Association of cone thermogenesis and volatiles with pollinator specificity in Macrozamia cycads

Terry, Irene; Moore, C. J.; Walter, Gimme H.; Forster, Paul I.; Roemer, R. B.; Donaldson, James A.; Machin, Peter J.

doi:10.1007/s00606-003-0087-x

Cited by 96 publications

(126 citation statements)

References 38 publications

Supporting

Mentioning

120

Contrasting

Unclassified

Order By: Relevance

“…The thrips breed only in the cycad male cones, and populations in these have been estimated as totalling 50 000 individuals in a single cone. However, the adult thrips are attracted to female cones for a short period when these are mature, apparently in response to chemical signals that are similar to those emitted by male cones (Terry 2001;Terry et al 2004), and the thrips have been calculated to deliver into a female cone an equivalent of 5000 pollen grains per ovule (Mound & Terry 2001). These observations in Australia are entirely novel for the Cycadopsida, worldwide, and may indicate that thrips were one of the earliest insect groups involved in pollination (Terry 2002).…”

Section: Floristic Associationsmentioning

confidence: 99%

Australian Thysanoptera – biological diversity and a diversity of studies

Mound

2004

Australian Journal of Entomology

View full text Add to dashboard Cite

Studies in Australia on thrips have had extensive impacts worldwide. In behaviour, the latest definition of eusociality is derived from work on the radiation of thrips on Acacia species in central Australia, and these Acacia thrips also having been used to develop the concept of 'model clades' for analysing the evolution of behavioural and ecological diversity. In ecology, the concept of the lack of density dependent factors in population dynamics was elaborated through studies on the plague thrips of southern Australia. In virology, thrips were first shown in Australia to be the vectors of tospoviruses, although these viruses, their vectors and the plants attacked are all non-native to this continent. Work in Australia has included the development of electronic methods of illustration, identification and information transfer about thrips, including the use of molecular methods for pest species recognition, and considerable advances have been made in Australia in our knowledge of the relationships between thrips and plants, from polyphagy to pollination.

show abstract

Section: Floristic Associationsmentioning

confidence: 99%

Australian Thysanoptera – biological diversity and a diversity of studies

Mound

2004

Australian Journal of Entomology

View full text Add to dashboard Cite

show abstract

“…Cycadothrips are in a basal thysanopteran family, proposed as arising by at least the Cretaceous (3). Thrips are primarily found on male cones, which provide food (pollen) for adults and larvae (2,4). During pollination, male and female Macrozamia lucida cones self-heat daily, up to 12°C above ambient temperatures between the hours of~1100 and 1500, when nearly a millionfold increase in male volatile emissions occurs [females reach~one-fifth that amount (4)].…”

mentioning

confidence: 99%

“…1, B and C): b-myrcene (>90% of total emissions during thermogenesis) and (E)-b-ocimene (2%), which change postthermogenesis (4,5), and allo-ocimene (~2%) (5). Y-tube tests at ecological concentrations of these chemicals (5) showed that ocimenes attract thrips ( fig.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Odor-Mediated Push-Pull Pollination in Cycads

Terry

Walter

Moore

et al. 2007

Science

150

125

View full text Add to dashboard Cite

The reproductive organs of some plants self-heat, release scent, and attract pollinators. The relations among these processes are not well understood, especially in the more ancient, nonflowering gymnosperm lineages. We describe the influence of plant volatiles in an obligate pollination mutualism between an Australian Macrozamia cycad (a gymnosperm with male and female individuals) and its specialist thrips pollinator, Cycadothrips chadwicki. Pollen-laden thrips leave male cycad cones en masse during the daily thermogenic phase, when cone temperatures and volatile emissions increase dramatically and thrips are repelled. As thermogenesis declines, total volatile emissions diminish and cones attract thrips, resulting in pollination of female cones. Behavioral and electrophysiological tests on thrips reveal that variations in b-myrcene and ocimene emissions by male and female cones are sufficient to explain the observed sequential thrips' repellence (push) and attraction (pull). These dynamic interactions represent complex adaptations that enhance the likelihood of pollination and may reflect an intermediate state in the evolution of biotic pollination.

show abstract

“…It is important to note that the difference was more pronounced with volatiles from the infested plants ( Figure 2C). Plant volatiles are known to have numerous functions, such as attracting herbivores [11,12] and/or carnivorous natural enemies of herbivores [3,4,7], repelling herbivores [13,14], and attracting pollinators [15,16], to name a few. Here, we suggest an additional function: Plant volatiles may affect the diurnal and nocturnal behavior of herbivores.…”

Section: Discussionmentioning

confidence: 99%

Perinatal Androgens and Adult Behavior Vary with Nestling Social System in Siblicidal Boobies

2016

Animal Behavior

View full text Add to dashboard Cite

Although many organisms show daily rhythms in their activity patterns, the mechanistic causes of these patterns are poorly understood. Here we show that host plant volatiles affect the nocturnal behavior of the caterpillar Mythimna separata. Irrespective of light status, the caterpillars behaved as if they were in the dark when exposed to volatiles emitted from host plants (either uninfested or infested by conspecific larvae) in the dark. Likewise, irrespective of light status, the caterpillars behaved as if they were in the light when exposed to volatiles emitted from plants in the light. Caterpillars apparently utilize plant volatile information to sense their environment and modulate their daily activity patterns, thereby potentially avoiding the threat of parasitism.Citation: Shiojiri K, Ozawa R, Takabayashi J (2006) Plant volatiles, rather than light, determine the nocturnal behavior of a caterpillar. PLoS Biol 4(6): e164.

show abstract

Association of cone thermogenesis and volatiles with pollinator specificity in Macrozamia cycads

Cited by 96 publications

References 38 publications

Australian Thysanoptera – biological diversity and a diversity of studies

Australian Thysanoptera – biological diversity and a diversity of studies

Odor-Mediated Push-Pull Pollination in Cycads

Perinatal Androgens and Adult Behavior Vary with Nestling Social System in Siblicidal Boobies

Contact Info

Product

Resources

About