The Effect of Lectins on Germinating Pollen of Lilium Longiflorum I. Effect on Pollen Germination, Pollen Tube Growth and Organization of Microfilaments

Pierson, Elisabeth S.; Willekens, P. G. M.; Maessen, M.; Helsper, J.P.F.G.

doi:10.1111/j.1438-8677.1986.tb01287.x

Cited by 5 publications

(2 citation statements)

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“…In summary, the interaction of Con A with pollen tubes of Lilium longiflorum leads to reactions that strongly affect the growth rate (see also PIERSON et al 1986, this issue) and thus the fertilization potency of sensitive pollen. Similar regulatory processes may occur in the incompatibilty response as result of pollen-pistil interactions.…”

Section: Discussionmentioning

confidence: 97%

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The Effect of Lectins on Germinating Pollen of Lilium Longiflorum Ii. Effect of Concanavalin a on Phospholipid Turnover and on Biosynthesis of Pectic Polysaccharides

Helsper

Pierson

1986

Acta Botanica Neerlandica

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The present study describes the effect of Concanavalin A (Con A, 200 Jlg/ml) on phospholipid turnover and on the biosynthesis of pectic polysaccharides in germinating pollen of Lilium longiflorum. Both phenomena are directly involved in pollen tube growth. The turnover rate of phospholipids was reduced with about 50% by the presence of Con A during the first 4 hours of germination. When Con A was added after 4 hours of incubation in the absence of lectin, a sudden shift of tritium label was observed from phospholipids to 1,2-diacylglycerol. This shift is probably due to inhibition of phospholipid synthesis during the turnover process, while degradation continues. The biosynthesis of pectic polysacharides was also inhibited with about 50% upon addition of Con A either at the onset of germination or to actively growing pollen tubes which were preincubated for 4 hours in the absence oflectin.

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Section: Discussionmentioning

confidence: 97%

“…In an accompanying study (PIERSON et al 1986, this issue) we showed that Con A treatment results in inhibition of'in vitro' germination and tube growth in pollen of Lilium longiflorum and in disorganization of microfilaments in the pollen tube.…”

Section: Introductionmentioning

confidence: 93%