Anatomy and Morphology

Rae, Andrew; Martinelli, Adriana Pinheiro; Dornelas, Marcelo Carnier

doi:10.1002/9781118771280.ch2

Cited by 10 publications

(4 citation statements)

References 58 publications

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“…At the periphery of the stalk, closely spaced vascular bundles and associated sclerenchyma form a thick rind. The rind, together with the vascular bundles comprises the majority of the thickened fibre in the stalk (see plate 2.1, in Rae et al 2014). The distribution of metabolic activities between these tissues is likely to be an important determinant of the relative proportions of carbon entering the sucrose or fibre pools.…”

Section: Introductionmentioning

confidence: 98%

Tissue-specific transcriptome analysis within the maturing sugarcane stalk reveals spatial regulation in the expression of cellulose synthase and sucrose transporter gene families

et al. 2015

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Sugarcane (Saccharum spp. hybrids) accumulates high concentrations of sucrose in its mature stalk and a considerable portion of carbohydrate metabolism is also devoted to cell wall synthesis and fibre production. We examined tissue-specific expression patterns to explore the spatial deployment of pathways responsible for sucrose accumulation and fibre synthesis within the stalk. We performed expression profiling of storage parenchyma, vascular bundles and rind dissected from a maturing stalk internode of sugarcane, identifying ten cellulose synthase subunit genes and examining significant differences in the expression of their corresponding transcripts and those of several sugar transporters. These were correlated with differential expression patterns for transcripts of genes encoding COBRA-like proteins and other cell wall metabolism-related proteins. The sugar transporters genes ShPST2a, ShPST2b and ShSUT4 were significantly up-regulated in storage parenchyma while ShSUT1 was up-regulated in vascular bundles. Two co-ordinately expressed groups of cell wall related transcripts were also identified. One group, associated with primary cell wall synthesis (ShCesA1, ShCesA7, ShCesA9 and Shbk2l3), was up-regulated in parenchyma. The other group, associated with secondary cell wall synthesis (ShCesA10, ShCesA11, ShCesA12 and Shbk-2), was up-regulated in rind. In transformed sugarcane plants, the ShCesA7 promoter conferred stable expression of green fluorescent protein preferentially in the storage parenchyma of the maturing stalk internode. Our results indicate that there is spatial separation for elevated expression of these important targets in both sucrose accumulation and cell wall synthesis, allowing for increased clarity in our understanding of sucrose transport and fibre synthesis in sugarcane.

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Section: Introductionmentioning

confidence: 98%

Tissue-specific transcriptome analysis within the maturing sugarcane stalk reveals spatial regulation in the expression of cellulose synthase and sucrose transporter gene families

et al. 2015

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“…Cultivars have different phenotypes based on the characteristics of stems, internodes, buds, leaves, and measurable characteristics (Khan 2017). The above-ground morphological characters can be used for testing of distinctiveness, uniformity, and performance of sugarcane cultivars (Singh 2012), and can be used for property rights by plant breeders (Rae 2014), and are referred to as sugarcane descriptors for identification, release, and notification of cultivars (SAS Institute 2004).…”

Section: Phenetic Relationshipmentioning

confidence: 99%

Morphological variations of superior sugarcane cultivars (Saccharum officinarum) from Lampung, Indonesia

WINDIYANI

MAHFUT²,

PURNOMO³

et al. 2022

Biodiversitas

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Abstract. Windiyani IP, Mahfut, Purnomo, Daryono BS. 2022. Morphological variations of superior sugarcane cultivars (Saccharum officinarum) from Lampung, Indonesia. Biodiversitas 23: 4110-4117. Sugarcane (Saccharum officinarum L.) is the main crop for producing sugar and for various industries. The need for sugar is continuously increasing as the population grows and the diverse demands of industrial needs. One of the efforts to increase sugar production is by developing high-yielding sugarcane varieties. In doing so, performing morphological characterization is necessary so that superior sugarcane cultivars can be identified. This study aimed to determine the morphological variations and phenetic relationships of the crosses of sugarcane cultivars of the collections of PT. Gunung Madu Plantation in Lampung, Indonesia. Morphological observation of 15 sugarcane cultivars was carried out on 37 characters covering leaves, leaf midrib, internodes, stems, eyes, and agronomical aspects. The dendrogram was built using the UPGMA cluster using the Gower’s General Similarity Coefficient algorithm, while the PCA analysis was performed using the Euclidean Distance algorithm using MVSP v.3.1 software. The results of the study showed that there were fairly high morphological variations among the sugarcane cultivars observed. The results showed the superior sugarcane cultivars of PT. GMP collections (i.e., GMP 1, GMP 2, GMP 3, GMP 4, GMP 5, GMP 6, and GMP 7) were not in one cluster due to differences between each parent. The principal component analysis of 37 characters showed that the total variation on axis I contributed 27.62% to the variation with an eigenvalue of 0.25, while axis II was 17.9% with an eigenvalue of 0.16. The information about morphological variations in this study suggests that morphological characters as taxonomic evidence are very good for identifying and analyzing local sugarcane cultivar variations and knowing the closeness of their kinship relationships.

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“…O nó tem grande importância para os feixes vasculares. Abaixo do meristema apical os tecidos do entrenó possuem grande crescimento e elongação celular, contendo vasos condutores e parenquimáticos (Rae et al, 2014).…”

Section: Introductionunclassified

Desenvolvimento inicial da cana-de-açúcar em função da origem da gema e promotores na replicação

Arnt¹,

Nascimento

Cardeal³

et al. 2018

Agrarian

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O crescimento inicial e a produtividade das grandes culturas podem ser consideravelmente acelerados com a realização de adubação correta, com os elementos na quantidade adequada. Com isto, objetivou-se avaliar o efeito na brotação da cana-de-açúcar de dois fertilizantes comercialmente utilizados (Byozime® e Power Cana®), em três concentrações (0,5%; 1,0%; 1,5%) de acordo com a posição das gemas (terço basal, médio e apical) na propagação dos colmos durante o plantio da variedade CTC 24. Foram avaliadas as características altura de plantas, comprimento da raíz, massa verde da parte aérea, massa verde da raíz, massa seca da parte aérea e massa seca da raíz. Os produtos potencializaram as gemas do ápice e do terço médio, onde a massa verde e massa seca da parte aérea, altura de plantas, comprimento de raiz e massa seca da raiz obtiveram maiores resultados. Nas gemas basais o produto Byozime® na concentração de 1,0% apresentou maiores valores de altura de plantas, massa seca e massa verde da parte aérea e comprimento de raiz. Há um efeito positivo destes fertilizantes foliares no crescimento inicial da cana-de-açúcar.

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Anatomy and Morphology

Cited by 10 publications

References 58 publications

Tissue-specific transcriptome analysis within the maturing sugarcane stalk reveals spatial regulation in the expression of cellulose synthase and sucrose transporter gene families

Tissue-specific transcriptome analysis within the maturing sugarcane stalk reveals spatial regulation in the expression of cellulose synthase and sucrose transporter gene families

Morphological variations of superior sugarcane cultivars (Saccharum officinarum) from Lampung, Indonesia

Desenvolvimento inicial da cana-de-açúcar em função da origem da gema e promotores na replicação

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