نتایج جستجو برای: european pear seedling

تعداد نتایج: 204426  

2017
Xuan T. Truong Seo-Hee Park Yu-Geon Lee Hang Yeon Jeong Jae-Hak Moon Tae-Il Jeon

Despite the critical role of melanin in the protection of skin against UV radiation, excess production of melanin can lead to hyperpigmentation and skin cancer. Pear fruits are often used in traditional medicine for the treatment of melasma; therefore, we investigated the effects of pear extract (PE) and its component, protocatechuic acid (PCA), on melanogenesis in mouse melanoma cells. We foun...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Jiping Liu Joyce Van Eck Bin Cong Steven D Tanksley

A common, recurring theme in domesticated plants is the occurrence of pear-shaped fruit. A major quantitative trait locus (termed ovate) controlling the transition from round to pear-shaped fruit has been cloned from tomato. OVATE is expressed early in flower and fruit development and encodes a previously uncharacterized, hydrophilic protein with a putative bipartite nuclear localization signal...

Journal: :Plant physiology 1975
S I Ozelkök R J Romani

The retention of respiratory control ("survival") by mitochondria held at 25 C was studied in relation to the ripening of two varieties of avocado (Persea americana Mill. var. ;Fuerte' and ;Hass') and one variety of pear (Pyrus communis. L. var. ;Bartlett') fruit. The survival of avocado mitochondria increased from 8 to 10 hours when isolated from unripe, preclimacteric fruit, to 48 hours when ...

2016
Jiao Tang Carlos A. Busso Deming Jiang Yongcui Wang Dafu Wu Renhui Miao Chunping Miao Giovanni de Feo

We investigated the effects of seed burial depth and soil water content on seedling emergence and growth of Ulmus pumila var. sabulosa (sandy elm), an important native tree species distributed over the European-Asian steppe. Experimental sand burial depths in the soil were 0.5, 1.0, 1.5, 2.0 and 2.5 cm, and soil water contents were 4%, 8%, 12% and 16% of field capacity. All two-way ANOVA (five ...

2018
Francesca Tozzi Ben M. van Hooijdonk Donald S. Tustin Luca Corelli Grappadelli Brunella Morandi Pasquale Losciale Luigi Manfrini

Citation: Tozzi F, van Hooijdonk BM, Tustin DS, Corelli Grappadelli L, Morandi B, Losciale P and Manfrini L (2018) Photosynthetic Performance and Vegetative Growth in a New Red Leaf Pear: Comparison of Scion Genotypes Using a Complex, Grafted-Plant System. Front. Plant Sci. 9:404. doi: 10.3389/fpls.2018.00404 Photosynthetic Performance and Vegetative Growth in a New Red Leaf Pear: Comparison of...

2011
In-Taek Jang Min-Gu Kang Kwang-Chul Na Jong-Soo Lee

Kluyveromyces fragilis KCTC 7260 and Saccharomyces cerevisiae KCTC 7904, which both grew well in pear marc extract, were selected and their growth profiles and physiological functionalities were determined. Both of the selected yeasts established maximal growth by 20 hr of cultivation at 30℃ in pear marc extract. The cell-free extracts showed high antihypertensive angiotensin I-converting enzym...

Journal: :Journal of bacteriology 2000
U Lauer E Seemüller

A physical map of the apple proliferation phytoplasma strain AT chromosome was constructed from genomic DNA extracted from diseased tobacco plants. The map was generated with single and double digestions of the chromosome with BssHII, SmaI, MluI, and ApaI restriction endonucleases and resolving the fragments by pulsed-field gel electrophoresis. Partial digestion and Southern blot analysis were ...

2009
QINGRONG SUN HONGYAN SUN LINGUANG LI RICHARD L. BELL

Polyploid plantlets, including triploid, tetraploid, and mixoploid, were induced from the European pear (Pyrus communis L.) cultivar ‘Fertility’ by in vitro colchicine treatment of leaf explants. The leaf explants were incubated in 0.4% (w/v) colchicine for 24, 48, or 72 h, then transferred to adventitious shoot-induction medium. Regenerated shoots were pre-selected according to their morpholog...

Journal: :Carbohydrate polymers 2017
Marwa Brahem Catherine M G C Renard Barbara Gouble Sylvie Bureau Carine Le Bourvellec

Cell walls from flesh, parenchyma cells, stone cells and skin were isolated from ripe and overripe Pyrus communis L. cv "De Cloche" using the phenol-buffer method. Pear polysaccharides were solubilized from cell walls by sequential extractions with aqueous solutions of ammonium oxalate, Na2CO3, and increasing concentration of NaOH, to explore overripening impact. Cell walls were also differenti...

Journal: :Frontiers in bioscience : a journal and virtual library 2006
Jean Magloire Feugang Patricia Konarski Daming Zou Florian Conrad Stintzing Changping Zou

Natural products and health foods have recently received a lot of attention both by health professionals and the common population for improving overall well-being, as well as in the prevention of diseases including cancer. In this line, all types of fruits and vegetables have been re-evaluated and recognized as valuable sources of nutraceuticals. The great number of potentially active nutrient...

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