Summary
Three scales of wound-induced chemical responses in plants are identified: (1) highly localised chemical changes associated with disruption of cell compartmentation; (2) changes induced in cells surrounding the damaged area, forming a kind of halo around the damage, and (3) more widely-dispersed changes which may affect an entire organ, branch or plant. A brief review of the literature reveals that such chemical responses are very widespread in plants, and many of the substances formed are known to affect adversely the growth, development, or reproduction of insects. It is argued that wound-induced changes in plant chemistry represent for insects a powerful selective pressure for the dispersal of grazing. Levels and patterns of invertebrate grazing in a range of herbaceous and deciduous woody plants sampled at the end of the growing seasons were examined. Leaves of many species exhibited a strikingly evident over-dispersion of grazing initiations, and in some cases the arrangement of holes appeared close to regularity. The pattern of damage between leaves was, in most cases, heavily biased towards a large proportion of leaves receiving a low level of grazing. These highly dispersed patterns of grazing damage are consistent with the hypothesis that wound-induced responses play an important role in determining patterns of insect feeding. They have important implications for the expected levels of insect exploitation of host plants and for the advantages to the plant of distributing grazing damage evenly through the canopy.
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References
Barz W, Köster J (1981) Turnover and degradation of secondary (natural) products. In: Conn EE (ed) The biochemistry of plants, vol. 7 Secondary plant products. Academic Press, New York. pp 35–84
Beck AB (1964) The oestrogenic isoflavones of subterranean clover. Aust J Agr Res 15:223–230
Beck SD, Reese JC (1976) Insect-plant interactions: nutrition and metabolism. Recent Advan Phytochem 10:41–92
Benz G (1977) Insect induced resistance as a mean of self defence in plants. Eucarpia/IOBC Working Group Breed Resistance Insects Mites. B 11 SROP 1977/8 Report, 155-159
Bray JR, Gorham E (1964) Litter production in forests of the world. Advan Ecol Res 2:101–157
Carroll CR, Hoffmann CA (1980) Chemical feeding deterrent mobilised in response to insect herbivory and counteradaptation by Epilachna tredecemnotata. Science 209:414–416
Chapman RF (1974) The chemical inhibition of feeding by phytophagous insects: a review. Bull Entomol Res 64:339–363
Clark PJ, Evans FC (1954) Distance to nearest neighbour as a measure of spatial relationships in population ecology. 35:445–453
Deverall BJ (1977) Defense mechanisms in plants. Cambridge University Press, London, New York
Edwards P (1977) Studies of mineral cycling in a montane rain forest in New Guinea II. The production and disappearance of litter. J Ecol 65:971–992
Edwards PJ, Wratten SD (1982) Wound-induced changes in palatability in birch (Betula pubescens Ehrh. ssp. pubescens). Amer Natur 120:816–818
Farkas GL, Kiraly Z (1962) Role of phenolic compounds in the physiology of plant diseases and disease resistance. Phytopathol Z 44:105–150
Friend J (1981) Plant phenolics lignification and plant disease. Progr Phytochem 7:197–261
Ghent AW (1960) A study of the group-feeding behaviour of the larvae of the Jack pine sawfly Neodiprion pratti banksianae Roh. Behaviour 16:110–148
Green TR, Ryan CA (1972) Wound-induced proteinase inhibitor in plant leaves: a possible defense mechanism against insects. Science 175:776–777
Haukioja E, Niemelä P (1976) Does birch defend itself actively against herbivores? Rep Kevo Subarct Res Sta 13:44–47
Haukioja E, Niemelä P (1977) Retarded growth of a geometrid larva after mechanical damage to leaves of its host tree. Ann Zool Fenn 14:48–52
Haukioja E, Niemelä P (1979) Birch leaves as a resource for herbivores: seasonal occurrence of increase resistance in foliage after mechanical damage of adjacent, leaves. Oecologia (Berlin) 39:151–159
Heinrich B (1979) Foraging strategies of catepillars. Oecologia (Berlin) 42:325–337
Hori K (1973) Studies on the feeding habits of Lygus disponsi Linnavuori (Hemiptera: Mirides) and the injury to its host plant. III Phenolic compounds, acid phosphatase and oxidative enzymes in the injured tissue of sugar beet leaf. Appl Entomol Zool 8:103–112
Hori K, Atalay R (1980) Biochemical changes in the tissue of chinese cabbage injured by the bug Lygus disponsi. Appl Entomol Zool 15:234–241
Hösel W (1981) Glycosylation and glycosidases. In: Conn EE (ed) The biochemistry of plants, vol 7. Secondary plant products. Academic Press, New York, pp 725–753
Jones DA (1972) Cyanogenic glycosides and their function. In: Harborne JB (ed) Phytochemical ecology. Academic Press, New York — London, pp 103–122
Kareiva P (1982) Experimental and mathematical analyses of herbivore movement: quantifying the influence of plant spacing and quality on foraging discrimination. Ecol Monogr 52:261–282
Levin DA (1971) Plant phenolics: an ecological perspective. Amer Natur 105:157–181
Loper GM (1968) Effect of aphid infestation on the coumestrol content of alfalfa varieties differing in aphid resistance. Crop Sci 8:104–106
Luckner M, Diettrich B, Lerbs W (1980) Cellular compartmentation and channelling of secondary metabolism in microorganisms and higher plants. Progr Phytochem 6:103–142
Miles PW (1968) Insect secretions in plants. Ann Rev Phytopathol 6:137–164
Morisita M (1962) Iγ-index, a measure of dispersion of individuals. Researches Popul Ecol Kyoto Univ 4:1–7
Niemelä P, Aro EM, Haukioja E (1979) Birch leaves as a resource for herbivores. Damage-induced increase in leaf phenols with trypsin-inhibiting effects. Rep Kevo Subarct Res Sta 15:37–40
Rhoades DF (1979) Evolution of plant chemical defense against herbivores. In: Rosenthal GA, Janzen DH (eds) Herbivores: Their interaction with secondary plant metabolites. Academic Press, New York — London, pp 3–54
Ryan CA (1979) Proteinase inhibitors. In: Rosenthal GA, Janzen DH (eds) Herbivores: Their interaction with secondary plant metabolites. Academic Press, New York — London, pp 599–618
Seigler DS (1977) The naturally occurring cyanogenic glycosides. Progr Phytochem 4:83–120
Seigler D, Price PW (1976) Secondary compounds in plants: primary functions. Amer Natur 110:101–103
Sherwood RT, Olah AF, Oleson WH, Jones EE (1970) Effect of disease and injury on accumulation of a flavonoid estrogen coumestrol, in alfalfa. Phytopathology 60:684–688
Southwood TRE (1962) Migration of terrestrial arthropods in relation to habitat. Biol Rev Cambridge Phil 37:171–214
Thielges BA (1968) Altered polyphenol metabolism in the foliage of Pinus sylvestris associated with European pine sawfly attack. Can J Bot 46:724–725
Thompson HR (1956) Distribution of distance to nth nearest neighbour in a population of randomly distributed individuals. Ecology 37:391–394
Uritani I (1978) Biochemistry of host response to infection. Progr Phytochem 5:29–63
Walker-Simmons M, Ryan CA (1977) Wound-induced accumulation of trypsin inhibitor activities in plant leaves. Plant Physiol 59:437–439
Whittaker RH, Woodwell GM (1969) Structure, production and diversity of the oak-pine forest at Brookhaven, New York J Ecol 56:1–25
Woodhead S, Bernays E (1977) Changes in release rates of cyanide in relation to palatability of Sorghum to insects. Nature (London) 270:235–236
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Edwards, P.J., Wratten, S.D. Wound induced defences in plants and their consequences for patterns of insect grazing. Oecologia 59, 88–93 (1983). https://doi.org/10.1007/BF00388079
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DOI: https://doi.org/10.1007/BF00388079