Nectary photosynthesis contributes to the production of mānuka ( Leptospermum scoparium ) floral nectar.

2021 ◽  
Author(s):  
Michael J. Clearwater ◽  
Stevie T. Noe ◽  
Merilyn Manley‐Harris ◽  
Georgia‐Leigh Truman ◽  
Stephen Gardyne ◽  
...  
Keyword(s):  
Floral Nectar ◽  
Leptospermum Scoparium

Isolation of maltol glucoside from the floral nectar of New Zealand mānuka (Leptospermum scoparium)

2015 ◽  
Vol 174 ◽  
pp. 306-309 ◽  
Author(s):  
Christopher J. Adams ◽  
Megan N.C. Grainger ◽  
Merilyn Manley-Harris
Keyword(s):  
New Zealand ◽  
Floral Nectar ◽  
Leptospermum Scoparium

scholarly journals Influence of genotype, floral stage, and water stress on floral nectar yield and composition of mānuka (Leptospermum scoparium)

2018 ◽  
Vol 121 (3) ◽  
pp. 501-512 ◽  
Author(s):  
Michael J Clearwater ◽  
Maria Revell ◽  
Stevie Noe ◽  
Merilyn Manley-Harris
Keyword(s):  
Water Stress ◽  
Floral Nectar ◽  
Leptospermum Scoparium

scholarly journals Nectar non-protein amino acids (NPAAs) do not change nectar palatability but enhance learning and memory in honey bees

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Daniele Carlesso ◽  
Stefania Smargiassi ◽  
Elisa Pasquini ◽  
Giacomo Bertelli ◽  
David Baracchi
Keyword(s):  
Amino Acids ◽  
Learning And Memory ◽  
Honey Bees ◽  
Feeding Preference ◽  
Memory Retention ◽  
Floral Nectar ◽  
Olfactory Conditioning ◽  
Specific Memory ◽  
Protein Amino Acids ◽  
Valuable Compounds

AbstractFloral nectar is a pivotal element of the intimate relationship between plants and pollinators. Nectars are composed of a plethora of nutritionally valuable compounds but also hundreds of secondary metabolites (SMs) whose function remains elusive. Here we performed a set of behavioural experiments to study whether five ubiquitous nectar non-protein amino acids (NPAAs: β-alanine, GABA, citrulline, ornithine and taurine) interact with gustation, feeding preference, and learning and memory in Apis mellifera. We showed that foragers were unable to discriminate NPAAs from water when only accessing antennal chemo-tactile information and that freely moving bees did not exhibit innate feeding preferences for NPAAs. Also, NPAAs did not alter food consumption or longevity in caged bees over 10 days. Taken together our data suggest that natural concentrations of NPAAs did not alter nectar palatability to bees. Olfactory conditioning assays showed that honey bees were more likely to learn a scent when it signalled a sucrose reward containing either β-alanine or GABA, and that GABA enhanced specific memory retention. Conversely, when ingested two hours prior to conditioning, GABA, β-alanine, and taurine weakened bees’ acquisition performances but not specific memory retention, which was enhanced in the case of β-alanine and taurine. Neither citrulline nor ornithine affected learning and memory. NPAAs in nectars may represent a cooperative strategy adopted by plants to attract beneficial pollinators.

p-Hydroxyphenylpyruvate dioxygenase is a herbicidal target site for β-triketones from Leptospermum scoparium

2007 ◽  
Vol 68 (14) ◽  
pp. 2004-2014 ◽  
Author(s):  
Franck E. Dayan ◽  
Stephen O. Duke ◽  
Audrey Sauldubois ◽  
Nidhi Singh ◽  
Christopher McCurdy ◽  
...  
Keyword(s):  
Target Site ◽  
Leptospermum Scoparium

On the Function of Floral Nectar in Croton suberosus (Euphorbiaceae)

Oikos ◽  
1989 ◽  
Vol 56 (1) ◽  
pp. 109 ◽  
Author(s):  
César A. Domínguez ◽  
Rodolfo Dirzo ◽  
Stephen H. Bullock ◽  
Cesar A. Dominguez
Keyword(s):  
Floral Nectar

The origin of methylglyoxal in New Zealand manuka (Leptospermum scoparium) honey

2009 ◽  
Vol 344 (8) ◽  
pp. 1050-1053 ◽  
Author(s):  
Christopher J. Adams ◽  
Merilyn Manley-Harris ◽  
Peter C. Molan
Keyword(s):  
New Zealand ◽  
Leptospermum Scoparium
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