INFLUENCE OF ROOT NH4+ AND NO3- CONTENT ON THE TEMPERATURE RESPONSE OF NET NH4+ AND NO3- UPTAKE IN CHILLING SENSITIVE AND CHILLING RESISTANT LYCOPERSICON TAXA

被引:17
作者
SMART, DR
BLOOM, AJ
机构
[1] Department of Vegetable Crops, University of California
基金
美国国家科学基金会;
关键词
LYCOPERSICON; AMMONIUM; NITRATE; TEMPERATURE RESPONSE; CHILLING;
D O I
10.1093/jxb/42.3.331
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We studied the influence of internal ammonium and nitrate content on the temperature response of ammonium and nitrate uptake in both chilling sensitive and chilling resistant tomatoes. Three taxa were examined: Lycopersicon esculentum Mill. cv. T-5, a chilling sensitive cultivar, Lycopersicon hirsutum Humb. and Bompl. LA1264, a wild, chilling sensitive accession from the lowlands of Ecuador, and Lycopersicon hirsutum LA1778, a chilling resistant accession from the highlands of Peru. Short exposures (4 h) of L. esculentum cv. T-5 to chilling temperatures irreversibly inhibited ammonium absorption for at least 6 h. Nitrate absorption in this taxon and ammonium and nitrate absorption in the L. hirsutum accessions recovered fully and immediately from such exposures. The chilling resistant accession, L. hirsutum LA1778, showed a lower Q10 for ammonium absorption (1.54 +/- 0.10, mean +/- s.e.) than its chilling sensitive relatives, L. hirsutum LA1264 (2.37 +/- 0.35) and L. esculentum cv. T-5 (1.92 +/- 0.11). The temperature response of nitrate absorption depended on internal nitrate status; plants grown at high levels of ammonium and nitrate (200 mmol m-3) showed higher Q10's for nitrate uptake (2.29 +/- 0.10) than those depleted of internal NO3- (1.86 +/- 0.12).
引用
收藏
页码:331 / 338
页数:8
相关论文
共 35 条
[1]  
BJORKMAN O, 1977, CARNEGIE I WASHINGTO, P346
[2]  
Bloom A. J., 1989, Applications of continuous and steady-state methods to root biology., P147
[3]   DIFFERENCES IN STEADY-STATE NET AMMONIUM AND NITRATE INFLUX BY COLD-ADAPTED AND WARM-ADAPTED BARLEY VARIETIES [J].
BLOOM, AJ ;
CHAPIN, FS .
PLANT PHYSIOLOGY, 1981, 68 (05) :1064-1067
[4]  
BLOOM AJ, 1989, PLANT PHYSIOL, V87, P794
[5]   THE EFFECT OF ROOT TEMPERATURE ON THE UPTAKE OF NITROGEN AND THE RELATIVE SIZE OF THE ROOT-SYSTEM IN LOLIUM-PERENNE .1. SOLUTIONS CONTAINING BOTH NH+4 AND NO-3 [J].
CLARKSON, DT ;
HOPPER, MJ ;
JONES, LHP .
PLANT CELL AND ENVIRONMENT, 1986, 9 (07) :535-545
[6]   RELATIONSHIPS BETWEEN ROOT TEMPERATURE AND THE TRANSPORT OF AMMONIUM AND NITRATE IONS BY ITALIAN AND PERENNIAL RYEGRASS (LOLIUM-MULTIFLORUM AND LOLIUM-PERENNE) [J].
CLARKSON, DT ;
WARNER, AJ .
PLANT PHYSIOLOGY, 1979, 64 (04) :557-561
[7]   FACTORS AFFECTING MINERAL NUTRIENT ACQUISITION BY PLANTS [J].
CLARKSON, DT .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1985, 36 :77-115
[8]   PHYSICAL-PROPERTIES OF MITOCHONDRIAL LIPIDS FROM LYCOPERSICON-HIRSUTUM [J].
DALZIEL, AW ;
BREIDENBACH, RW .
PLANT PHYSIOLOGY, 1982, 70 (02) :376-380
[9]   COMPENSATORY CHANGES IN ION FLUXES INTO BARLEY (HORDEUM-VULGARE-L CV BETZES) SEEDLINGS IN RESPONSE TO DIFFERENTIAL ROOT SHOOT GROWTH TEMPERATURE [J].
DEANEDRUMMOND, CE ;
GLASS, ADM .
JOURNAL OF EXPERIMENTAL BOTANY, 1983, 34 (149) :1711-1719
[10]  
EPSTEIN E, 1972, P412