Seed development, germination, and storage behaviour of Syzygium maire (Myrtaceae), a threatened endemic New Zealand tree

2020 ◽  
pp. 1-19
Author(s):  
Karin Van der Walt ◽  
Peter Kemp ◽  
Svetla Sofkova-Bobcheva ◽  
David J. Burritt ◽  
Jayanthi Nadarajan
Keyword(s):  
New Zealand ◽  
Seed Development ◽  
And Storage

scholarly journals Two-dimensional gel electrophoretic protein profile analysis during seed development of Ocotea catharinensis: a recalcitrant seed species

2010 ◽  
Vol 22 (1) ◽  
pp. 23-33 ◽  
Author(s):  
Leonardo L.C. Dias ◽  
Tiago S. Balbuena ◽  
Vanildo Silveira ◽  
Claudete Santa-Catarina ◽  
Andrej Schevchenko ◽  
...  
Keyword(s):  
Seed Development ◽  
Protein Identification ◽  
Protein Extraction ◽  
Profile Analysis ◽  
Protein Profile ◽  
Two Dimensional ◽  
Two Dimensional Gel Electrophoresis ◽  
Recalcitrant Seed ◽  
And Storage ◽  
Cotyledonary Stage

The aim of the present work was to characterize changes in the protein profile throughout seed development in O. catharinensis, a recalcitrant species, by two-dimensional gel electrophoresis. Protein extraction was undertaken by using a thiourea/urea buffer, followed by a precipitation step with 10% TCA. Comparative analysis during seed development showed that a large number of proteins were exclusively detected in each developmental stage. The cotyledonary stage, which represents the transition phase between embryogenesis and the beginning of metabolism related to maturation, presents the highest number of stage-specific spots. Protein identification, through MS/MS analysis, resulted in the identification of proteins mainly related to oxidative metabolism and storage synthesis. These findings contribute to a better understanding of protein metabolism during seed development in recalcitrant seeds, besides providing information on established markers that could be useful in defining and improving somatic embryogenesis protocols, besides monitoring the development of somatic embryos in this species.

Fertility preservation in children newly diagnosed with cancer: Existing standards of practice in Australia and New Zealand

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 9047-9047
Author(s):  
J. A. Heath ◽  
C. J. Stern
Keyword(s):  
New Zealand ◽  
Fertility Preservation ◽  
Pediatric Oncology ◽  
North American ◽  
Ethical Issues ◽  
Ovarian Tissue ◽  
Newly Diagnosed ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
And Storage

9047 Background: Over the past two decades, rapid advances have occurred in both the successful treatment of childhood cancers and reproductive medicine. We sought to establish the current level of clinical practice for sperm, oocyte and gonadal tissue collection and storage in children newly diagnosed with cancer in Australia and New Zealand (ANZ). Methods: A cross-sectional survey of all pediatric oncology services in ANZ was performed. Comparisons to recently published North American practices and to current recommendations for best practice were also made. Results: Of the 13 centers invited to participate, 12 (92%) completed the survey. All centers had offered sperm conservation, but only ten (83%) had offered oocyte/ovarian tissue conservation. Available methods of gamete collection and storage were not consistent. Two centers were using GnRH agonists as fertility protection in post-pubertal females. Forty-two per cent had offered fertility conservation to males and females prior to completion of sexual development. All centers were more likely to offer sperm conservation than oocyte conservation for any given disease. The most common diseases for which conservation was offered were lymphomas and sarcomas. The anticipated cumulative dose at which centers elected to offer fertility preservation varied widely, both for the alkylator cyclophosphamide (1g/m2 to 10g/m2) and for abdominal/pelvic irradiation (any to 12 Gy) and spinal irradiation (any to 18Gy). Fertility counseling was offered in a variety of settings by 82% of centers. Despite 92% of centers agreeing that fertility preservation guidelines would be helpful, only two (17%) had any in place. Overall, there was greater uptake and consistency of utilization of fertility services in ANZ when compared with published North American data. Conclusions: There are inconsistencies regarding the indications for and methods of gamete conservation in pediatric oncology centers throughout ANZ. Unresolved medical, legal and ethical issues suggest the development of guidelines and a voluntary code of practice would be helpful. No significant financial relationships to disclose.

Starch metabolism during growth and storage of tubers of two New Zealand potato cultivars

1994 ◽  
Vol 22 (3) ◽  
pp. 295-304 ◽  
Author(s):  
Christine E. Lewis ◽  
Jane E. Lancaster ◽  
Peter Meredith ◽  
John R. L. Walker
Keyword(s):  
New Zealand ◽  
Potato Cultivars ◽  
Starch Metabolism ◽  
And Storage

scholarly journals Understanding Magma Rise and Storage Using Major Element Diffusion in Olivine; Pupuke Maar, Auckland Field, New Zealand

2020 ◽  
Author(s):  
Madison Anae ◽  
Victoria Cassady ◽  
Ingrid Ukstins ◽  
Marco Brenna ◽  
Shane J Cronin ◽  
...  
Keyword(s):  
New Zealand ◽  
Major Element ◽  
Element Diffusion ◽  
And Storage

UNDERSTANDING MAGMA RISE AND STORAGE USING MAJOR ELEMENTAL DIFFUSION IN OLIVINE; PUPUKE MAAR, AUCKLAND FIELD, NEW ZEALAND

2020 ◽  
Author(s):  
Madison Anae ◽  
◽  
Victoria Cassady ◽  
Ingrid Ukstins ◽  
Marco Brenna ◽  
...  
Keyword(s):  
New Zealand ◽  
Elemental Diffusion ◽  
And Storage

Polysaccharides from new zealand native plants: A review of their structure, properties, and potential applications

2020 ◽  
Author(s):  
Susan Carnachan ◽  
Tracey Bell ◽  
Simon Hinkley ◽  
Ian Sims
Keyword(s):  
New Zealand ◽  
Water Soluble ◽  
Composition And Structure ◽  
Structures And Properties ◽  
Wide Range ◽  
Potential Applications ◽  
Food Applications ◽  
Year 2000 ◽  
And Storage ◽  
Structure Properties

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Water-soluble, non-starch polysaccharides fromplants are used commercially in a wide range of food and non-food applications. The increasing range of applications for natural polysaccharides means that there is growing demand for plant-derived polysaccharides with different functionalities. The geographical isolation of New Zealand and its unique flora presents opportunities to discover new polysaccharides with novel properties for a range of applications. This review brings together data published since the year 2000 on the composition and structure of exudate gums, mucilages, and storage polysaccharides extracted from New Zealand endemic land plants. The structures and properties of these polysaccharides are compared with the structures of similar polysaccharides from other plants. The current commercial use of these polysaccharides is reviewed and their potential for further exploitation discussed.

Polysaccharides from new zealand native plants: A review of their structure, properties, and potential applications

2020 ◽  
Author(s):  
Susan Carnachan ◽  
Tracey Bell ◽  
Simon Hinkley ◽  
Ian Sims
Keyword(s):  
New Zealand ◽  
Water Soluble ◽  
Composition And Structure ◽  
Structures And Properties ◽  
Wide Range ◽  
Potential Applications ◽  
Food Applications ◽  
Year 2000 ◽  
And Storage ◽  
Structure Properties

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Water-soluble, non-starch polysaccharides fromplants are used commercially in a wide range of food and non-food applications. The increasing range of applications for natural polysaccharides means that there is growing demand for plant-derived polysaccharides with different functionalities. The geographical isolation of New Zealand and its unique flora presents opportunities to discover new polysaccharides with novel properties for a range of applications. This review brings together data published since the year 2000 on the composition and structure of exudate gums, mucilages, and storage polysaccharides extracted from New Zealand endemic land plants. The structures and properties of these polysaccharides are compared with the structures of similar polysaccharides from other plants. The current commercial use of these polysaccharides is reviewed and their potential for further exploitation discussed.

Alternaria cucumerina. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
South Africa ◽  
New Zealand ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Cucumis Melo ◽  
Citrullus Lanatus ◽  
Ripe Fruit ◽  
In Transit ◽  
And Storage ◽  
Light Green

Abstract A description is provided for Alternaria cucumerina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Citrullus lanatus, Cucumis melo, C. sativus, Cucurbita spp. DISEASE: Leaf spot of cucumber and melon (watermelon, musk melon, cantaloupe). Symptoms begin as yellow-brown flecks, 0.5 mm diam., on the upper surface of usually the crown leaves. They have a light green halo and gradually enlarge, becoming coalescent, with concentric ringing more commonly on the upper surface. Death of the leaves can be followed by lesions, several cm diam., forming on ripe fruit. These become covered with a dark, olive-green, conidial mass; they may be sunken and also show the concentric zonation. Infection of fruit in the field may be aggravated by exposure to sunlight (10: 431). Infection of stems or petioles does not occur. The pathogen can also cause decay in transit and storage, especially of melons and squash. GEOGRAPHICAL DISTRIBUTION: Arabia, Australia, Canada, Chile, Cuba, Cyprus, England, France, Japan, Kenya, Libya, Mozambique, New Zealand, Nigeria, Rhodesia, Rumania, Sierra Leone, South Africa, Sudan, Thailand, Trinidad, U.S.A., Venezuela, Zambia. TRANSMISSION: Seed may become contaminated with conidia. Survival from season to season is probably through mycelium in host debris. No air dispersal studies have been reported.

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