Phloem unloading and activity of enzymes hydrolyzing sucrose in the apex of the growing root

Feshchenko, N. F.; Krasavina, M. S.; Бурмистрова, Н. А.; Носов, А. В.

doi:10.1007/s10628-005-0015-9

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Spreading of isotope and fluorescent labels between phloem loading and unloading zones supports such a supposition [19,20]. A specialized partition channel, which transverses the entire plant body?…”

Section: Structure Of the Cell Systemsmentioning

confidence: 91%

10.1007/s11183-008-2016-x

2010

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Our present view of the structure of higher plant cell systems arising on the basis of electron, fluorescent, and confocal microscopy and also video movies of living cells under confocal microscope is presented. The role of the partition (conducting) system in the arrangement of the whole plant cell systems, their development, breakdown, and renewal is demonstrated. The phylogenetic origination of the partition net and its primary role in the ontogenetic development of the cell systems are considered in the context of the theory of endosymbiogenesis. The data concerning growth limits and a diversity of the higher plant cell system organization are compared. The specific features of the cell systems of prokaryotes, autotrophic and heterotrophic eukaryotes, and also of their evolution are discussed.

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Section: Structure Of the Cell Systemsmentioning

confidence: 91%

10.1007/s11183-008-2016-x

2010

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“…Invertase activity localization has been established in some higher plant species (Krishnan et al 1985, Wu et al 1993, Kingston-Smith and Pollock 1996, Zhang et al 2001, Sergeeva and Vreugdenhil 2002, Feshchenko et al 2004, McLaughlin and Boyer 2004, Sergeeva et al 2006. Since sporophytes of ferns are photoautotrophic vascular plants, it is reasonable to assume that the localization and functions of invertase activity are the same as those of higher plants.…”

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confidence: 99%

Acid invertase localization in leaves of the fern Pteris deflexa Link

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Rm²,

Mi³

2009

Eur J Histochem

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The localization of invertase, a key enzyme in plant carbohydrate metabolism, has been established in several higher plants, but there are no reports of it in ferns. The aim of the present work was to establish the localization of the previously reported acid invertase activity of Pteris deflexa in fronds tissues and to compare the findings with invertase localization in higher plants. Acid invertase, localized by immuno-histochemical and histochemical techniques on fresh tissues, was evident in vascular tissue, mainly in phloem. It was also detected in parenchymatic, sclerenchymatic and epidermic cells of petiole, rachis and rachis branches as well as in veins of leaf blades. Our results demonstrate that P. deflexa acid invertase localization is the same to that of higher plants. Hence, potential roles of the fern enzyme in relation to the storage and utilization of sucrose and to control carbon flux could be the same of those proposed to higher plants

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Phloem unloading and activity of enzymes hydrolyzing sucrose in the apex of the growing root

Cited by 2 publications

References 9 publications

10.1007/s11183-008-2016-x

10.1007/s11183-008-2016-x

Acid invertase localization in leaves of the fern Pteris deflexa Link

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