Volatile seed germination inhibitors from plant residues

Bradow, Judith M.; Connick, William J.

doi:10.1007/bf01016477

Cited by 99 publications

(44 citation statements)

References 40 publications

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“…With regard to allelopathic interactions, plant VOCs are able to generate oxidative stress (Zunino and Zygadlo 2004;Singh et al 2006). In addition, they can affect germination, root and shoot growth (Bradow and Connick 1990;Fischer et al 1994;Kong et al 2002;Singh et al 2002;Barney et al 2005), mitosis and cell size (Romagni et al 2000;Nishida et al 2005), chlorophyll content and fluorescence (Romagni et al 2000;Kong et al 2002;Singh et al 2002), mitochondrial respiration (Abrahim et al 2000(Abrahim et al , 2003Singh et al 2005), DNA synthesis (Nishida et al 2005), and gene expression in exposed plants ). Compared with VOC-mediated plant-plant interaction studies performed aboveground, the amount of published research on the roles played by root VOCs in plant-plant interactions is much lower.…”

Section: Studying Voc-mediated Root-root Interactions: Challenges Andmentioning

confidence: 99%

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

et al. 2016

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Background Aboveground, plants release volatile organic compounds (VOCs) that act as chemical signals between neighbouring plants. It is now well documented that VOCs emitted by the roots in the plant rhizosphere also play important ecological roles in the soil ecosystem, notably in plant defence because they are involved in interactions between plants, phytophagous pests and organisms of the third trophic level. The roles played by root-emitted VOCs in between-and withinplant signalling, however, are still poorly documented in the scientific literature. Scope Given that (1) plants release volatile cues mediating plant-plant interactions aboveground, (2) roots can detect the chemical signals originating from their neighbours, and (3) roots release VOCs involved in biotic interactions belowground, the aim of this paper is to discuss the roles of VOCs in between-and withinplant signalling belowground. We also highlight the technical challenges associated with the analysis of root-emitted VOCs and the design of experiments targeting volatile-mediated root-root interactions. Conclusions We conclude that root-root interactions mediated by volatile cues deserve more research attention and that both the analytical tools and methods developed to study the ecological roles played by VOCs in interplant signalling aboveground can be adapted to focus on the roles played by root-emitted VOCs in between-and within-plant signalling.

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Section: Studying Voc-mediated Root-root Interactions: Challenges Andmentioning

confidence: 99%

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

et al. 2016

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“…), the rus t y grain beetle, Cryptolestes ferrugineus (Stephens), the flat grain beetle, C. pusillus (Schonherr) and the tropical bont tick, Amblyomma variegaturn F. (Pierce et al 1990;Mushobozy et al 1993;Turker et al 1993;Steullet and Guerin 1994;Torto et al 1996;Assad et al 1997;Quiroz and Niemeyer 1998). Nonanal in the volatiles of plants acts as an allelochernic that inhibits seed germination (Bradow and Connick 1990) and probably serves in defence against pathogens and phytophagous insects due to its antifungal properties (Andersen et al 1994) as well as cytotoxic and genotoxic effects (Eck1 et al 1993;Martelli et al 1994). The effect of nonanal in decreasing polymerisation of brain microtubular protein (Miglietta et al 1991), possibly renders it extremely toxic to I. pini which inhabits dead trees where toxic volatiles would be relatively low.…”

Section: Ob) Detection Of Tram-verbenol From the Volatiles Of Poolmentioning

confidence: 99%

Dynamics of pheromone production and communication in the mountain pine beetle, Dendroctonus ponderosae Hopkins, and the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae)

Pureswaran¹,

Gries²,

Borden³

et al. 2000

Chemoecology

115

116

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“…One possible mechanism that could explain both the residue's inhibitory effect on emergence and early plant growth as well as its differential effect on crop and weed growth is allelopathy. Inhibition of seed germination and early growth of seedlings by compounds derived from crimson clover has been demonstrated under laboratory conditions (Bradow and Connick, 1990;White et al, 1989). Moreover, sensitivity to allelochemicals derived from the clover has been shown to vary among species: White et al (1989), for example, found aqueous extracts of the clover to more negatively affect radicle development of two broad-leaved weed species than that of corn.…”

Section: Other Possible Causes Of the Suppressive Effect Of Crimson Cmentioning

confidence: 99%

Soil fertility management as a factor in weed control: the effect of crimson clover residue, synthetic nitrogen fertilizer, and their interaction on emergence and early growth of lambsquarters and sweet corn

Dyck

Liebman

1994

Plant Soil

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Previous experiments have shown that crimson clover (Trifolium incarnatum L.) used as a green manure may supply weed control benefits as well as nitrogen (N) to a subsequent crop of corn (Zea mays L.). In contrast to use of synthetic N fertilizer, use of fresh, incorporated crimson clover residue as an N source has been found to suppress lambsquarters (Chenopodium album L.) aboveground drymatter accumulation but to only temporarily reduce that of sweet corn. One possible cause of the clover's suppressive effect is the initial low availability of N that may occur after residue incorporation in the soil. A factorial treatment combination of +/-crimson clover residue and four rates of N fertilizer was used in two field experiments to further document the clover's influence on early plant growth and development and to test the hypothesis that low initial N availability is responsible for the clover's previously observed suppressive effects. The presence of crimson clover residue was found to reduce total emergence of lambsquarters by 27%, while application of N fertilizer increased lambsquarters emergence by almost 75%. Lambsquarters emergence was also delayed by the residue treatment. Addition of N did not alleviate the clover's suppressive effect on total emergence or emergence rate of lambsquarters. Sweet corn emergence and emergence rate differed by less than 5% in 0 N/+residue and 0 N/-residue treatments. Applications of N to residue plots suppressed rather than enanced sweet corn emergence. Lambsquarters aboveground biomass accumulation was 46% lower in the residue than nouresidue treatments at 23 days after planting (DAP) and remained 26% lower at 53 DAP. Addition of N did not alleviate the suppressive effect of the clover residue on lambsquarters aboveground drymatter accumulation. Sweet corn aboveground biomass accumulation was not affected by the presence of the clover residue. The results of the experiments indicate that the suppressive effect of crimson clover residue on lambsquarters emergence and growth is not attributable to initial low availability of N. However, given the stimulatory effect of N fertilizer on lambsquarters development, use of crimson clover as an N source would appear to provide weed control benefits both as a direct suppressant of weed emergence and growth and as a substitute for fertilizer N.

show abstract

Volatile seed germination inhibitors from plant residues

Cited by 99 publications

References 40 publications

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

Root-emitted volatile organic compounds: can they mediate belowground plant-plant interactions?

Dynamics of pheromone production and communication in the mountain pine beetle, Dendroctonus ponderosae Hopkins, and the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae)

Soil fertility management as a factor in weed control: the effect of crimson clover residue, synthetic nitrogen fertilizer, and their interaction on emergence and early growth of lambsquarters and sweet corn

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