Ozone-induced reductions in below-ground biomass: An anatomical approach in potato
Asensi-Fabado, A; Garcia-Breijo, FJ; Reig-Arminana, J
HERO ID
644360
Reference Type
Journal Article
Year
2010
Language
English
PMID
| HERO ID | 644360 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | Ozone-induced reductions in below-ground biomass: An anatomical approach in potato |
| Authors | Asensi-Fabado, A; Garcia-Breijo, FJ; Reig-Arminana, J |
| Journal | Plant, Cell and Environment |
| Volume | 33 |
| Issue | 7 |
| Page Numbers | 1070-1083 |
| Abstract | Potato plants were grown in open-top chambers under three ozone concentrations during two complete cropping seasons (93 and 77 d in 2004 and 2005, respectively). The effects of chronic exposure to ozone on leaf anatomy, cell ultrastructure and crop yield were studied. Severe cell damage was found, even at ambient ozone levels, mainly affecting the spongy parenchyma and areas near the stomata. Damage to the cell wall caused loss of cell contact, and loss of turgor pressure due to tonoplast disintegration, contributed to cell collapse. Phloem sieve plates were obstructed by callose accumulation, and damaged mesophyll cells increased their starch stores. Tuber yield fell sharply (24-44%), due to the biggest tubers becoming smaller, which affected commercial yield. These anatomical findings show the mechanisms of ozone effect on assimilate partitioning, and thus crop yield decrease, in potato. Further implications of ozone causing reductions in below-ground biomass are also discussed. |
| Doi | 10.1111/j.1365-3040.2010.02128.x |
| Pmid | 20199628 |
| Wosid | WOS:000278624200002 |
| Url | http://doi.wiley.com/10.1111/j.1365-3040.2010.02128.x |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | assimilate partitioning; callose; crop yield; leaf anatomy; open-top; chambers; ozone; potato; starch; birch betula-pendula; yield responses; diurnal changes; elevated ozone; carbon-dioxide; starch content; surface ozone; norway spruce; ambient; ozone; source leaves |
| Is Qa | No |
| Relationship(s) |
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