An Insight into the Responses of Early-Maturing Brassica napus to Different Low-Temperature Stresses

Mapping Intimacies ◽

10.5772/intechopen.93708 ◽

2020 ◽

Author(s):

Xin He

Keyword(s):

Brassica Napus ◽

Low Temperature ◽

Molecular Mechanisms ◽

Temperature Stresses ◽

Brassica Napus L ◽

Winter Type ◽

Early Maturing ◽

Biennial Plants ◽

Winter Rapeseed ◽

Insight Into

Rapeseed (Brassica napus L.) is an important oil crop worldwide, responds to vernalization, and shows an excellent tolerance to cold stresses during vegetative stage. The winter-type and semi-winter-type rapeseed were typical winter biennial plants in Europe and China. In recent years, more and more early-maturing semi-winter rapeseed varieties were planted across China. Unfortunately, the early-maturing rapeseed varieties with low cold tolerance have higher risk of freeze injury in cold winter and spring. The molecular mechanisms for coping with different low-temperature stress conditions in rapeseed recently had gained more attention and development. The present review gives an insight into the responses of early-maturing B. napus to different low-temperature stresses (chilling, freezing, cold-acclimation, and vernalization), and the strategies to improve tolerance against low-temperature stresses are also discussed.

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Cold-Active β-Galactosidases: Insight into Cold Adaption Mechanisms and Biotechnological Exploitation

Marine Drugs ◽

10.3390/md19010043 ◽

2021 ◽

Vol 19 (1) ◽

pp. 43

Author(s):

Marco Mangiagalli ◽

Marina Lotti

Keyword(s):

Low Temperature ◽

Molecular Mechanisms ◽

Building Blocks ◽

Cold Active ◽

Cold Adaption ◽

Glycosyl Donor ◽

Pharmaceutical Industries ◽

Biotechnological Processes ◽

Hydrolysis Of ◽

Insight Into

β-galactosidases (EC 3.2.1.23) catalyze the hydrolysis of β-galactosidic bonds in oligosaccharides and, under certain conditions, transfer a sugar moiety from a glycosyl donor to an acceptor. Cold-active β-galactosidases are identified in microorganisms endemic to permanently low-temperature environments. While mesophilic β-galactosidases are broadly studied and employed for biotechnological purposes, the cold-active enzymes are still scarcely explored, although they may prove very useful in biotechnological processes at low temperature. This review covers several issues related to cold-active β-galactosidases, including their classification, structure and molecular mechanisms of cold adaptation. Moreover, their applications are discussed, focusing on the production of lactose-free dairy products as well as on the valorization of cheese whey and the synthesis of glycosyl building blocks for the food, cosmetic and pharmaceutical industries.

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Extent and structure of linkage disequilibrium in canola quality winter rapeseed (Brassica napus L.)

Theoretical and Applied Genetics ◽

10.1007/s00122-009-1221-0 ◽

2009 ◽

Vol 120 (5) ◽

pp. 921-931 ◽

Cited By ~ 49

Author(s):

Wolfgang Ecke ◽

Rosemarie Clemens ◽

Nora Honsdorf ◽

Heiko C. Becker

Keyword(s):

Linkage Disequilibrium ◽

Brassica Napus ◽

Brassica Napus L ◽

Winter Rapeseed ◽

Canola Quality

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Genotype × Environment Interactions, Heritability, and Trait Correlations of Sinapate Ester Content in Winter Rapeseed (Brassica napus L.)

Crop Science ◽

10.2135/cropsci2006.03.0155 ◽

2006 ◽

Vol 46 (5) ◽

pp. 2195-2199 ◽

Cited By ~ 19

Author(s):

Thomas zum Felde ◽

Heiko C. Becker ◽

Christian Möllers

Keyword(s):

Brassica Napus ◽

Brassica Napus L ◽

Ester Content ◽

Winter Rapeseed ◽

Trait Correlations

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The transfer of cytoplasmic male sterility to winter-type oilseed rape (Brassica napus L.) by protoplast fusion

Plant Science ◽

10.1016/0168-9452(87)90161-0 ◽

1987 ◽

Vol 53 (3) ◽

pp. 243-248 ◽

Cited By ~ 40

Author(s):

Tina L. Barsby ◽

Stephen A. Yarrow ◽

Roger J. Kemble ◽

Ian Grant

Keyword(s):

Brassica Napus ◽

Cytoplasmic Male Sterility ◽

Male Sterility ◽

Protoplast Fusion ◽

Oilseed Rape ◽

Brassica Napus L ◽

Winter Type

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DOUBLE CROPPING WINTER RAPESEED AND GRAIN SORGHUM

Canadian Journal of Plant Science ◽

10.4141/cjps86-060 ◽

1986 ◽

Vol 66 (3) ◽

pp. 425-430 ◽

Cited By ~ 1

Author(s):

R. R. DUNCAN ◽

C. S. HOVELAND

Keyword(s):

Glycine Max ◽

Brassica Napus ◽

Cropping System ◽

Grain Sorghum ◽

Winter Rape ◽

Brassica Napus L ◽

Double Cropping ◽

Glycine Max L ◽

Winter Rapeseed ◽

Sorghum Bicolor L

Since rainfall generally exceeds 500 mm during the winter months and soil erosion is a problem in the southern U.S.A., a cover crop is essential to reduce soil losses. Continuous cultivation of a crop on the same land also provides the opportunity for pest problems to develop. A winter rapeseed (Brassica napus L.)-grain sorghum (Sorghum bicolor (L). Moench.) double-cropping system was investigated in the field from 1981 to 1984. Conventional tillage (CT) and no-till (NT) systems were used for both crops. Gullivar rape was planted in October and harvested in June. Winter rapeseed yields averaged 2.87 t ha−1 on CT plots in 1982. Averaged over 1983 and 1984, rape yields were 1.66 and 0.73 t ha−1 on CT and NT plots, respectively. However, the seeding method biased the rapeseed performance. Problems were encountered with winter weed control and pod shattering in the winter rape plots. Two sorghum hybrids, R. C. Young Oro Txtra and Funks G-550, were planted in June and harvested in October. Grain yields were not significantly different between hybrids (Oro 5.69 t ha−1, Funk 5.67 t ha−1) or between tillage systems (CT 5.59 t ha−1, NT 5.78 t ha−1). Grain yield differences were noted for year × hybrid × tillage interactions. Rape was a weed problem in the sorghum plots. The winter rape-sorghum double-cropping system offers an alternative to current winter small grains-sorghum/soybean (Glycine max (L.) Merr.) or winter annual legume-sorghum/soybean (Glycine max (L.) Merr.) systems; however, markets for the winter rapeseed and production economic analyses are needed prior to adoption of the system. Additional winter rapeseed research is needed to evaluate yields properly under NT conditions.Key words: Sorghum bicolor (L.) Moench, Brassica napus L., conservation tillage, multiple cropping, sorghum, rapeseed

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ADAPTATION OF WINTER RAPESEED IN ONTARIO

Canadian Journal of Plant Science ◽

10.4141/cjps87-095 ◽

1987 ◽

Vol 67 (3) ◽

pp. 675-684 ◽

Cited By ~ 3

Author(s):

G. C. BEAULIEU ◽

D. J. HUME

Keyword(s):

Brassica Napus ◽

Field Trials ◽

Winter Survival ◽

First Year ◽

Brassica Napus L ◽

Northern Ontario ◽

Cold Temperatures ◽

The North ◽

Winter Snow ◽

Winter Rapeseed

In order to determine regions of adaptation of winter rapeseed (Brassica napus L.), field trials were planted at about 30 locations in Ontario in 1981 and 1982. Four cultivars were tested each year. Winter survival was poor in northern Ontario in both years, and along the north shore of Lake Erie in the first year. Over all sites, mean winter survival was 52%. At sites which did not completely winterkill, plant survival and yield averaged 70% and 2.38 t ha−1. Best winter rapeseed performance in Ontario occurred at well-drained sites with good winter snow cower and an absence of excessive flooding or cold temperatures in the spring. Cultivars did not differ in survival or yield in 1981–1982. The cultivar Jet Neuf had higher yields than the other cultivars in 1982–1983. There were differences in oil and protein content among the cultivars. The results suggest that winter rapeseed could become a viable crop in Ontario.Key words: Rapeseed (winter), Brassica napus, seed yield, winter survival, adaptation

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