Differential miRNA expression in maize ear subjected to shading tolerance

Lin, Yuan; Tang, Jihua; Liu, Jiayou; Song, Hang; Zhang, Moubiao; Li, Hongping; Chao-hai, LI

doi:10.1007/s11738-016-2094-x

Cited by 6 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Maize (Zea mays L.), a C 4 crop, is the leading grain production cereal in the world, and its growth requires a high sunlight intensity [1]. In many regions in China, maize-growing regions are overcast in their later growth stages [2]. Shading during the whole growing season causes a decrease in the leaf area index, plant height and weights of stalk, cob and grain of maize [3].…”

Section: Introductionmentioning

confidence: 99%

“…Post-silking low light after pollination decreases the volume of grain endosperm transfer cells and results in thin and short cell wall extensions of basal transfer cells, which leads to a decrease in maize grain weight [13]. The expression of microRNAs that regulate hormones, homeostasis, metabolism, development and flowering timing in maize ears is different between ambient light and shading treatments, resulting in the decreased maize yield [2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Post-Silking Shading Stress Affects Leaf Nitrogen Metabolism of Spring Maize in Southern China

Wang

Shi

et al. 2020

Plants

View full text Add to dashboard Cite

Lower sunlight caused by overcast skies from June to July in Southern China is one of the main environmental stresses that frequently occur and affect the post-silking growth and grain development of spring maize. In this study, a field trial involving four maize hybrids as materials was conducted to investigate the effects of post-silking shading stress (30% and 50% light deprivation) on leaf nitrogen metabolism and biomass accumulation during maize growing seasons in 2016 and 2017. Results indicated that 30% and 50% shading stress caused the grain yield to decrease by 47.3% and 69.6%, respectively. Plant post-silking biomass accumulation was decreased by shading, whereas the translocation from pre-silking assimilates in the vegetative organs was increased by shading. This change was sharply observed when the plants were deprived of more sunlight intensity. The leaf relative chlorophyll (soil and plant analyzer development (SPAD) value) and soluble protein contents were considerably decreased by shading under 50% light deprivation condition. The activities of nitrate reductase, glutamine synthetase and glutamate synthase that are involved in nitrogen metabolism were downregulated by shading stresses. In conclusion, nitrogen metabolism was disturbed by shading, which induced the decrease in post-silking dry matter accumulation, ultimately resulting in grain yield loss.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Post-Silking Shading Stress Affects Leaf Nitrogen Metabolism of Spring Maize in Southern China

Wang

Shi

et al. 2020

Plants

View full text Add to dashboard Cite

show abstract

“…Under shading conditions, due to insufficient dry matter supply, root development was significantly hindered, resulting in a decline in root activity and a reduction in nitrogen, phosphorus, and potassium absorption, affecting the growth and development of the plants [20]. The development of female and male panicles and the process of pollination were significantly affected under shading stress, resulting in a significant reduction in grain number [21,22]. The development of grain is regulated by endogenous hormones.…”

Section: Introductionmentioning

confidence: 99%

Shading Stress at Different Grain Filling Stages Affects Dry Matter and Nitrogen Accumulation and Remobilization in Fresh Waxy Maize

Sun

Liang

et al. 2023

Plants

View full text Add to dashboard Cite

Shading stress caused by plum rain season, which overlapped with grain filling process of fresh waxy maize in Southern China, significantly affected crop productivity. In order to investigate the effects of shading at different stages after pollination on the yield, accumulation, and remobilization of dry matter and nitrogen (N) in fresh waxy maize, field experiments were conducted, including shading at 1–7 (Z1), 8–14 (Z2), 15–21 (Z3), and 1–21 (Z4) days after pollination in 2020 and 2021. The results showed that shading reduced the fresh ear and grain yield and increased moisture content in Suyunuo5 (SYN5) and Jingkenuo2000 (JKN2000) compared to natural lighting treatment (CK). The ear yield decrease was more severe in Z4 (43.5%), followed by Z1 (29.7%). Post-silking dry matter and N accumulation and remobilization were decreased under shading stress, and those were lowest in Z4, followed by Z1. The remobilization of pre-silking dry matter and N were increased by shading stress, and the increase was highest in Z4, followed by Z1. The harvest index of dry matter and N was lowest in Z4 and second-lowest in Z1. In conclusion, shading decreased yield by affecting accumulation and remobilization of post-silking dry matter and N, and the impact was more serious when it introduced early during grain filling stage in fresh waxy maize production.

show abstract

“…Shading of maize at different developmental stages not only decreases grain yield, but also affects the normal development of other agronomically important traits, such as reduction in internode length (FOURNIER & ANDRIEU, 2000), reduced Dry matter accumulation (GAO et al, 2017), delays in flowering and silking time (CUI et al, 2014;STRUIK, 1983;WANG et al, 2020), decrease in kernel set in the apical ear region or varying degrees of barrenness (CUI et al, 2014), inhibition of silk elongation (FOURNIER & ANDRIEU, 2000;WANG et al, 2020), increase or decrease in plant height, delay in appearance of new leaves (STRUIK, 1983), and reduction in leaf thickness (WARD & WOOLHOUSE, 2006). Yuan et al identified a number of major quantitative trait loci (YUAN et al, 2012), protein regulatory networks (GAO et al, 2020) and microRNAs (YUAN et al, 2016) that regulate the mechanism of shade tolerance.…”

Section: Introductionmentioning

confidence: 99%

Shade stress on maize seedlings biomass production and photosynthetic traits

et al. 2022

Self Cite

View full text Add to dashboard Cite

The responses of two maize (Zea mays L.) cultivars, ‘LY336’ (shade tolerant) and ‘LC803’ (shade sensitive), to shade stress in a pot experiment conducted in the 2015 and 2016 growing seasons were investigated. The impact of 50% shade stress treatment on shoot biomass, photosynthetic parameters, chlorophyll fluorescence, and malondialdehyde (MDA) content was evaluated. The shoot biomass of the two maize hybrids was decreased significantly by shade stress treatment, for shade stress 7 d, the LC803 and LY336 were reduced by 56.7% and 44.4% compared with natural light. Chlorophyll fluorescence parameters of LY336 were not significantly affected by shade stress, whereas those of LC803 were significantly affected, the Fo increased under shade stress; however Fm, FV/FM and ΦPSII were decreased under shade stress. Among photosynthetic parameters measured, net photosynthetic rate (Pn), stomatal conductance (Gs), and transpiration rate were significantly decreased compared with natural light, LY336 and LC803 reduction by 28.0%, 22.2%, 57.7% and 35.5%, 18.9%, 62.4%; however, intercellular CO2 concentration (Ci) was significantly increased, for the two cultivars. Under shade stress for different durations (1, 3, 5, 7 d), Pn, Gs, Ci, and MDA content differed significantly between the two cultivars. Results indicated that different maize genotypes showed different responses to shading. Shade-tolerant genotypes are only weakly affected by shade stress.

show abstract

Differential miRNA expression in maize ear subjected to shading tolerance

Cited by 6 publications

References 43 publications

Post-Silking Shading Stress Affects Leaf Nitrogen Metabolism of Spring Maize in Southern China

Post-Silking Shading Stress Affects Leaf Nitrogen Metabolism of Spring Maize in Southern China

Shading Stress at Different Grain Filling Stages Affects Dry Matter and Nitrogen Accumulation and Remobilization in Fresh Waxy Maize

Shade stress on maize seedlings biomass production and photosynthetic traits

Contact Info

Product

Resources

About