scholarly journals Exploring multitrophic interactions in oilseed rape fields reveals the prevailing role of Carabidae

2021 ◽  
Author(s):  
Lola Serée ◽  
Antoine Gardarin ◽  
Olivier Crouzet ◽  
Aude Barbottin ◽  
Muriel Valantin‐Morison ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Multitrophic Interactions

scholarly journals Entomopathogenic nematodes: can we use the current knowledge on belowground multitrophic interactions in future plant protection programmes? – Review

2019 ◽  
Vol 55 (No. 4) ◽  
pp. 242-253 ◽  
Author(s):  
Anamarija Jagodič ◽  
Stanislav Trdan ◽  
Žiga Laznik
Keyword(s):  
Biological Control ◽  
Entomopathogenic Nematodes ◽  
Insect Pests ◽  
Current Knowledge ◽  
Plant Protection ◽  
Multitrophic Interactions ◽  
Herbivore Attack ◽  
Below Ground ◽  
Chemical Stimuli

Plants under herbivore attack emit mixtures of volatiles that can attract the natural enemies of the herbivores. Entomopathogenic nematodes (EPNs) are organisms that can be used in the biological control of insect pests. Recent studies have shown that the movement of EPNs is associated with the detection of chemical stimuli from the environment. To date, several compounds that are responsible for the mediation in below ground multitrophic interactions have been identified. In the review, we discuss the use of EPNs in agriculture, the role of belowground volatiles and their use in plant protection programmes.

scholarly journals The role of auxin in cell separation in the dehiscence zone of oilseed rape pods

1997 ◽  
Vol 48 (7) ◽  
pp. 1423-1429 ◽  
Author(s):  
N. Chauvaux ◽  
R. Child ◽  
K. John ◽  
P. Ulvskov ◽  
B. Borkhardt ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Cell Separation ◽  
Dehiscence Zone

scholarly journals Ascorbate-Mediated Modulation of Cadmium Stress Responses: Reactive Oxygen Species and Redox Status in Brassica napus

2020 ◽  
Vol 11 ◽  
Author(s):  
Ha-il Jung ◽  
Bok-Rye Lee ◽  
Mi-Jin Chae ◽  
Eun-Jin Lee ◽  
Tae-Gu Lee ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Brassica Napus ◽  
Oilseed Rape ◽  
Antioxidant Defense ◽  
Redox Status ◽  
Oxygen Species ◽  
Cd Uptake ◽  
Defense Systems ◽  
Cd Uptake And Accumulation

The role of ascorbate (AsA) in antioxidant defense system-associated resistance to cadmium (Cd) in oilseed rape plants has not yet been clearly demonstrated. The present study investigated the critical role of exogenous AsA on the physiological and biochemical responses of reactive oxygen species (ROS) and antioxidant scavenging defense systems in oilseed rape (Brassica napus L. cv. Tammi) seedlings exposed to Cd. Cd (10 μM) treatment led to significant reductions in plant growth; increases in the levels of superoxide anion radical, hydrogen peroxide, and malondialdehyde; and increases in Cd uptake and accumulation by the roots and shoots in hydroponically grown 10-day-old seedlings. Moreover, it reduced AsA content and AsA redox ratios, which have been correlated with reductions in glutathione (GSH) and/or nicotinamide adenine dinucleotide phosphate (NADPH) redox status. However, exogenously applying AsA to Cd-exposed seedlings decreased Cd-induced ROS, improved antioxidant defense systems by increasing AsA, GSH, and NADPH contents, and increased Cd uptake and accumulation in both roots and shoots of the plants. These results provided evidence that the enhancement in AsA redox status can be linked to an increase in the GSH and/or NADPH redox ratios through the induction of the AsA–GSH–NADPH cycle. Thus, these results suggest that exogenous AsA application to oilseed rape seedlings under Cd stress might alleviate the overall Cd toxicity by regulating the homeostasis of the AsA–GSH–NADPH cycle, which reestablishes the steady-state cellular redox status.

Effects of Chinese honeybee foraging on oilseed rape gene flow and honey ingredients

2017 ◽  
Vol 155 (10) ◽  
pp. 1623-1632
Author(s):  
F. X. LIU ◽  
C. P. BU ◽  
T. TANG ◽  
G. M. CHEN ◽  
S. K. GU ◽  
...  
Keyword(s):  
Gene Flow ◽  
Oilseed Rape ◽  
Safety Management ◽  
Apis Cerana ◽  
Pollen Grains ◽  
Intermediate Frequency ◽  
Scientific Basis ◽  
Trade Disputes ◽  
Exogenous Genes

SUMMARYHoneybee foraging can transfer exogenous genes from genetically modified (GM) oilseed rape (Brassica napusL.) to closely related plants, which not only induces potential ecological risks but also contaminates non-GM seeds or honey products with GM ingredients. These events may lead to international trade disputes. Chinese honeybees (Apis cerana ceranaFabricius) and a herbicide (glufosinate)-resistant GM strain ofB. napus(Z7B10) were studied to examine the effects of honeybee short-range foraging on oilseed rape gene flow and honey ingredients. Results showed variable frequencies of gene flow between GM and non-GM oilseed rape cultivars, with the highest frequency under nylon net isolation with artificially stocked honeybees, the lowest frequency under nylon net isolation alone, and an intermediate frequency under natural pollination, suggesting the important role of honeybee foraging in gene flow frequency. Additionally, GM pollen grains were found in honey collected from honeybees foraging on both GM and non-GM oilseed rape cultivars. The phosphinothricin acetyltransferase protein was also detected in both unbroken pollen-containing and pollen-free honey by protein testing strips, suggesting that honeybee foraging on GM oilseed rape could lead to contamination with GM ingredients. Overall, the results provide a direct scientific basis for the ecological risk assessment and safety management of GM oilseed rape.

The role of boron nutrition in seed vigour of oilseed rape (Brassica napus L.)

2015 ◽  
Vol 402 (1-2) ◽  
pp. 63-76 ◽  
Author(s):  
Kai Eggert ◽  
Nicolaus von Wirén
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Brassica Napus L ◽  
Seed Vigour
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