Spore Shedding in Catenella impudica from the Godavari Estuary at Bhiravapalem, India

Abstract

Catenella impudica (Mont.) J.Ag is an important species for human consumption from estuarine regions of Asia. Seasonal shedding of carpospores and tetraspores was quantified between January and December 2004 for natural populations of C. impudica. Vegetative and tetrasporophytic plants were available throughout the year but gametophytic plants were observed only from September to May. Tetraspore shedding was observed throughout the year and carpospores shedding was noticed only during the months when material was available. Hydrographical conditions of the estuary such as low water temperature and low salinity are correlated to the formation and release of carpospores and tetraspores in C.impudica.裬ꂄ냬袠Ȁ셍؀䝏䭓䉗∀갩鳪떭듬蒤裬ꂄ냬袠釭验䀀䩯畲湡氠潦⁴桥⁋潲敡⁃潮獴牵捴楯渠卡晥瑹⁅湧楮敥物湧⁁獳潣楡瑩潮Ԁ正獥愁aĀ焆e뎄萀帀ᔀ듬蒤裬ꂄ룫꾸頂A丆G佋卄䜢i芬⧭閜귪놴ꓬ閈蓪뢰ꃭ频谀k捳敡Ā愁a؀냪낄帀က铪낄训ꃪ뢰Ȁ셏؀䝏佇䈴ሀ鳪떭蓬鲡釭验ᘀ䵯湴桬礠䭯牥慮⁃桩捫敮Ѐ正捡Ā愁m؀铪낄蔀ᔀ貐胭辬ꗫ겼頂A倆G假䡂ㄧi閜귪뎨郬Ꞁ곬麥뗬鞅釫辙냭閩Ḁ䍯牲畧慴敤⁰慣歡杩湧潧楳瑩捳؀正灣楡Ā愁bꧬ鮔萻Ԁ䜀N䷙ઓ6ࠀ맬莉㈱Ȁ셑؀䝓䩏䉔᠀鳪떭듬蒤郬鮐釭验Ԁ歯牡猁aĀ焆e뎄萀栀ༀ釬芰藬ꂕ됂A分G协䩂䌘i閜귪뒑냬鞅蓭鶥谗P桯瑯湩捳⁩湤畳瑲礠湥睳Ԁ歡灩搁aĀ戉e늩铪낄䨀ሀ볭莝볬芬賫鎤Ȁ셓؀䝔䡈䈷ሀ鳪떭볭莝釭验Ѐ歨愲Ā愁m؀铪낄䴀ᔀ볭莝裬鲵볬蒸鰂A吆G呈䡃䄒i閜귬ꎼ鷭频谀k桡㈁aĀ愆i鞰萀戀က賫ꂛ렠듬誤Ȁ셕؀䝔低䉕℀鳪떭賫ꂛ룬뮨賬鶴裭频谋P慬汥琠乥睳Ѐ歰捡Ā愁q؀蓪낄鈀Ḁ鳪떭胭蚨귫뎑郭频賬ꞀȀ셖؀䝔剂䈸鳪떭胭蚨귬鶘賭频谳J潵牮慬映瑨攠䭯牥慮⁃慴桯汩挠䡯獰楴慬⁁獳潣楡瑩潮Ѐ正桡Ā愁a؀냪낄攀ༀ곬誤ꓫ꾸頂A圆G呒䉄䰛i閜귪낀ꚭ飫ꎌ釭验ሀ䡥慬瑨⁡湤⁍楳獩潮Ѐ正桡Ā愁f飫薄萀开룬誤볬誤Ȁ션؀䝔剈䉅℀鳪떭胭蚨귭颸ꓭ钼ꓭ频谇H潳灩捥Ԁ正桡㄁a