geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Temperature-driven flower longevity in a high-alpine species of Oxalis influences reproductive assurance


, : Temperature-driven flower longevity in a high-alpine species of Oxalis influences reproductive assurance. New Phytologist 200(4): 1260-1268

How high-alpine plants confront stochastic conditions for animal pollination is a critical question. We investigated the effect of temperature on potential flower longevity (FL) measured in pollinator-excluded flowers and actual FL measured in pollinated flowers in self-incompatible Oxalis compacta and evaluated if plastically prolonged potential FL can ameliorate slow pollination under cool conditions. Pollinator-excluded and hand-pollinated flowers were experimentally warmed with open-top chambers (OTCs) on a site at 3470 m above sea level (asl). Flower-specific temperatures, and pollinator-excluded and open-pollination flower life-spans were measured at six alpine sites between 3100 and 3470 m asl. Fruit set was analyzed in relation to inferred pollination time. Warming reduced potential FL. Variable thermal conditions across the alpine landscape predicted potential and actual FL; flower senescence was pollination-regulated. Actual FL and potential FL were coupled. Prolonged potential FL generally increased fruit set under cooler conditions. Plastic responses permit virgin flowers of O. compacta to remain open longer under cooler temperatures, thereby ameliorating slow pollination, and to close earlier when pollination tends to be faster under warmer conditions. Plastic potential FL provides adaptive advantages in the cold, thermally variable alpine habitat, and has important implications for reproductive success in alpine plants in a warming world.

US$19.90

PMID: 23952472

DOI: 10.1111/nph.12443


Other references

Offner, G., 1983: Significance of transplantation in children using organs from related donors. During a 5 year period (1976-1981) 73 kidney transplantations in children were performed in the Medical School Hannover. 23 were from live related donors (LD) and 50 from cadaver donors (CAD). In the LD group the waiting time was shorter and the k...

Freixinet, J.; Embún, Rúl.; Rodríguez, P., 2017: Current Indications For Surgical Treatment of Lung Metastases. Archivos de Bronconeumologia

Strobel, D.; Goertz, R.S.; Bernatik, T., 2012: Diagnostics in inflammatory bowel disease: ultrasound. Diagnosis of chronic inflammatory bowel diseases (IBD) is based on a combination of clinical symptoms, laboratory tests and imaging data. Imaging of the morphological characteristics of IBD includes the assessment of mucosal alterations, transmura...

Clara, M.; Kreuzinger, N.; Strenn, B.; Gans, O.; Kroiss, H., 2005: The solids retention time - a suitable design parameter to evaluate the capacity of wastewater treatment plants to remove micropollutants. Micropollutants as endocrine disrupting compounds (EDC) or pharmaceuticals are of increased interest in water pollution control. Wastewater treatment plant (WWTP) effluents are relevant point sources for residues of these compounds in the aquatic...

Sharma, G.; Trussell, H.J., 1997: Set theoretic signal restoration using an error in variables criterion. The restoration of a signal degraded by a stochastic impulse response is formulated as a problem with uncertainties in both the measurements and the impulse response. The method of total least squares, and variants thereof, are effective technique...

Gabaldon, A., 1985: Possibility of the eradication of schistosomiasis in Venezuela. A plan for the eradication of schistosomiasis from Venezuela is presented. After a short introduction on the epidemiological considerations in Venezuela, control methods are described under the following headings: geographical considerations, habi...

Zhao,H.L.; Houweling,A.H.; Vanstone,C.A.; Jew,S.; Trautwein,E.A.; Duchateau,G.S.M.J.E.; Jones,P.J.H., 2008: Genetic variation in ABC G5/G8 and NPC1L1 impact cholesterol response to plant sterols in hypercholesterolemic men. ATP-binding cassette hetero-dimeric transporters G5 and G8 (<i>ABCG5/G8</i>) have been postulated to mediate intestinal cholesterol efflux, whereas Niemann-Pick C1 Like 1 (NPC1L1) protein is believed to be essential for intestinal chol...

Schlachta, C.M.; Poulin, E.C.; Mamazza, J., 1999: Laparoscopic splenectomy for hematologic malignancies. Patients with hematologic malignancy (HM) tend to have large spleens. The purpose of this study was to compare the outcomes of laparoscopic splenectomy for patients with HM to those with benign disease (BD). A review was conducted of a prospective...

Colyer, M.H.; Chun, D.W.; Bower, K.S.; Dick, J.S.B.; Weichel, E.D., 2008: Perforating globe injuries during operation Iraqi Freedom. To report the injury patterns associated with perforating (through-and-through) injuries of the globe and the visual impact of these injuries on patients with combat ocular trauma (COT) seen at Walter Reed Army Medical Center (WRAMC) from March 20...

Blunden R., 1990: Services for people with learning difficulties and challenging behavior a brief review of recent developments. International Review of Psychiatry 2(1): 5-10