scholarly journals The role of floral scent of the cherry tree, Prunus yedoensis, in the foraging behavior of Luehdorfia japonica (Lepidoptera : Papilionidae)

1999 ◽  
Vol 34 (3) ◽  
pp. 309-313 ◽  
Author(s):  
Hisashi Omura ◽  
Keiichi Honda ◽  
Ayami Nakagawa ◽  
Nanao Hayashi
Keyword(s):  
Foraging Behavior ◽  
Floral Scent ◽  
Cherry Tree ◽  
Prunus Yedoensis

scholarly journals Do plant volatiles confuse rather than guide foraging behavior of the aphid hyperparasitoid Dendrocerus aphidum?

Chemoecology ◽  
2020 ◽  
Vol 30 (6) ◽  
pp. 315-325
Author(s):  
Jetske G. de Boer ◽  
Petra J. Hollander ◽  
Daan Heinen ◽  
Divya Jagger ◽  
Pim van Sliedregt ◽  
...  
Keyword(s):  
Foraging Behavior ◽  
Plant Volatiles ◽  
Sweet Pepper ◽  
Trophic Levels ◽  
Plant Host ◽  
Olfactory Responses ◽  
Clean Air ◽  
Series Of Experiments ◽  
Pepper Plants

Abstract Many species of parasitoid wasps use plant volatiles to locate their herbivorous hosts. These volatiles are reliable indicators of host presence when their emission in plants is induced by herbivory. Hyperparasitoids may also use information from lower trophic levels to locate their parasitoid hosts but little is known about the role of volatiles from the plant–host complex in the foraging behavior of hyperparasitoids. Here, we studied how Dendrocerus aphidum (Megaspilidae) responds to plant and host volatiles in a series of experiments. This hyperparasitoid uses aphid mummies as its host and hampers biological control of aphids by parasitoids in greenhouse horticulture. We found that D. aphidum females were strongly attracted to volatiles from mummy-infested sweet pepper plants, but only when clean air was offered as an alternative odor source in the Y-tube olfactometer. Hyperparasitoid females did not have a preference for mummy-infested plants when volatiles from aphid-infested or healthy pepper plants were presented as an alternative. These olfactory responses of D. aphidum were mostly independent of prior experience. Volatiles from the host itself were also highly attractive to D. aphidum, but again hyperparasitoid females only had a preference in the absence of plant volatiles. Our findings suggest that plant volatiles may confuse, rather than guide the foraging behavior of D. aphidum. Mummy hyperparasitoids, such as D. aphidum, can use a wide variety of mummies and are thus extreme generalists at the lower trophic levels, which may explain the limited role of (induced) plant volatiles in their host searching behavior.

scholarly journals Prediction of Plant Phenological Shift under Climate Change in South Korea

2020 ◽  
Vol 12 (21) ◽  
pp. 9276
Author(s):  
Ha Kyung Lee ◽  
So Jeong Lee ◽  
Min Kyung Kim ◽  
Sang Don Lee
Keyword(s):  
Climate Change ◽  
Prunus Persica ◽  
Climatic Factors ◽  
Cherry Tree ◽  
Rcp Scenarios ◽  
Temperature And Precipitation ◽  
Prunus Yedoensis ◽  
Forsythia Koreana ◽  
The Difference ◽  
Phenological Shift

Information on the phenological shift of plants can be used to detect climate change and predict changes in the ecosystem. In this study, the changes in first flowering dates (FFDs) of the plum tree (Prunus mume), Korean forsythia (Forsythia koreana), Korean rosebay (Rhododendron mucronulatum), cherry tree (Prunus yedoensis), and peach tree (Prunus persica) in Korea during 1920–2019 were investigated. In addition, the changes in the climatic factors (temperature and precipitation) and their relationship with the FFDs were analyzed. The changes in the temperature and precipitation during the January–February–March period and the phenological shifts of all research species during 1920–2019 indicate that warm and dry spring weather advances the FFDs. Moreover, the temperature has a greater impact on this phenological shift than precipitation. Earlier flowering species are more likely to advance their FFDs than later flowering species. Hence, the temporal asynchrony among plant species will become worse with climate change. In addition, the FFDs in 2100 were predicted based on representative concentration pathway (RCP) scenarios. The difference between the predicted FFDs of the RCP 4.5 and RCP 6.0 for 2100 was significant; the effectiveness of greenhouse gas policies will presumably determine the degree of the plant phenological shift in the future. Furthermore, we presented the predicted FFDs for 2100.

scholarly journals Assessing the role of β-ocimene in regulating foraging behavior of the honey bee, Apis mellifera

Apidologie ◽  
2015 ◽  
Vol 47 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Rong Ma ◽  
Ulrich G. Mueller ◽  
Juliana Rangel
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Foraging Behavior

scholarly journals The Biology of Essential Oils in the Pollination of Flowers

2007 ◽  
Vol 2 (12) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Leland J. Cseke ◽  
Peter B. Kaufman ◽  
Ara Kirakosyan
Keyword(s):  
Essential Oils ◽  
Biological Process ◽  
Floral Scent ◽  
Critical Role ◽  
Genetic Material ◽  
Plant Reproduction ◽  
Higher Plant ◽  
Closely Related Species ◽  
Essential Oil Compounds

Pollination is an essential biological process in higher plant reproduction that involves the transfer of pollen to the female sexual organs of flowers or cones. It plays a critical role in the reproductive success and evolution of most plant species by allowing plants to share genetic material from other members of the same or closely-related species, thus increasing genetic diversity. In many cases, non-plant organisms are involved in carrying out this cross-pollination, including insects, bats, mammals, and birds. In order to attract such pollinators, plants have evolved the ability to produce a mind-boggling array of volatile compounds that have also found abundant use for humans when collected as essential oils. In this review, we focus on the role of essential oil compounds that are produced by flowers as chemical attractants used to draw in their often highly-specific pollinators. We examine in some detail various questions behind the biology of floral scent, including how these compounds are produced in flowers, how they are detected by potential pollinators, and how biotechnology can be used to alter their activity.

The role of root architecture in foraging behavior of entomopathogenic nematodes

2014 ◽  
Vol 122 ◽  
pp. 32-39 ◽  
Author(s):  
Lanila Demarta ◽  
Bruce E. Hibbard ◽  
Martin O. Bohn ◽  
Ivan Hiltpold
Keyword(s):  
Foraging Behavior ◽  
Root Architecture ◽  
Entomopathogenic Nematodes

scholarly journals Optimization of SPME-GC-MS and Characterization of Floral Scents from Aquilegia Japonica and A. Amurensis Flowers

2020 ◽  
Author(s):  
Hua-Ying Wang ◽  
Wei Zhang ◽  
Jian-Hua Dong ◽  
Hao Wu ◽  
Yuan-Hong Wang ◽  
...  
Keyword(s):  
Solid Phase ◽  
Floral Scent ◽  
Rapid Evolution ◽  
Model Species ◽  
Floral Scents ◽  
Future Studies ◽  
Volatile Organic ◽  
New Ideas

Abstract The floral scent of plants plays a key role in plant reproduction through the communication between plants and pollinators. Aquilegia as a model species for studying evolution, however, there have been few studies on the floral scents and relationships between floral scents and pollination for Aquilegia taxa. In this study, three types of solid-phase micro-extraction (SPME) fiber coatings (DVB/PDMS, CAR/PDMS, DVB/CAR/PDMS) were evaluated for their performance in extracting volatile organic compounds (VOCs) from flowers of Aquilegia amurensis, which can to contribute to the future studies of elucidating the role of floral scents in the pollination process. In total, 55 VOCs were identified, and among them, 50, 47 and 45 VOCs were extracted by the DVB/CAR/PDMS fiber, CAR/PDMS fiber and DVB/PDMS fibers, respectively. Only 30 VOCs were detected in A. japonica taxa. Furthermore, the relative contents of 8 VOCs were significant different (VIP > 1 and p < 0.05) between the A. amurensis and A. japonica. Therefore, the results can be applied in new studies of the relationships between the chemical composition of floral scents and the processes of attraction of pollinator. It may provide new ideas for rapid evolution and frequent interspecific hybridization of Aquilegia

scholarly journals Genome-Wide Analysis Reveals the Potential Role of MYB Transcription Factors in Floral Scent Formation in Hedychium coronarium

2021 ◽  
Vol 12 ◽  
Author(s):  
Farhat Abbas ◽  
Yanguo Ke ◽  
Yiwei Zhou ◽  
Yunyi Yu ◽  
Muhammad Waseem ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Gene Family ◽  
Floral Scent ◽  
Expression Patterns ◽  
Acid Methyl Ester ◽  
Regulatory Elements ◽  
Composition Analysis ◽  
Myb Gene ◽  
Hedychium Coronarium

The MYB gene family is one of the largest groups of transcription factors (TFs) playing diverse roles in several biological processes. Hedychium coronarium (white ginger lily) is a renowned ornamental plant both in tropical and subtropical regions due to its flower shape and strong floral scent mainly composed of terpenes and benzenoids. However, there is no information available regarding the role of the MYB gene family in H. coronarium. In the current study, the MYB gene family was identified and extensively analyzed. The identified 253 HcMYB genes were unevenly mapped on 17 chromosomes at a different density. Promoter sequence analysis showed numerous phytohormones related to cis-regulatory elements. The majority of HcMYB genes contain two to three introns and motif composition analysis showed their functional conservation. Phylogenetic analysis revealed that HcMYBs could be classified into 15 distinct clades, and the segmental duplication events played an essential role in the expansion of the HcMYB gene family. Tissue-specific expression patterns of HcMYB genes displayed spatial and temporal expression. Furthermore, seven HcMYB (HcMYB7/8/75/79/145/238/248) were selected for further investigation. Through RT-qPCR, the response of candidates HcMYB genes toward jasmonic acid methyl ester (MeJA), abscisic acid (ABA), ethylene, and auxin was examined. Yeast one-hybrid (Y1H) assays revealed that candidate genes directly bind to the promoter of bottom structural volatile synthesis genes (HcTPS1, HcTPS3, HcTPS10, and HcBSMT2). Moreover, yeast two-hybrid (Y2H) assay showed that HcMYB7/8/75/145/248 interact with HcJAZ1 protein. In HcMYB7/8/79/145/248-silenced flowers, the floral volatile contents were decreased and downregulated the expression of key structural genes, suggesting that these genes might play crucial roles in floral scent formation in H. coronarium by regulating the expression of floral scent biosynthesis genes. Collectively, these findings indicate that HcMYB genes might be involved in the regulatory mechanism of terpenoids and benzenoid biosynthesis in H. coronarium.

scholarly journals An Early Calcium Loading during Cherry Tree Dormancy Improves Fruit Quality Features at Harvest

Horticulturae ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 135
Author(s):  
Michail Michailidis ◽  
Chrysanthi Polychroniadou ◽  
Maria-Anastasia Kosmidou ◽  
Dafni Petraki-Katsoulaki ◽  
Evangelos Karagiannis ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Sweet Cherry ◽  
Nutrient Management ◽  
Calcium Content ◽  
High Dose ◽  
Cherry Tree ◽  
Fruit Cracking ◽  
Calcium Loading ◽  
The Impact

The possible role of an early calcium application via sprays (0.25, 0.5 and 1M CaCl2) on dormant buds to improve sweet cherry (cv. Ferrovia) fruit quality at harvest was investigated. Fruit quality characteristics were also investigated in response to the age of spurs, the ripening stage, and their interactions. Results indicate that calcium enters the dormant flower buds and the phloem but not to the dormant vegetative buds. At harvest, the levels of Zn, Mn, and Cu were declined in fruits by increasing CaCl2 doses of sprays. Fruit respiratory activity was higher and on–tree fruit cracking was lower in red-colour (unripe) cherries as well as in fruit that was produced by 2-year-old short spurs or by Ca-treated buds. Differences in the sweet cherry skin metabolic profiles were identified. Fruit produced from Ca-exposed spurs exhibited lower levels of ribose and other cell-wall-related sugars and higher sucrose, maltose, and quininic acid levels. Nutrient shift was increased in red cherries, while anthocyanins were boosted in the black ones. PCA analysis was performed between the high dose of calcium spray and a control for mineral element content and cherry quality traits. This study illustrates that the high dose of calcium application during bud dormancy can effectively improve sweet cherry fruit characteristics, in terms of calcium content, cracking incidence, and fruit set. Overall, the present study contributes to a better understanding of the impact of calcium nutrition in fruit crops, which will provide references for alternative nutrient management and quality control in sweet cherry production.

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