Hubertus Kohn

Western Washington University

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O. Schieder

Freie Universität Berlin

J. Levitt

University of Pennsylvania

Thomas Pickardt

German Centre for Cardiovascular Research

Matthias Nibbe

Freie Universität Berlin

Y. Waisel

Tel Aviv University

Mechthild Tegeder

Washington State University

Béatrice Huber

Universidad del Norte de Nicaragua

J. LEVITT

University of Pennsylvania

Rudolf Schieder

University of Cologne

Susan Eapen

Kuwait University

Cooperative Institutions

Freie Universität Berlin

Max Planck Society

University of Tübingen

University of Pennsylvania

University of Missouri

Universidad del Norte de Nicaragua

Instituto Nacional de las Mujeres

Gerontologic Complex La Milagrosa

William P. Wharton Trust

Carnegie Institution for Science

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Plant regeneration from protoplasts ofVicia narbonensis via somatic embryogenesis and shoot organogenesis

Plant Cell Reports (1996)

Mechthild Tegeder Hubertus Kohn Matthias Nibbe O. Schieder Thomas Pickardt

Organogenesis

Protoplast

Etiolation

10.1007/bf01275442

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Citations (13)

Stable transformation of moth bean Vigna aconitifolia via direct gene transfer

Plant Cell Reports (1987)

F. K�hler C. Golz Susan Eapen Hubertus Kohn O. Schieder

Protoplast

Kanamycin

Southern blot

Chloramphenicol acetyltransferase

10.1007/bf00272007

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Citations (73)

Effect of warm temperature treatments on freezing tolerance and relative water content of some conifers

Cryobiology (1980)

William G. Kamm Hubertus Kohn

Freezing tolerance

10.1016/0011-2240(80)90174-1

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Citations (2)

Sulfhydryls—A New Factor in Frost Resistance. IV. Relation of GSH-Oxidizing Activity to Flower Induction & Hardiness

PLANT PHYSIOLOGY (1962)

Y. Waisel Hubertus Kohn J. LEVITT

It was previously shown (7) that GSH5-oxidizing activity increases progressively during the first and second stages of hardiness, though total SH content increases during the first and frequently decreases or fails to change during the second stage. Although frost resistance rises parallel with the increase in GSH-oxidizing activity, the question was raised whether this change is a true hardiness factor or perhaps a vernalization factor leading to flowering. In order to settle this question, the GSH-oxidizing activity was followed during the vernalization of wheat, in relation to both the change in frost resistance and in ability to flower. The effect of photoperiod on the activity was also tested.

Hardiness (plants)

Oxidizing agent

Frost (temperature)

10.1104/pp.37.3.272

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Citations (13)

Plant regeneration from protoplasts of Vicia narbonensis via somatic embryogenesis and shoot organogenesis

Plant Cell Reports (1996)

Mechthild Tegeder Hubertus Kohn Matthias Nibbe O. Schieder Thomas Pickardt

Organogenesis

Protoplast

Etiolation

10.1007/s002990050168

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Citations (1)

Somatic hybrids in tobacco mediated by electrofusion

Plant Science (1985)

Hubertus Kohn Rudolf Schieder O. Schieder

Electrofusion

Protoplast

Somatic fusion

Cell fusion

10.1016/0168-9452(85)90141-4

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Citations (54)

Plant Cell Fusion As A Tool For Genetic Manipulation

De Gruyter eBooks (1986)

O. Schieder T. Hein Hubertus Kohn

10.1515/9783110871944-114

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Citations (0)

Protoplast Fusion and Generation of Somatic Hybrids

Elsevier eBooks (1986)

O. Schieder Hubertus Kohn

Protoplast

Somatic fusion

10.1016/b978-0-12-715003-1.50036-8

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Citations (16)

Interrelations Between Photoperiod, Frost Hardiness and Sulfhydryl Groups in Cabbage

PLANT PHYSIOLOGY (1966)

Hubertus Kohn J. Levitt

Hardening of SD (8 and 12 hrs) and LD (18- and 24-hr photoperiods) cabbage plants in stages at temperatures starting with + 5 degrees and ending with - 3 degrees led to the following changes:Soluble protein plus nonprotein N showed a net increase only in the SD plants. In both SD and LD plants, it decreased to a minimum toward the end of the first stage of hardening, increased to a maximum in the second stage. The degree of this change was proportional to the photoperiod. These changes were mainly due to the proteins.As in previous investigations, SH content rose during the first 1 to 2 weeks, but only in the SD plants. This rise was primarily due to the protein fraction. After the first 1 to 2 weeks both SD and LD plants showed a decrease in SH content, most pronouncedly during the second stage of hardening.Nonprotein SH content was very low and decreased during hardening in both SD and LD plants. Nonprotein SS increased during the first stage of hardening. Total nonprotein SH+2SS rose to a maximum during the first stage of hardening, paralleling both osmotic potential and hardiness. During the second stage the total decreased, in spite of the rise in hardiness. These results held true for both SD and LD plants.These results are all explainable on the basis of the SHright harpoon over left harpoonSS theory of frost resistance.

Hardening (computing)

Frost (temperature)

Hardiness (plants)

10.1104/pp.41.5.792

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Citations (12)

Zur Frage der Unterscheidbarkeit physiologischer Rassen bei Abies alba

Forstwissenschaftliches Centralblatt (1963)

Béatrice Huber Hubertus Kohn

10.1007/bf01825997

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Citations (11)