An Evaluation of Studies on Ultrastructure of Tonoplast in Sieve Elements

Esau, Katherine; Cheadle, Vernon I.

doi:10.1073/pnas.48.1.1

Cited by 268 publications

(49 citation statements)

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“…Both within philosophy and within our culture at large, there is a deep-rooted tendency to link the idea of responsibility fundamentally to morality, by holding that its point or purpose is moral evaluation: the assessment of another and their behaviour as good or bad, right or wrong. In addition, such moral evaluation is sometimes understood as fundamentally affective in form [48] – embodied and expressed in our feelings towards those whose actions we morally condemn. These feelings can include anger, resentment, hate, indignation, disgust, revulsion, contempt and scorn, and are often accompanied by equally hostile thoughts and actions.…”

Section: Responsibility Without Blame In the Clinic12mentioning

confidence: 99%

Responsibility without Blame for Addiction

Pickard

2017

Neuroethics

168

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Drug use and drug addiction are severely stigmatised around the world. Marc Lewis does not frame his learning model of addiction as a choice model out of concern that to do so further encourages stigma and blame. Yet the evidence in support of a choice model is increasingly strong as well as consonant with core elements of his learning model. I offer a responsibility without blame framework that derives from reflection on forms of clinical practice that support change and recovery in patients who cause harm to themselves and others. This framework can be used to interrogate our own attitudes and responses, so that we can better see how to acknowledge the truth about choice and agency in addiction, while avoiding stigma and blame, and instead maintaining care and compassion alongside a commitment to working for social justice and good.

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Section: Responsibility Without Blame In the Clinic12mentioning

confidence: 99%

Responsibility without Blame for Addiction

Pickard

2017

Neuroethics

168

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“…In this regard, the extruded nucleoli of Tilia differ from those of Passifiora (Kollmann, 1960) and from the ordinary nucleoli of parenchymatous elements (Lafontaine, 1958a,b). The outer cortex is sculptured, having many coarse, short protrusions (Esau, 1947(Esau, , 1950. OsO,;both X 12,260.-Fig.…”

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confidence: 99%

“…9, unlabeled arrow), and resembling sieve-element slime, was encountered. The companion cells of Tilia would not be unique in this regard, for slime has been identified, with the light microscope, in companion cells of 3 other species (Esau, 1948(Esau, , 1961Evert, 1963a).…”

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confidence: 99%

“…12,14,17,19,at v) are present which occupy a mostly parietal position in association with the plasmalemma. Such vesicles are generally interpreted as representing remains of endoplasmic reticulum and various organelles which degenerated during sieve-element differentiation (Esau and Cheadle, 1962a,b;Esau et al, 1962;Esau, 1964). No plastids or dictyosomes were observed in mature sieve elements.…”

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confidence: 99%

“…Because of the particular attention currently being devoted to the question whether or not the connecting strands of sieve elements are structurally similar to plasmodesmata (Esau et al, 1962;Esau, 1964;Kollmann andSchumacher, 1962a, 1963), these structures in Tilia were of special interest. There is no doubt that the connecting strands of the sieve plates and lateral sieve areas differ structurally from plasmodes-[Vol.…”

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confidence: 99%

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Ultrastructure of the Secondary Phloem of Tilia Americana

Evert

Murmanis

1965

American J of Botany

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Summer and winter (July and January) samples of secondary phloem of Tilia americana were studied with the electron microscope. Parenchyma cells contain: nuclei, endoplasmic reticulum, ribosomes, plastids, mitochondria and occasional dictyosomea, Well-defined tonoplasts separate vacuoles from cytoplasmic ground substance. Vacuoles often contain tannins. Lipid droplets are common in cytoplasm. Endoplasmic reticulum-connected plasmodesmata are aggregated in primary pit fields. Companion cells differ from parenchyma cells in having numerous sieve-element connections, possibly slime, and in lacking plastids. Mature, enucleate sieve elements possess 1-4 extruded nucleoli. Numerous vesicles occupy a mostly parietal position in association with plasmalemma. The mature sieve element lacks endoplasmic reticulum, organelles (except for few mitochondria) and tonoplast. In OS04and glutaraldehyde-fixed elements, slime has a fine, fibrillar appearance. Normally, these fine fibrils are organized into coarser ones which form strands that traverse the cell and the plasmalemma-lined pores of sieve plates and lateral sieve areas.

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Responsibility, Agency, and Cognitive Disability

Shoemaker

2010

Cognitive Disability and Its Challenge to Moral Philosophy

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An Evaluation of Studies on Ultrastructure of Tonoplast in Sieve Elements

Cited by 268 publications

References 2 publications

Responsibility without Blame for Addiction

Responsibility without Blame for Addiction

Ultrastructure of the Secondary Phloem of Tilia Americana

Responsibility, Agency, and Cognitive Disability

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