Influence of Carbohydrate and Nitrate-Nitrogen Nutrition on Development of Hypocotyledonary Buds in Flax

Eggers, Virginia

doi:10.1086/335362

Cited by 5 publications

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“…Growth of a weed is influenced by the crop as well and shading was found to reduce adventitious bud formation on the hypocotyl of Linum usitatissimum (Eggers 1946). Thus, the necessary next step in understanding the weedy status of adventitiously sprouting annuals is to examine their growth in the field.…”

Section: Implications For Weed Managementmentioning

confidence: 99%

“…However, the ability of annuals to form buds de novo and regenerate vegetatively from them was not sufficiently studied to evaluate its potential role in the weediness of such species. The few experiments done so far were focused predominantly on regeneration of Rorippa palustris from root fragments (Martínková et al 2004a(Martínková et al ,b, 2006Klimešová et al 2007) or Linum usitatissimum and Euphorbia geniculata from the hypocotyl (Adams 1924;Crooks 1933;Rauh 1937;Eggers 1946;Link & Eggers 1946;Kigel et al 1992; 924 V. Latzel et al Ishikawa et al 1997). Experiments with Rorippa palustris found that plants that regenerated from root fragments can finish their life cycle and even produce more seeds than plants regenerating from seeds .…”

Section: Introductionmentioning

confidence: 99%

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Annuals sprouting adventitiously from the hypocotyl: their compensatory growth and implications for weed management

2009

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Habitats, disturbed severely at least once a year, are often dominated by annual plants, which avoid disturbance by means of a short life span and massive production of seeds. Contrary to perennials, they lack pools of reserve meristems on and storage carbon in below-ground organs necessary for vegetative regeneration after disturbance. However, some annuals are able to initiate a bud bank on the hypocotyl after loss of their shoot.In three experiments, we investigated how the timing of disturbance or population origin affects adventitious bud formation on the hypocotyl for regeneration and compensatory growth in some annual weeds. The best regenerative abilities were observed in Kickxia spuria and K. elatine, with 87% and 80% of individuals regenerating, respectively, followed by Microrrhinum minus with almost 70%. Less than 30% of individuals regenerated in Euphorbia peplus and Anagallis arvensis. The time of injury did not affect the regeneration capacity of species for which the timing was examined, nor their consequent compensatory growth. The best compensation for biomass and fruit production was observed in M. minus, albeit two populations differed in this respect. The injured plants were shorter and produced more shoots than intact plants. Mechanical control of weeds capable of forming adventitious buds on hypocotyl by harrowing, brushing, or cutting may not be sufficient in organically farmed lands.

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Section: Implications For Weed Managementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Annuals sprouting adventitiously from the hypocotyl: their compensatory growth and implications for weed management

2009

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“…On the other hand, vigour and compensation ability of regenerated root sprouting plants are in contrast to resprouting success supported by nutrient-rich conditions (Martı ´nkova ´et al, 2004a(Martı ´nkova ´et al, , b, 2008. Thus, we may hypothesize that good growing conditions (high nitrogen, sufficient moisture and illumination) will support regeneration by adventitious sprouting in monocarpic short-lived herbs in contrast to resprouters in fire-prone areas (see also Eggers, 1946). Additionally, as biennials usually have the ability to postpone reproduction to later seasons Martı ´nkova ´et al, 2008), they possess larger carbon storage (Sosnova ´and Klimes ˇova ´, 2009) and during a longer life cycle can experience more disturbance events than annuals.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of adventitious sprouting in short-lived monocarpic herbs: a field study of 22 weedy species

2010

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“…Anatomical studies of adventitious-bud formation on the hypocotyl of Linum usitatissimum L. (Adams 1924;Crooks 1933;Rauh 1937;Eggers 1946;Link and Eggers 1946;Ishikawa et al 1997) show that sprouting ability diminishes with aging (Crooks 1933;Rauh 1937;Link and Eggers 1946). Moreover, biennials are able to postpone reproduction to the next season when there has been severe disturbance Martínková et al 2008;Piippo et al 2009), whereas strict annuals are not able to do so, and therefore, a late disturbance might hinder seed ripening despite successful regeneration of plants.…”

Section: Introductionmentioning

confidence: 99%

Compensatory growth of Euphorbia peplus regenerating from a bud bank

Latzel

Malíková

Klimešová

2011

Botany

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Tolerance to very severe disturbance by the annual herb Euphorbia peplus L. was examined. We explored the role of disturbance timing, competition, and site productivity on the performance of disturbed plants. Ninety-three percent of disturbed plants survived following disturbance 14 d after plant emergence, whereas only 48% of disturbed plants survived disturbance 42 d after emergence. Early disturbed plants compensated for biomass loss and had higher fecundity than undisturbed plants, but this was not the case for plants that were disturbed at later times following emergence. Field assessment revealed that disturbed plants were, in general, of the same height as undisturbed plants, even under competition. Undisturbed plants had very conservative architecture across various conditions (competition and nutrients), whereas disturbed plants had more branched architecture under moderate competition and nutrient availability. Accordingly, we suggest that E. peplus utilizes a bet-hedging strategy where adventitious meristems are reserved for regrowth after a severe disturbance event that removes all dormant axillary meristems. Moreover, we propose that the tolerance to disturbance in short-lived species could play an important role in the ecology of disturbed communities. Finally, the tolerance to disturbance could be one of the prerequisites of invasibility of E. peplus in non-native ranges. We also speculate about the potential costs and benefits related with the tolerance to disturbance in short-lived species and about a mechanical control of E. peplus in invaded ranges.Résumé : Les auteurs ont examiné la tolérance aux perturbations sévères chez l'herbacée annuelle Euphorbia peplus. Ils ont exploré le rôle du moment de la perturbation, de la compétition, et de la productivité du site sur la performance des plantes dérangées. Quatre-vingt-treize pour cent des plantes dérangées survivent à une perturbation survenant 14 jours après l'émer-gence, alors que seulement 48% des plantes dérangées survivent à une perturbation survenant 42 jours après l'émergence. Les plantes dérangées précocement compensent la biomasse perdue et montrent une meilleure fécondité que les plantes non perturbées, mais ceci n'est pas le cas chez les plantes dérangées plus tard après leur émergence. Les données prises sur le terrain révèlent que les plantes perturbées sont, en général, de la même hauteur que les plantes non perturbées, même sous l'effet de la compétition. Les plantes non perturbées montrent une architecture conservatrice sous diverses conditions (compétition et nutriments) alors que les plantes dérangées exhibent une architecture plus ramifiée sous une compétition et une disponibilité des nutriments modérées. Conséquemment, les auteurs suggèrent que l'E. peplus utilise une stratégie de plasticité développementale où des méristèmes adventifs sont réservés à une reprise de croissance, suite à une perturbation sévère, même celle conduisant à la perte de tous les bourgeons axillaires dormants. De plus, les auteurs proposent que la tolé...

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Influence of Carbohydrate and Nitrate-Nitrogen Nutrition on Development of Hypocotyledonary Buds in Flax

Cited by 5 publications

References 0 publications

Annuals sprouting adventitiously from the hypocotyl: their compensatory growth and implications for weed management

Annuals sprouting adventitiously from the hypocotyl: their compensatory growth and implications for weed management

Occurrence of adventitious sprouting in short-lived monocarpic herbs: a field study of 22 weedy species

Compensatory growth of Euphorbia peplus regenerating from a bud bank

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