The objectives of the present study were to compare the dynamic of the growth and photosynthetic characteristics of cotton varieties contrasting in waterlogging (WL) tolerance when subjected to hypoxia stress. The growth of the WL-sensitive genotypes was notably inhibited by WL, mainly as a result of a significant reduction in the net photosynthesis (PN) after two days of hypoxia treatment; in the tolerant varieties, no significant changes in PN were observed until 8 d after hypoxia onset. The intercellular CO2 concentration and maximal photochemical efficiency of PSII significantly declined, and the nonphotochemical quenching increased in the sensitive varieties. Infrared thermography showed that a low stomatal conductance resulted in an increased leaf temperature under hypoxia stress. Spectral image analysis suggested that the pigment content and water content rapidly decreased in the leaves of the sensitive varieties. It is concluded that maintaining stomatal opening through the interaction of ethylene and abscisic acid may be an important strategy to improve waterlogging tolerance in cotton.Additional key words: chlorophyll fluorescence; Gossypium hirsutum; hyperspectral image; infrared thermal image. Abbreviations: Ci -intercellular CO2 concentration; E -transpiration rate; Fv/Fm -optimal/maximal quantum yield of PSII; gs -stomatal conductance; NDWI -normalized difference water index; NPQ -nonphotochemical quenching coefficient; PN -net photosynthetic rate; PSSRa -pigment ratio index a; qp -photochemical quenching coefficient. Acknowledgement: We appreciate the contribution of C. Li and Y.W. Nong on experimental execution. We thank to The National Natural Science Fund (No. 31471496) for financial support.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential response of growth and photosynthesis in diverse cotton genotypes under hypoxia stress

Pan¹,

Jiang²,

Wang³

et al. 2019

Photosynt.

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“…In Arabidopsis and tomato leaves, the process of leaf flattening depends on the arrangement of CMTs parallel to the adaxial–abaxial axis of the leaf in the direction of maximum stress [ 36 ]. Changes in cellulose content and cell walls can affect rice leaf flattening [ 37 ]. Here, we found more vascular bundles in cwm with the paraffin section observation ( Figure 2 ).…”

Section: Discussionmentioning

confidence: 99%

BrCWM Mutation Disrupted Leaf Flattening in Chinese Cabbage (Brassica rapa L. ssp. pekinensis)

Yue

Zou

et al. 2023

IJMS

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Leaf flattening plays a vital role in the establishment of plant architecture, which is closely related to plant photosynthesis and, thus, influences the product yield and quality of Chinese cabbage. In this study, we used the doubled haploid line ‘FT’ of Chinese cabbage as the wild type for ethyl methanesulfonate (EMS) mutagenesis and obtained a mutant cwm with stably inherited compact and wrinkled leaves. Genetic analysis revealed that the mutated trait was controlled by a single recessive nuclear gene, Brcwm. Brcwm was preliminarily mapped to chromosome A07 based on bulked segregant RNA sequencing (BSR-seq) and fine-mapped to a 205.66 kb region containing 39 genes between Indel12 and Indel21 using SSR and Indel analysis. According to the whole-genome re-sequencing results, we found that there was only one nonsynonymous single nucleotide polymorphism (SNP) (C to T) within the target interval on exon 4 of BraA07g021970.3C, which resulted in a proline to serine amino acid substitution. The mutated trait co-segregated with the SNP. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) revealed that BraA07g021970.3C expression was dramatically higher in ‘FT’ leaves than that in cwm leaves. BraA07g021970.3C is homologous to AT3G55000 encoding a protein related to cortical microtubule organization. A similar phenotype of dwarfism and wrinkled leaves was observed in the recessive homozygous mutant cwm-f1 of AT3G55000, and its T3 transgenic lines were restored to the Arabidopsis wild-type phenotype through ectopic overexpression of BraA07g021970.3C. These results verified that BraA07g021970.3C was the target gene essential for leaf flattening in Chinese cabbage.

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“…The determination of the Chl a and Chl b contents, and carotenoid contents, were determined as reported earlier [17]. The pigment contents were determined in mg g -1 fresh weight (WF).…”

Section: Measurement Of Chlorophyll Contentmentioning

confidence: 99%

Comparative Physiological, Biochemical, and Proteomic Responses of Photooxidation-Prone Rice Mutant 812HS under High Light Conditions

et al. 2021

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Photosynthetic efficiency decreases as light energy surpasses the photosynthesis capacity. This study was designed to investigate the potential effects of high-intensity light on the photooxidation-prone mutant 812HS of rice and its wild-type 812S during yellow and recovering stages. Results showed that in the yellowing stage, light oxidation occurs due to the exposure of mutant 812HS leaves to the high sunlight, which causes yellowing of the leaves, leading to a reduction in the photochemical activities, physiological mechanisms, and protein contents in mutant 812HS. In the recovery stage, mutant 812HS leaves were exposed to the maximum high brightness, the mutant’s leaves were draped with a dark cover to decrease the exposure of leaves of the plants from direct sunlight, which leads to the restoration of the green color again to the mutant 812HS leaves, leading to improving the performance of the photochemical activities, physiological mechanisms, and protein contents in mutant 812HS. Exposing leaves of mutant 812HS to high light at the yellow stage also resulted in a decrease in the net photosynthetic rate (Pn) in carotenoids content and chlorophyll a and b. Similarly, chlorophyll fluorescence of mutant 812HS decreased in (O-I-J-I-P) curves, and the ATP content, Mg2+-ATPase, and Ca2+-ATPase activities also decreased. An increase in energy dissipation was observed, while ABS/RC, DI0/RC, and TR0/RC values in mutant 812HS at the yellow stage increased. During photooxidation, an increase in O2•– and H2O2 contents was observed in mutant 812HS. While O2•– and H2O2 contents were decreased in mutant 812HS at the recovery stage. The rate of thylakoid membrane protein content was significantly decreased in mutant 812HS at the yellow stage, while at the recovery stage, there was no significant decrease. Our findings showed that photooxidation prompted oxidative damages and lipid peroxidation that caused severe damages to the membranes of the cell, photosynthetic pigments degradation, protein levels, and photosynthesis inhibition in mutant 812HS.

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Photosynthesis, cellulose contents and ultrastructure changes of mutant rice leading to screw flag leaf

Cited by 11 publications

References 59 publications

Differential response of growth and photosynthesis in diverse cotton genotypes under hypoxia stress

Differential response of growth and photosynthesis in diverse cotton genotypes under hypoxia stress

BrCWM Mutation Disrupted Leaf Flattening in Chinese Cabbage (Brassica rapa L. ssp. pekinensis)

Comparative Physiological, Biochemical, and Proteomic Responses of Photooxidation-Prone Rice Mutant 812HS under High Light Conditions

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