Mycorrhiza and Repeated Drought Exposure Affect Drought Resistance and Extraradical Hyphae Development of Pepper Plants Independent of Plant Size and Nutrient Content

doi:10.1016/S0176-1617(11)80339-1

Journal of Plant Physiology

Volume 139, Issue 3, January 1992, Pages 289-294

https://doi.org/10.1016/S0176-1617(11)80339-1 Get rights and content

Summary

Pepper (Capsicum annuum L.) plants with and without VA-mycorrhiza (formed by the fungus Glomus deserticola Trappe, Bloss & Menge), VAM, and NVAM, respectively, were drought acclimated (DA) by four drought cycles or kept well watered (NDA). All plants were then subjected to an additional drought cycle. Similar shoot mass and leaf area were achieved in all treatments by giving more P fertilizer to NVAM than VAM plants. With few exceptions, leaf nutrient concentrations of 12 elements, including P, were either equal or higher in NVAM than VAM plants. During peak drought stress, plants with the combination of VAM-DA treatments had the greatest drought resistance, as indicated by the highest leaf water potential, turgor, relative water content and frequency of non-wilted plants. Some drought resistance, as indicated by intermediate frequency of wilting, occurred when VAM or DA were applied singly. Nutrition and plant size were not associated with this drought resistance. Extraradical hyphae development and soil aggregation of VAM plants were enhanced by drought acclimation, suggesting that these hyphae improved drought resistance by facilitating soil water uptake.

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Mycorrhiza and Repeated Drought Exposure Affect Drought Resistance and Extraradical Hyphae Development of Pepper Plants Independent of Plant Size and Nutrient Content

Summary

Soil Biol. and Biochem.

Influence of vesicular-arbuscular mycorrhizae on water movement through Bouteloua gracilis (H.B.K.) Lag Ex Steud

New Phytol.

Phytohormone changes in Bouteloua gracilis infected by vesicular-arbuscular mycorrhizae. II. Altered levels of gibberellin-like substances and abscisic acid in the host plant

Can. J. Bot.

Osmotic adjustment in leaves of VA mycorrhizal and non-mycorrhizal rose plants in response to drought stress

Plant Physiol.

Greater leaf conductance of well-watered VA mycorrhizal rose plants is not related to phosphorus nutrition

New Phytol.

Crop water deficits

Adv. in Agron.

Effects of drought on host and endophyte development in mycorrhizal soybeans in relation to water use and phosphate uptake

Physiol. Plant.

Growth, nutrition and gas exchange of bromis inermis inoculated with Glomus fasciculatum

New. Phytol.

Isopiestic technique for measuring leaf water potentials with a thermocouple psychrometer

Proc. Natl. Acad. Sci.

How much can we lose?

Agrichem. Age

Functioning of vesicular-arbuscular mycorrhizas under field conditions

New Phytol.

Water relations of red clover Trifolium pratense L. as affected by VA mycorrhizal infection and phosphorus supply before and during drought

J. Exper. Bot.

Development of external hyphae by different isolates of mycorrhizal Glomus spp. in relation to root colonization and growth of Troyer citrange

New Phytol.

Influence of vesicular arbuscular mycorrhiza on the hydraulic conductivity of roots of two Citrus rootstocks

New Phytol.

Water relations of mycorrhizal and phosphorus-fertilized non-mycorrhizal Citrus under drought stress

New Phytol.

The effect of removal of extraradical hyphae on water uptake by vesicular-arbuscular mycorrhizal plants

New Phytol.

The influence of vesicular-arbuscular mycorrhiza on growth and water relations of red clover. I. In phosphate deficient soil

New Phytol.

Development of external hyphae by different isolates of mycorrhizal _{Glomus spp.} in relation to root colonization and growth of Troyer citrange