Boron and calcium deficiency disturbing the growth of trifoliate rootstock seedlings (Poncirus trifoliate L.) by changing root architecture and cell wall

Liu, Yalin; Riaz, Muhammad; Yan, Lei; Zhou, Yu; Jiang, Cuncang

doi:10.1016/j.plaphy.2019.10.007

Cited by 33 publications

(21 citation statements)

References 53 publications

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“…1 ). Both B and Ca play roles in plant cell wall synthesis, and deficiencies are associated with poor plant health ( 24 – 26 ). It is important to note that the trees in the field, including those in the acidified soils, did not show any observable symptoms of phytotoxicity or nutrient deficiency.…”

Section: Discussionmentioning

confidence: 99%

What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

et al. 2021

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Section: Discussionmentioning

confidence: 99%

What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

et al. 2021

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“…In contrast, the levels of B and Ca were reduced in root tissues (Figure 1). B and Ca both play roles in plant cell wall synthesis, and deficiencies are associated with poor plant health (53–55). It is important to note that the trees in the field, including those in the acidified soils, did not show any observable symptoms of phytotoxicity or nutrient deficiency.…”

Section: Discussionmentioning

confidence: 99%

What’s under the Christmas tree? Soil acidification alters fir tree rhizosphere bacterial and eukaryotic communities, their interactions, and functional traits

Steven

Reau

Taerum

et al. 2021

Preprint

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pH has been identified as a master regulator of the soil environment, controlling the solubility and availability of nutrients. As such, soil pH exerts a strong influence on indigenous microbial communities. In this study we describe a soil acidification experiment and the resulting effects on the rhizosphere communities of fir trees on a Christmas tree plantation. The acidification treatment reduced the pH of bulk soil by ~1.4 pH units and was associated with reduced Ca, Mg, and organic matter content. Similarly, root chemistry differed due to soil acidification with roots in acidified soils showing significantly higher Al, Mn, and Zn content and reduced levels of B and Ca. 16S rRNA and 18S rRNA gene sequencing was pursued to characterize the bacterial/archaeal and eukaryotic communities in the rhizosphere soils. The acidification treatment induced dramatic and significant changes in the microbial populations, with thousands of 16S RNA gene sequence variants and hundreds of 18S rRNA gene variants being significantly different in relative abundance between the treatments. Additionally, co-occurrence networks showed that bacterial and eukaryotic interactions, network topology, and hub taxa were significantly different when constructed from the control and acidified soil rRNA gene amplicon libraries. Finally, metagenome sequencing showed that the taxonomic shifts in the community resulted in alterations to the functional traits of the dominant community members. Several biochemical pathways related to sulfur and nitrogen cycling distinguished the metagenomes generated from the control and acidified soils, demonstrating the myriad of effects soils acidification induces to rhizosphere microbes.

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“…The periods with the highest and lowest cellulose content at three different development stages of elephant grass stems were selected as samples, then cut the fresh stalks into 1cm×1cm pieces and placed in 2.5% glutaraldehyde phosphate buffer (0.1mol/L, pH=7.0). Samples were treated as reported [33] and observed under EM-420 transmission electron microscope (Philips Electronics, Holland).…”

Section: Cell Wall Morphology Observationmentioning

confidence: 99%

Tissue-Specific Transcriptome Analysis Reveals Lignocellulose Synthesis Regulation in Elephant Grass (Pennisetum purpureum Schum.)

Zhang

et al. 2020

Preprint

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Background: The characteristics of elephant grass, especially its stem lignocellulose, are of great significance for its quality as feed or other industrial raw materials. However, the research on lignocellulose biosynthesis pathway and key genes is limited because the genome of elephant grass has not been deciphered.Results: In this study, RNA sequencing (RNA-seq) combined with lignocellulose content analysis and cell wall morphology observation using elephant grass stems from different development stages as materials were applied to reveal the genes that regulate the synthesis of cellulose and lignin. A total of 3852 differentially expressed genes (DEGs) were identified in three periods of T1, T2, and T3 through RNA-seq analysis. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of all DEGs showed that the two most abundant metabolic pathways were phenylpropane metabolism, starch and sucrose metabolism, which were closely related to cell wall development, hemicellulose, lignin and cellulose synthesis. Through weighted gene co-expression network analysis (WGCNA) of DEGs, a ‘blue’ module highly associated with cellulose synthesis and a ‘turquoise’ module highly correlated with lignin synthesis were exhibited. A total of 43 candidate genes were screened, of which 17 had function annotations in other species. Besides, by analyzing the content of lignocellulose in the stem tissues of elephant grass at different developmental stages and the expression levels of genes such as CesA, PAL, CAD, C4H, COMT, CCoAMT, F5H and CCR, it was found that the content of lignocellulose was related to the expression level of these structural genes.Conclusions: This study provides a basis for further understanding the molecular mechanisms of cellulose and lignin synthesis pathways of elephant grass, and offers a unique and extensive list of candidate genes for future specialized functional studies which may promote the development of high-quality elephant grass varieties with high cellulose and low lignin content.

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Boron and calcium deficiency disturbing the growth of trifoliate rootstock seedlings (Poncirus trifoliate L.) by changing root architecture and cell wall

Cited by 33 publications

References 53 publications

What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

What’s under the Christmas tree? Soil acidification alters fir tree rhizosphere bacterial and eukaryotic communities, their interactions, and functional traits

Tissue-Specific Transcriptome Analysis Reveals Lignocellulose Synthesis Regulation in Elephant Grass (Pennisetum purpureum Schum.)

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